Bending on almost-invisible hinges, Ghostcube is a system of wooden cubes that can create different structures depending on how they’re twisted and rearranged. They’re made by Stockholm-based artist Erik Åberg.

If you’ve seen Brusspup’s Amazing Moving Cube tutorial, then you’ll have an idea about how Ghostcube may have been constructed, and how you can DIY something similar. Get started!

via Viral Viral Videos.

How to Make Heart-Shaped Eggs by DaveHax.

via laughingsquid.

From The New York Times, Olympics 2014: The Science of Snowmaking: 

Machines make snow the same way nature does, by freezing water droplets. But they do it a few feet above the ground, rather than in the much colder conditions high in the atmosphere. Snowmaking machines employ a few thermodynamic tricks to help, but at times there is a limit to what physics can do…

…a droplet may not freeze entirely during the few seconds it takes to fall to the ground — what snowmakers call hang time.

“We’re basically making eggs,” Mr. Moulton said — icy shells around still-liquid centers.

Related snow videos: when nature handles it, How Is Snow Made?

Here’s a fun, quick trick: How To Draw Your Hand In “3D”. What other things around the house or outside can you use this technique with?

Related drawing vids: how to draw the Penrose Rectangle and Pardon My Dust. Plus more optical illusions.

How to make geometric bubbles. File under: fun thing we’ll be doing this weekend.

There are more bubbles floating around in the archives.

Thanks, @madfishmonger.