Engineering
[画像:Prince Albert Railroad Bridge over the River Tamar, Cornwall, England, by Isambard Kingdom Brunel.]
- Bridges and tunnels: Why are there so many different types of bridge? Which one works best?
- Buildings: Why don't buildings fall down?
- Carburetors: How does a car engine mix fuel and air to produce power efficiently?
- Car engines: How do they convert liquid fuel into a trip to the mall?
- Clockwork: How can you power things with a windup spring and gears?
- Cranes: How do they work? Why don't they topple over?
- Cranks and cams: What's the best way to turn rotary motion into back-and-forth, push-pull motion?
- Diesel engines: Why are diesel engines more efficient than gasoline engines?
- Drilling: What's the science behind drilling holes? What are drills made of?
- Eddy-current brakes: How can you stop a high-speed train with a magnet?
- Engines: How does an engine convert fuel into mechanical power?
- Flywheels: How can you store energy for hours on end with nothing but a wheel?
- Gas springs: How does a fluid-filled pipe support your office chair or the trunk lid of your car?
- Gears: How can we make wheels turn faster or with more force?
- Hydraulics: How do liquid-filled pipes allow one person to lift or move incredibly heavy loads?
- Jet engines: How fast is air travelling when it roars out of the back?
- Pneumatics: How can you apply force or shift energy with pipes full of compressed air?
- Pumps and compressors: How do you move liquids and gases from place to place?
- Springs: How do springs store energy and why is that helpful?
- Stirling engines: Why are Stirling engines among the most efficient engines of all?
- Steam engines: If we love them so much, why don't they still pull trains today?
- Turbines: How can you get useful energy from a moving liquid or gas?
- Valves: What stops fluid leaking from a pipe or controls how quickly it moves through?
