Behind every weapon system lies a foundation of physics and engineering. This historic Army training film examines the fundamentals of ballistics, explaining how projectiles travel, how propellants ...

Isaac Newton would never have discovered the laws of motion had he studied only cats. Suppose you hold a cat, stomach up, and drop it from a second-story window. If a cat is simply a mechanical system ...

Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their ...

Sir Isaac Newton was an English polymath who was a mathematician, physicist, astronomer, alchemist, theologian, author, and ...

Isaac Newton would never have discovered the laws of motion had he studied only cats. Suppose you hold a cat, stomach up, and drop it from a second-story window. If a cat is simply a mechanical system ...

This article was originally featured on Knowable Magazine. Isaac Newton would never have discovered the laws of motion had he studied only cats. Suppose you hold a cat, stomach up, and drop it from a ...