Monday, August 29, 2016

Small floating solar device boils water

An ingenious device using basic physics boils water in sunlight. From an article in Ars Technica:
"Tests in the lab and on the MIT roof showed that, under ambient sunlight, the absorber warmed up to 100 degrees Celsius in about five minutes and started making steam. That’s a first."
A good situation to work out the physics involved and discuss. (Photo - MIT)
Should be possible to make a less efficient copy of this device without the commercial selective absorber coating.