{"id":114,"date":"2023-08-31T14:59:12","date_gmt":"2023-08-31T14:59:12","guid":{"rendered":"https:\/\/exactas.uba.ar\/web\/palabras\/?p=114"},"modified":"2023-09-08T15:58:56","modified_gmt":"2023-09-08T15:58:56","slug":"el-pendulo","status":"publish","type":"post","link":"https:\/\/exactas.uba.ar\/web\/palabras\/el-pendulo\/","title":{"rendered":"El p\u00e9ndulo"},"content":{"rendered":"\n<p>Exactamente hace 350 a\u00f1os, en 1673, el astr\u00f3nomo, f\u00edsico y matem\u00e1tico holand\u00e9s Christiaan Huygens public\u00f3 un c\u00e9lebre estudio cient\u00edfico sobre <strong>el p\u00e9ndulo<\/strong> (a\u00f1os antes hab\u00eda inventado el reloj de p\u00e9ndulo) y el movimiento oscilatorio.<br>La primera palabra (en el lat\u00edn original) del t\u00edtulo de esa obra, una de las m\u00e1s importantes de la mec\u00e1nica, se leer\u00e1 en vertical si se responden estas diez preguntas.<\/p>\n\n\n<div class=\"lazyblock-grilla-ZiOl43 wp-block-lazyblock-grilla\"><main class=\"container\">\r\n    <center>\r\n        <div class=\"table-responsive\">\r\n            <table>\r\n                <tbody id=\"bodyTabla\">\r\n                                                                <tr>\r\n                            <th>1<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"0\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"1\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"2\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"3\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"4\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>2<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                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autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"6\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"7\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"8\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"9\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"10\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"11\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"12\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>3<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"13\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"14\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"15\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"16\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"17\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"18\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"19\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"20\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"21\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"22\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"23\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>4<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"24\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"25\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"26\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"27\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"28\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"29\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>5<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"30\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"31\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"32\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"33\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"34\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"35\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"36\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>6<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"37\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"38\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"39\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"40\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"41\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"42\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"43\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>7<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"44\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"45\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"46\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"47\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"48\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"49\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"50\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"51\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"52\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"53\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>8<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"54\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"55\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"56\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"57\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"58\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"59\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"60\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>9<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"61\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"62\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"63\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"64\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                            <tr>\r\n                            <th>10<\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control form-control centro' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"65\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"66\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"67\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"68\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"69\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"70\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"71\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"72\">\r\n                                                                    <\/th>\r\n                                                            <th>\r\n                                                                            <input type='text' class='form-control ' maxlength='1' autocomplete='off' size='1' onkeyup='pasar(event.keyCode, this.id)' id=\"73\">\r\n                                                                    <\/th>\r\n                                                    <\/tr>\r\n                                    <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n        <div id=\"cierre\">\r\n\r\n        <\/div>\r\n        <div>\r\n            <input class=\"btn btn-primary btn-sm\" type=\"button\" value=\"Revisar\" onclick=\"revisar()\">\r\n        <\/div>\r\n    <\/center>\r\n<\/main>\r\n    <script type=\"text\/javascript\">\r\n\r\nlet respuestasOk = [[5,\"china\"],[5,\"foucault\"],[2,\"isocronismo\"],[2,\"newton\"],[4,\"galileo\"],[1,\"panteon\"],[4,\"ingenieria\"],[6,\"inercia\"],[5,\"cucu\"],[6,\"metronomo\"]];\r\nfunction revisar() {\r\n            let cont = 0\r\n            let respuestas = new Array(10)\r\n            for (let i = 0; i < 10; i++) {\r\n                respuestas[i] = \"\"\r\n                for (let j = 0; j < document.getElementById(\"bodyTabla\").getElementsByTagName(\"tr\")[i].getElementsByTagName(\"th\").length; j++) {\r\n                    if (document.getElementById(\"bodyTabla\").getElementsByTagName(\"tr\")[i].getElementsByTagName(\"th\")[j].getElementsByTagName(\"input\").length > 0) {\r\n                        let letra = document.getElementById(\"bodyTabla\").getElementsByTagName(\"tr\")[i].getElementsByTagName(\"th\")[j].getElementsByTagName(\"input\")[0].value.toLowerCase();\r\n                        respuestas[i] = respuestas[i] + letra;\r\n                    }\r\n                }\r\n       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document.getElementById(\"bodyTabla\").getElementsByTagName(\"input\")[numero + 1].focus();\r\n                }\r\n            } else if (tecla == 37) {\r\n                if (numero > 0) {\r\n                    document.getElementById(\"bodyTabla\").getElementsByTagName(\"input\")[numero - 1].focus();\r\n                }\r\n            } else if (tecla == 39) {\r\n                if (numero < document.getElementById(\"bodyTabla\").getElementsByTagName(\"input\").length - 1) {\r\n                    document.getElementById(\"bodyTabla\").getElementsByTagName(\"input\")[numero + 1].focus();\r\n                }\r\n            }\r\n        }\r\n    <\/script><\/div>\n\n\n<ol class=\"wp-block-list\">\n<li>El primer uso conocido del p\u00e9ndulo se remonta al siglo I d.C. Era un sism\u00f3metro: el dispositivo se balanceaba dentro de una urna y, al ser perturbado por un movimiento lejano, activaba una serie de palancas que liberaban una bola en una direcci\u00f3n determinada, correspondiente al punto cardinal en el que se hab\u00eda producido el fen\u00f3meno. \u00bfEn d\u00f3nde se invent\u00f3 ese detector de terremotos?<\/li>\n\n\n\n<li>En 1851, un f\u00edsico franc\u00e9s present\u00f3 un p\u00e9ndulo que, oscilando libremente en un plano vertical, permiti\u00f3 demostrar el movimiento de rotaci\u00f3n de la Tierra. \u00bfC\u00f3mo se apellidaba ese f\u00edsico?<\/li>\n\n\n\n<li>\u00bfC\u00f3mo se denomina a la igualdad de duraci\u00f3n de las oscilaciones de un p\u00e9ndulo y, en general, a la igualdad de duraci\u00f3n de los movimientos de un cuerpo?<\/li>\n\n\n\n<li>Existe un dispositivo que demuestra de manera gr\u00e1fica la conservaci\u00f3n de la energ\u00eda y de la cantidad de movimiento, compuesto por dos o m\u00e1s p\u00e9ndulos id\u00e9nticos cuyas bolas colisionan y que fue popularizado a mediados del siglo pasado como juguete de oficina. Fue bautizado \u201cp\u00e9ndulo de \u2026..\u201d \u00bfDe qui\u00e9n?<\/li>\n\n\n\n<li>Mucho antes que Huygens, un c\u00e9lebre astr\u00f3nomo, matem\u00e1tico y f\u00edsico italiano fue el primero en estudiar las propiedades del p\u00e9ndulo y su utilidad para medir el tiempo. \u00bfDe qui\u00e9n hablamos?<\/li>\n\n\n\n<li>Aquel p\u00e9ndulo que demostraba el movimiento rotatorio del planeta se present\u00f3 en p\u00fablico en un concurrido evento, suspendido de la c\u00fapula de un c\u00e9lebre edificio de Par\u00eds, donde est\u00e1n las tumbas de Voltaire, Rousseau, Marie Curie, Malraux y otras figuras de la cultura francesa. \u00bfQu\u00e9 edificio?<\/li>\n\n\n\n<li>Hay dos de esos p\u00e9ndulos en la ciudad de Buenos Aires. Uno lo tenemos aqu\u00ed: fue instalado en 2004 en el hall del Pabell\u00f3n 2 de Ciudad Universitaria. El otro est\u00e1 en un edificio de estilo neog\u00f3tico, una de las sedes de otra Facultad de la UBA. \u00bfQu\u00e9 Facultad?<\/li>\n\n\n\n<li>\u00bfC\u00f3mo llama la f\u00edsica a la propiedad que tiene un cuerpo de permanecer en su estado de reposo o movimiento relativos?<\/li>\n\n\n\n<li>Hay muchos tipos de relojes de p\u00e9ndulo, la mayor\u00eda provistos de un gong que indica cada hora o media hora. Uno que se populariz\u00f3 a partir del siglo XVII anuncia la hora con el canto de un aut\u00f3mata con forma de p\u00e1jaro. \u00bfC\u00f3mo se llama ese reloj?<\/li>\n\n\n\n<li>Las propiedades mec\u00e1nicas del p\u00e9ndulo tambi\u00e9n se utilizan para fijar el tempo en las composiciones musicales. \u00bfC\u00f3mo se llama el dispositivo que mide ese tempo?<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"Exactamente hace 350 a\u00f1os, en 1673, el astr\u00f3nomo, f\u00edsico y matem\u00e1tico holand\u00e9s Christiaan Huygens public\u00f3 un c\u00e9lebre estudio cient\u00edfico sobre el p\u00e9ndulo (a\u00f1os antes hab\u00eda inventado el reloj de p\u00e9ndulo) y el movimiento oscilatorio.La primera palabra (en el lat\u00edn original) del t\u00edtulo de esa obra, una de las m\u00e1s importantes de la mec\u00e1nica, se leer\u00e1&#8230; <a class=\"view-article\" href=\"https:\/\/exactas.uba.ar\/web\/palabras\/el-pendulo\/\">LEER +<\/a>","protected":false},"author":1,"featured_media":121,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia"],"acf":[],"_links":{"self":[{"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/posts\/114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":2,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/posts\/114\/revisions"}],"predecessor-version":[{"id":118,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/posts\/114\/revisions\/118"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/media\/121"}],"wp:attachment":[{"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exactas.uba.ar\/web\/palabras\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}