
What if the Earth were hollow?
Imagine that we dig a tunnel going from one side of our planet to the other side. What would happen with the body falling through that tunnel? Or what if the Earth were shell, with empty space insid...
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Why are astronauts weightless in Space?
It would be hard to find a person who haven't saw on TV how astronauts float inside International Space Station orbiting around Earth. On question why is it so, answer would be "because they are wei...
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Hyper Earth: the New World in 4k
Our world, Earth, is changing before our eyes. Take a look on new HD images of Earth and watch how it changes. Incredible 4k supercomputer images of Earth brought to you on video... ...
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Standard Model of Elementary Particles
The Standard Model is the collection of theories that describe the smallest experimentally observed particles of matter and the interactions between energy and matter. Three categories of particles...
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