Why is it Harder to Drive Backwards?

Why is it harder to drive backwards than forward

 

World's Simplest Electric Train

A dry cell, two magnets and a coil: very simple and surpringly effective.

 

Newton Lecture 2014: Ultracold Gases by Professor Deborah Jin

The lecture at the IOP’s London centre on 14 October was given by Prof. Jin in her capacity as the 2014 winner of the Isaac Newton Medal and Prize – the Institute’s highest accolade.

 

Why Isn't "Zero G" the Same as "Zero Gravity"?

This Quick Question explains the difference between gravity and g-force, and how you can experience zero-g in space even when it’s not zero gravity!