Take a look at this short clip from the BBC's Time Watch series on how Stonehenge evolved through numerous iterations. While the multiple stages of building Stonehenge are relatively understood by modern archeologists, how they were erected and their exact purpose and usage, are still fiercely debated topics. Many theories have been postulated for what the site was used for, some suggesting that it was a domain of the dead and burial centre, to others suggesting it ...

Good old Ray Mears, where would any budding adventurer be without him? Well, if they hadn't watched this video, then probably both cold and wet. A great clip from Ray's Extreme Survival TV show on how to build a woodland shelter. You can learn more extreme survival in the next issue of How It Works, where ex-SAS survival expert John 'Lofty' Wiseman gives his top-tips on desert survival techniques.

Find out what Top Gear stalwart Jeremy Clarkson thinks about the G-Wiz electric car It’s no supercar, but GoinGreen’s G-Wiz automatic electric vehicle – quite popular in London – gets a classic Top Gear critique from Clarkson in this clip featuring an electric car and a table. But who will win? Fight!

A simple gyroscope demonstrates the incredible effects of angular momentum This video illustrates how a simple child's toy can defy everything we think we know about gravity. Discover how spinning the wheel of the gyroscope enables it to stand up on its own, balance on a piece of string, and generally appear to levitate – all due to the effects of angular momentum. This video also refers to the ...

Playing with superconductors can be fun! We all know that if we put two magnets next to each other with opposing north poles they repel each other. Indeed, this principle is in use today for commercial purposes, as can be seen in the high-speed floating maglev trains of China and Japan. However, when a magnet is put opposite a super-cooled superconductor then it levitates, as can be seen in the video. But why is this? Superconductors work as, ...

Take a look at this documentary on Egypt's pyramids, for which Dassault Systèmes provided the superb animations. Nick Lerner spoke to How It Works about the project. Nick Lerner: Nobody knows with any certainty how the Egyptians built the Great Pyramids. Many theories have been proposed, but none of them stood up to analysis. It was exactly this unresolved riddle that led several teams at Dassault Systèmes, the world leader in real-time 3D technology, to provide backing ...

A shocking video demonstrating the devastating effects of earthquakes The terrifying effects of the sudden, dramatic ground shaking that takes place during an earthquake is caught on film, revealing the massive strength and energy of one of the planet's most destructive phenomena. Earthquakes occur when stress builds up along the fault lines of the Earth’s tectonic plates, causing the Earth’s crust to move suddenly. For an in-depth explanation of ...

When Nikola Tesla created his famous coil I don't think he envisaged it being used like this! The musical effect of this Tesla Coil is produced by moderating the rate and duration in which is it supplied with power via midi data and a control unit. Nikola Tesla created the first Tesla Coil in 1891, demonstrating it in America to scientists and civilians alike, before filing numerous patents as he evolved it through trial and error. Tesla Coils ...

Normally you wouldn’t have time to blink, but high-speed cameras make this amazing compilation of normally lightning-quick events a feast for the eyes High-speed cameras can achieve very high frame rates (or recording speeds) in order to see incredible slow-motion film. While normal TV runs at about 25 frames per second (fps), the most advanced high-speed cameras can achieve up to 1,000,000 fps. You’ll see eggs go bang, water ...

This is just cool. Check out this Rubik's Cube solving Robot. The Rubik's Cube was created in 1974 by Hungarian sculptor and architect Ernő Rubik. The current world record for a human solving a 3x3x3 cube is an express 7.08 seconds. The cube itself consists of 26 miniature cubelets which rotate around a central fixed axle, with the central cubelet on each face acting as a static facade providing structure for the other pieces to fit into and ...