Pick a point in time — any random point in the world's history — and you'll likely be able to find some sign of genius. Brilliant minds have speckled generations past, providing their people with ...

The disassembled components of the NAS-EFC, including concentric stainless steel screws, current collectors, housings and bearings. The integrated screw-pump mechanism allows the device to handle ...

Introduction Can you think of a way to make water run uphill—without using electricity? The ancient Greeks discovered how to do just this! They developed a device called the Archimedes screw to lift ...