I'm an actual battery scientist. They wear out much more slowly if you don't charge them all the way
TonyTonyChopper
joined 2 years ago
Typing with both hands? Believe it or not, straight to hell
So easily forgotten when modelling moose populations
Eye biometrics scan the iris or the retina, not the cornea (which is transparent)
crop off the nobody part
This research was focused on the lithium battery anode. Ideally we could just put a chunk of lithium in there but the stripping and deposition chemistry doesn't work well long term. Modern batteries use graphite instead. But of course you waste a significant amount of cell volume and weight with all of that carbon, and the potential is lower than Li metal. Alloying Li with silicon gets you properties more similar to Li.
So this paper talks about their efforts to make LiSi more viable as an anode. They gave it a coating to protect it from electrolyte side reactions and created a new gel electrolyte formation reaction. The capacity they report isn't remarkably higher than what's out there now since the cathode is the heaviest part of the cell.
As to the results I do have to say 60% capacity retention after 200 cycles is not nearly good enough for real world use. And I have no clue where they got the "1000 mile range" headline from.
😏 thank you
I bought it here https://keebd.com/en-us/products/ergodash-keyboard-kit?variant=41478496616600 It comes with PCBs, a simple case, and all the necessary components apart from the controllers which I got a better deal for a 3 pack of clones on Amazon. They also carry the optional underglow LEDs and Arduino pro micro hot swap headers and pins.
For these DIY keyboards you could also just buy PCBs on their own and work out a parts list from the build guide. Maybe 3D print a case for it.
I also used Mill-Max sockets for the switches so I can remove them anytime, Durock Silent Shrimp switches, and DSA Hana keycaps.
"This action is forbidden. The incident has been reported."
And then MS sends goons to your house to break your legs
More efficient compact X-ray generators would be pretty huge for science work. We run the diffractometer in my lab at 2 kW and it still takes hours to get a good quality scan
Yes. They drive me nuts. My family had a PC that would buzz whenever you moved the mouse. We have a bunch of cheap LED lamps in my apartment and every one has an especially loud transformer.