Engines and construction equipment are all complex machines. How do some of these engines work, and how do they help us construct buildings and structures?
Where should I sit to get the best ride on a roller coaster?
Do certain cars in a roller coaster train give a better ride? Why? Which is the best car? See more »
How Caterpillar Backhoe Loaders Work
You see backhoe-loaders on nearly every construction site around town. Learn how these amazing machines work and what they are able to do. See more »
How Gear Ratios Work
You see gears in just about anything that has spinning parts -- car engines, transmissions, VCRs... Learn what these gears are doing and get to the bottom of the "gear ratio" concept! See more »
How Gears Work
Gears are a fundamental part of just about any mechanical object -- if it
has a motor, engine or spring, it probably has gears! Learn dozens of
fascinating facts about gears! See more »
How do they get the balls in ball bearings so perfectly round and smooth?
How do manufacturers get the balls in ball bearings so perfectly round and smooth? See more »
What is a punkin chunkin?
A punkin chunkin is explained in this article. Learn about a punkin chunkin. See more »
How Maglev Trains Work
Magnetic levitation trains are becoming a popular transportation topic all around the globe. Learn about electromagnetic suspension, the most popular type of maglev train. See more »
How Bearings Work
Bearings are the invisible heroes inside many mechanical devices. Learn about all different kinds of bearings. See more »
How Submarines Work
Submarines are essentially containers that hold people and air. Learn how these remarkable vessels dive, surface and maneuver through the ocean. See more »
How do torpedo engines work under water?
Since a torpedo cannot have an air-breathing engine like a boat, how is it propelled through the water? See more »
Loading more content
This One's More Than Two Months' Salary: World's Largest Diamond Up for Auction
Hackers Turn Computer Fans Into Snitches
Watch: China's Ancient Buddhist Cave Art Perfectly Recreated in L.A.
See More Headlines »