It seems that the fastest way down a steep hill is through backflips. Here's a demonstration on how to do it properly. By all means, please try this at home, or wherever possible and send us the resulting video. Enjoy!

A cool idea: turning an ordinary wush kung-fu demonstration in something spectacular by using Star Wars style light sabers. The result is one of the coolest fighting vids! Enjoy!

Here’s a cool demonstration about how some special sand expands from a tiny amount to fifty times it’s own size. Pretty cool! Instant sand!

For around 200,000 US dollars you can buy your very own personal jet-pack. Here's a video demonstration of how it works done by the manufacturer. Pretty cool actually!

Another robot demonstration, but with added music this time, making this video one of the coolest robot demonstrations I've seen since the beer launching fridge, even though that doesn't actually qualify as a proper robot.

This fantastic new active car suspension has amazed everyone. Not only that you don't feel speed bumps and hard corners, but you can do some "tricks" if you want to. Have a look at the demonstration video and see for yourself!

A cool demonstration of how liquid metal (actually an exotic alloy) can store energy and then return it, in a surprisingly elastic way. Enjoy the liquid metal demo video!

An awesome video of a sound resonance experiment. By raising the wavelength of the sound beautiful patterns (and more complex) appear in the powder. Just another demonstration that physics can be beautiful Also check out this Fire Spectroscope Video. It's also awesome.

Well, in theory, massive amounts. Finding a way to store it, is still the biggest problem. But to properly visualize what a tiny amount of the energy that the Sun gives to Earth can do, here's a demonstration of a solar furnace melting a piece of steel in seconds. Now that's impressive!

An amazing martial arts demonstration of Wushu the non-combative demo version of Kung-Fu made entirely for shows. Pretty impressive, isn't it? Well it should be, because hundreds of hours of work went into it! Amazing!

The tremendous power of a 747's jet engines is enough to blow away a small pick-up truck! Watch this video demonstration, it's really amazing! Enjoy!

A gauss gun, works by sequentially accelerating a projectile to a desired speed by using either magnets or coils. The first video is a small demonstration of the principle behind the whole thing, by using magnets. The following videos are weapons which were homemade, and as you can see work remarkably well. So well in fact, that the US Navy will implement such weapons on its ships by 2020, after they succesfully tested an 8 Megajoule prototype.

This technology is bound to make it into safer systems against car bombs! As a demonstration one traffic pole, and one truck full of sandbags, go head to head. Only one will make it out alive. Who will it be? Just watch!