#716 How much height does a parachute need?
How much height does a parachute need? It completely depends on the type of parachute. We need to think about how long it takes a packed parachute to be released…
How much height does a parachute need? It completely depends on the type of parachute. We need to think about how long it takes a packed parachute to be released…
How can we catch a ball without looking at it? It is a combination of proprioception and the brain’s ability to predict. What is proprioception? It is the ability to…
What are the four fundamental forces? The strong force, the weak force, gravity, and the electromagnetic force. The four forces are the fundamental forces that govern everything in the universe.…
I learned this today. Sustained G-force of 6 G are generally considered to be fatal because they squash our organs and starve our brains of oxygen. Gs is the shortened…
I learned this today. Nobody knows why gravity exists. They can explain what happens, but not really why. Gravity can be observed, but not completely explained. Gravity is the force…
I learned this today. Dark matter is a hypothetical matter in space that doesn’t absorb, emit or reflect light, yet has gravity and keeps the universe together. It is theorized…