What’s nearly as strong as concrete, but floats on water? Pykrete! Pykrete is made up of 86% frozen water and 14% wood pulp (such as sawdust or paper). It’s easy to make, durable and strong. That’s ...

Jem has set himself another challenge - and this time it requires your help. Difficulty: low Find a suitable material and make your pykrete bars. Time/effort: The bars should be frozen for at least ...

How do you top building the world's largest ice dome? Well, if you're the Eindhoven University of Technology, you build a 40-meter (131-ft)-high model of Barcelona's Sagrada Familia basilica ... and ...

Winston Churchill had a project to produce a 2.2 million ton pykrete (ice and wood pulp) aircraft carrier that would have been 1200 meters long and 180 meters wide. This would have made it 3.5 times ...

Project Habakkuk was a wartime proposal to build an enormous aircraft carrier from “pykrete,” an ice-and-wood-pulp composite pitched as strong, slow to melt, and difficult to sink. The transcript ...