Germany gives green light to bicycle highways

It's every cyclist's dream: no red lights, no trucks, just a clear, smooth lane to zoom down with the wind in your face. Welcome to Germany's first bicycle Autobahn.

How strong is gravity on other planets?

Gravity is a fundamental force of physics, one which we Earthlings tend to take for granted. You can't really blame us. Having evolved over the course of billions of years in Earth's environment, we are used to living with ...

Bone, not adrenaline, drives fight or flight response

When faced with a predator or sudden danger, the heart rate goes up, breathing becomes more rapid, and fuel in the form of glucose is pumped throughout the body to prepare an animal to fight or flee.

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