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95%VideoAug 2011

World's simplest motor

(0:20) Ingredients: Battery, wire and magnet

90%PictureJul 2007

How to use a D battery in a C fitting

Simple picture tells it all


88%VideoMar 2007

12V battery hack

Cheap and easy with a big payoff

88%VideoSep 2015

Bill Nye, are you for or against fracking?

(10:52) Fracking isn't inherently a bad idea but ...

88%VideoOct 2015

Tesla's Gigafactory

(0:59) Drone's eye view of Tesla's massive battery factory currently under construction in the Nevada desert.

88%VideoAug 2016

Tesla Gigafactory's grand opening

(15:46) Elon Musk introduces Gigafactory, the world’s largest battery factory.

88%VideoMar 2017

Elon Musk offers solution for South Australia's power problem

(2:25) And if it takes longer than 100 days, it's free.

87%VideoAug 2013

Simplest way to test an AA battery

(1:30) A simple method to test any alkaline battery in seconds!


87%VideoAug 2013

Michio Kaku: Henry Ford vs Thomas Edison

(1:49) When it comes to powering cars, oil beat electricity. But what of the future?


87%VideoAug 2016

The problem (and fix) with renewable energy

(4:05) As the world switches to renewable energy, there's the problem of balancing the grid. Tom Scott explains.