News for hackers. Stuff that matters.

A comment on A Norwegian town built a giant mirror to deflect the sun (2017). Parent comment

Re:A Norwegian town built a giant mirror to deflect the sun ... by nitrogen on Tuesday May 14, 2019 @07:43PM (#19914964)
How much traditional lighting could that 40x20 panel replace, and what is the expected lifespan? (Also is the spectrum close to a true black body?)
[ Parent | on HN ]

There are no comments on this comment yet.