The post Straight Lines May Seem Like A Perfectly Natural Structure, But They Don’t Actually Exist first on TwistedSifter.

When it was sunny (yellow lines), the walker (labeled SM) was able to keep a steady and rather lengthy straight line. Humans, apparently, slip into circles when we can't see an external focal ...

Shini Somara introduces us to the ideas of motion in a straight line. In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a ...