The objects you interact with every day are predictable – you can pick up a box, sit down in a chair without falling to the floor, or open a door without your hand passing through the knob. But if you ...

0:00 Dangers everywhere 0:48 The most famous equation in science 2:42 The equation shows mass of universe may be unstable ...

in which the mass ratio (the ratio of initial to final mass of the rocket) is related to the velocity ratio (the ratio of the delta-v achieved by the rocket, to the exhaust velocity ve). (For ...

Astronomer Frank Drake formulated his influential equation in 1961 to estimate the number of civilizations in the Milky Way capable of communicating with us. Our understanding of planetary science has ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Gordon Scott has been an active investor and ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...