Henry Cavendish
Description: Henry Cavendish was the first scientist to test gravity in the laboratory. Thanks to the "Cavendish Experiment," we know how much Earth weighs!
Category: Janet's Planet
Note: This video streams on an HTML5 player. It runs on Chrome, Firefox, Opera, Safari or Internet Explorer 9 or higher. It is also optimized for iOS devices, including iPad, iPod, and iPhone.
Game Spotlight
Can you pop the ultimate wheelie? Put your BMX biking skills to the test by keeping your wheelie going while you ride up, down and over obstacles. Keep a steady hand and don't get too nervous because if your front wheel touches the ground or you crash you