powered

Hobby RC: Brushless Motor Conversion Basics - Tested

Hobby RC: Brushless Motor Conversion Basics - Tested

Airplane models that were designed to use brushed motors can enjoy a huge boost in performance with an upgrade to brushless power. Most modern, electric-powered RC airplanes utilize brushless motors for propulsion. And why not? Brushless motors are much more efficient than their brushed cousins.
Toy Physics--Rollback Toy Challenge--Homemade Science with Bruce Yeany

Toy Physics--Rollback Toy Challenge--Homemade Science with Bruce Yeany

The rollback toy idea is put to the test to see how far we can get it to travel when powered by just 3 rubber bands. It is a great example of changing potential mechanical energy into kinetic motion energy. Fine tuning and given a long and wide enough area, this roll back toy has the potential to go 200 feet or more.
First flight of hydrogen-powered drone with water vapour exhaust

First flight of hydrogen-powered drone with water vapour exhaust

A drone powered by hydrogen pellets is cleaner and lighter than conventional lithium batteries – and perfect for long-distance flight
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