calvin4224
calvin4224 t1_j9stugf wrote
Reply to comment by Alphageds24 in What will be the environmental impact of de-orbiting 42,000 Starlink satellites every five years? (Explanation in post) by OvidPerl
Heavy metals in the water may be really bad for animals, e.g. the European oysters which are nearly extinct in the copper-rich (tiny particles) north Sea. We should care about everything we do to our planet. You don't have to care about everything yourself of course. But don't dismiss it as unimportant just because you don't have the energy to care.
calvin4224 t1_iylwro2 wrote
Reply to comment by whackamolasses in Better Than Fans? New 'AirJet' Chip Promises To Overhaul Laptop Cooling by Avieshek
r/onlyfans
..risk it!
calvin4224 t1_iy1cwpz wrote
Reply to comment by trichomesRpleasant in News Release: NREL Creates Highest Efficiency 1-Sun Solar Cell - 39.5% efficiency by TimeSpentWasting
Concentrated solar is measured in suns. So if I use a mirror or a lens of 2 m^2 area and direct this light on on a 1m^2 solar panel, people talk of in this case two suns reaching the solar panel. The panel still has a similar efficiency, but double the power output due to more light shining on it. I simplified a bit but thats the idea.
Type "concentrated solar" into an image search engine, it's fascinating!
calvin4224 t1_iy1c9ba wrote
Reply to comment by jjayzx in News Release: NREL Creates Highest Efficiency 1-Sun Solar Cell - 39.5% efficiency by TimeSpentWasting
Um where do you get those numbers from? Shockley–Queisser limit is 33% for single junctions, no?
calvin4224 t1_iy1c1rw wrote
Reply to comment by Uffffffffffff8372738 in News Release: NREL Creates Highest Efficiency 1-Sun Solar Cell - 39.5% efficiency by TimeSpentWasting
Aye, there is a big difference between what's technically possible in the lab and what is viable for mass production.
calvin4224 t1_iy1bsw7 wrote
Reply to comment by a11en in News Release: NREL Creates Highest Efficiency 1-Sun Solar Cell - 39.5% efficiency by TimeSpentWasting
The Shockley Quiesser theoretical limit for single junctions is at ~33%.
calvin4224 t1_iwror1m wrote
Reply to comment by Ok-disaster2022 in AMD Now Powers 101 of the World's Fastest Supercomputers by Avieshek
I don't think that's how nuclear fission works.
Also, 4x250 Watts will run your kettle but not a ship :P
calvin4224 t1_iwgfzlw wrote
Reply to comment by Gnash_ in AMD Now Powers 101 of the World's Fastest Supercomputers by Avieshek
irl a nuclear Generator has around 1 GW (1000MW). But 30MW is still about 6 Land based Wind turbines running at full load. It's a lot!
calvin4224 t1_ja76kte wrote
Reply to comment by 0000000000000007 in PsBattle: This man inside latex on a trampoline. by MississippiJoel
Dan the man. The guy.