Bouncy hydrogels on a hot plate

Science & Technology

Bouncy hydrogels on a hot plate

Postby CielOnTap on Mon Jul 24, 2017 3:50 pm

Getting people to watch an online video because it looks interesting helps with its popularity. Now combine curiousity with what you are seeing and then happen to
notice what is causing the interesting part-sometimes you find out something new.

A scientist who saw a video of hydrogels bouncing on a hot plate was keen to find out how the mostly water objects were able to bounce for several minutes. Now he thinks a new battery for robotics may be possible as a result of figuring out the bouncing part.

It all started when a Ukrainian programmer and aspiring rapper dropped a handful of hydrogel balls on his piping-hot pancake griddle. The beads, used by gardeners to hydrate plants because they're about 98 percent water, began to bounce. The man recorded their jig of little hops for several minutes, complete with the horrible screeching sounds the spheres emitted. More than a million people have viewed it on YouTube since late 2015.

The clip caught the eye of Scott Waitukaitis, an expert in the physics of soft materials at Leiden University in the Netherlands. He saw the bouncing balls while scrolling on his cellphone at a scientific conference.

"They come to life, essentially, and scream," he said. His delight gave way to curiosity, and he decided to replicate the viral video in the lab, using high-speed cameras to figure out why the balls could bounce for so long.
80s pop music fan here!
User avatar
Moderation Team Leader
Posts: 10185
Joined: Tue Aug 19, 2008 3:39 pm
Location: Canada

Return to Science & Technology

Who is online

Users browsing this forum: No registered users and 18 guests