A new technology (developed in Germany and Europe) uses shape-memory metals that heat up when stretched and cool down when released. This cooling effect would make refrigerators and air conditioners much more efficient.
A new technology (developed in Germany and Europe) uses shape-memory metals that heat up when stretched and cool down when released. This cooling effect would make refrigerators and air conditioners much more efficient.
if they start being vague like that, i’d be cautious
Not really? No greenhouse gases evolved, potentially lower GWP