Tag Archives | gravity

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Gravitational Waves Bring a Whole New Way of Studying the Universe

It’s been described as the discovery of a lifetime, the announcement that scientists have observed gravitational waves caused by the collision of two black holes 10 billion light years away (and 10 billion years ago!) What’s all the excitement about? We’ve collected some videos to explain it all. First, scientists from Cardiff University splash around in a […]

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gravity

Watch a Bowling Ball and a Feather Fall in a Vacuum [Video]

One of the most suprising things we learn in Physics class is that the acceleration due to Earth’s gravity is constant for any mass (9.81 m/s/s). Gallileo demonstrated it in 1589 by dropping objects of different mass from the Leaning Tower of Pisa. Sure, a heavier mass will do more damage, but they all reach the ground at the same time. One explanation […]

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