Crushing it

Look: “Super jelly” experiment defies the laws of physics

This is essentially Flubber — but real.

Zehuan Huang

Tatiana Maksimova/Moment/Getty Images

Hydrogels are fascinating materials, able to stretch without breaking and absorb huge amounts of liquid.

Shutterstock

These unique properties mean hydrogels are used in a diverse array of products, including wound dressings, diapers, and more. But hydrogels do have their limitations.