BobTail lockbolt

How much so-called "hot" exhaust could be usefully captured for other heating purposes (domestic/commercial) or for growing crops?

GaN NBE is about 365 nm but when it make composition with the %Al as AlGaN then below 365 line edge even deep UD band it can emits. So the developed...

There are thousands of wind turbines (generally performing poorly economically). That they still need subsidy and constraint payments is a disgrace.