bl0rq
bl0rq t1_j1wnl7r wrote
Reply to comment by deus_ex_platapus in Bonded leather office chairs will only last about a year & then you have a large piece of trash. by temp225566
I am sitting in an Aeron that was bought by a startup in the first dot-com bubble! Replaced gas shocks and arms and she is good until the next tech bubble!
bl0rq t1_is67xjc wrote
Reply to comment by beatthestupidout in NASA has invented a new type of high-performance battery that researchers claim could be used to power fully electric airplanes. by phife_is_a_dawg
Modern jet engines are closer to 50%. And yes fuel pumps and whatnot have mass too. But so do the supporting things for the electric version. A electric motor about equal to a 787 engine output weighs at least as much. And both it and the battery would need cooling.
> The batteries are catching up in real terms faster than a simple comparison of densities would suggest
They are not. They are dense enough for many things (commuter cars) but not airplanes.
bl0rq t1_is3y16g wrote
Reply to comment by RandomlyMethodical in NASA has invented a new type of high-performance battery that researchers claim could be used to power fully electric airplanes. by phife_is_a_dawg
For further comparision: jet fuel is about 12,000 Wh/kg.
bl0rq t1_j26a1mi wrote
Reply to comment by Abrham_Smith in Help drilling a hole through kitchen countertop & flange of undermount sink for a water filter by [deleted]
I have a plug similar to this but on a light. It comes on randomly. Not often but a few times a year. Hopefully this one doesn't have that "feature"!