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Your search for "archimedes' screw" returned 6 results
How Screw-Drive Vehicles Work
auto.howstuffworks.com/screw-drive-vehicle.htm
A screw-drive vehicle might be exactly what you need to traverse large areas of snow, muck or mud. Read about screw-drive vehicles at HowStuffWorks.
How Cement Mixers Work
science.howstuffworks.com/transport/engines-equipment/cement-mixer.htm
Few are unfamiliar with the mixer trucks that transport concrete from the factory to the construction site. How do they keep that stuff from hardening while they move?
Can You Match the Farm Equipment to Its Function?
play.howstuffworks.com/quiz/can-you-match-the-farm-equipment-to-its-function
Farming has come a long way since the days of pulling a plow behind an ox. Modern farming is chock full of more specialized equipment than you can shake a rake at. How much do you know? Hop on the tractor and let's find out!
Who invented the elevator?
science.howstuffworks.com/innovation/inventions/who-invented-the-elevator.htm
Like so many other modern conveniences that we take for granted, the history of the elevator is more complicated than it may seem at first glance. Believe it or not, there's some controversy over who invented this commonplace contraption.
10 Must-have Tools for Any Workshop
home.howstuffworks.com/10-must-have-tools-workshop.htm
We love our power drill, but for some jobs, nothing beats a good old hand tool. What are some of the must-haves for your toolbox?
Inside 'MythBusters'
entertainment.howstuffworks.com/mythbusters.htm
Wondering how MythBusters works and what's the secret to Discovery Channel MythBusters? See how MythBusters works now.