Fridges waste a lot of energy cooling down after the door has been opened,
says Hitachi of Japan. So in its latest fridge, the firm has placed a small door
within the big door for those often-taken-out items, such as milk. In tests, the
idea has cut the amount of escaping cold air by 90 per cent, Hitachi says.
More from New Scientist
Explore the latest news, articles and features
Technology
Test moderators use AI-generated writing to judge literacy standards
News
Mind
THC in cannabis may reduce nightmares in people with PTSD
News
Environment
Fishers detonate a bomb every hour on one Indonesian coral reef
News
Environment
How bad is the UK drought and how long will it continue?
News
Popular articles
Trending New Scientist articles