Not a stitch of it is seen or known about by any of their teachers.
The other side of the coin is the over-active parents who go in to argue an A-. Sure, they're involved, they care, and they want their kid to succeed, but are they doing anything to achieve those goals? Nope.
AFAIK, not a single nuclear power station has yet been decommissioned and cleaned up anywhere in the world
http://en.wikipedia.org/wiki/T... Still has the "what do we do with nuclear waste?" problem, but it was decommissioned anyway.
The hammer quite a bit. The modern hammers with sprung steel heads, claws (and other attachments) and ergonomic handles especially those designed to mitigate RSI have in fact changed significantly.
And how many of those would you consider incremental improvements of the same fundamental design and how many of those were on the level of trying to put the hammerhead in the middle of the handle?
The first rule of intelligent tinkering is to save all the parts. -- Paul Erlich