What is a wheel and axle mechanism? A wheel and axle mechanism is a simple device you make when you connect one or more wheels to an axle. They are used to help things move. A wheel is a round, flat ...

Difficult doorknobs, funnel races, water wheels and pinwheel power! Difficult doorknobs, funnel races, water wheels and pinwheel power! The Curious Crew learns that a wheel and axle consists of a ...

To most of us, wheels seem pretty intuitive. You’ve probably known from an early age, for example, that circular or rounded things roll more easily than boxy or angular things. Knowing this, it’s hard ...

Some debates are never ending and will rage until time stops. Ford or Chevy. Good versus evil. Old or new. Chocolate or vanilla. Donkey or elephant. Which is best can lead to arguments that are ...

Drag racing is all about overkill: Too much horsepower is never enough. The drivetrain takes all the gaff, so racers tend to it with Brooklyn Bridge-like structures to keep from scattering parts all ...