[Video] Making a Perfect Ice Sphere

By Anupum Pant

Ice cubes are too mainstream. Moreover, considering the greater surface area cubes have (as compared to spheres), they melt too quickly. Who’d want that in their drink?

So, here’s a device that can make ice spheres using just gravity, in under a minute.

The simple aluminium mold isn’t powered by any heat engine. It simply works by pressing the ice cube and conducting heat really fast. Also, using the perfect amount of pressure so that it doesn’t crack the cube. It works because aluminium has a high thermal conductivity. 

The end result is a perfect ice sphere made out of an ice cube in under a minute. No heating involved.

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