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Lithium-ion Battery Degradation

Here is a pretty good discussion (if a bit long winded) of battery life in BEVs. It also explains a lot about why batte...
22 comments posted 4yrs
posted by gnuarm.deletethisbit
22 comments posted 4yrs posted by gnuarm.deletethisbit

Technical Manual

I need to prepare some sort of technical manual that would provide a means of debugging a particular board. I was origi...
22 comments posted 4yrs
posted by gnuarm.deletethisbit
22 comments posted 4yrs posted by gnuarm.deletethisbit

Error correction in short packet.

Hi all I have serial data in 14 byte packets on which I'd like to detect and correct errors. Two bit errors would be ni...
69 comments posted 4yrs
posted by clive
69 comments posted 4yrs posted by clive

M C Escher Energy Solution

I was discussing regenerative braking and realized, we'd have no problem with energy shortages in an M C Escher world....
6 comments posted 4yrs
posted by gnuarm.deletethisbit
6 comments posted 4yrs posted by gnuarm.deletethisbit

hacking 6G made simple

hacking 6G made simple: https://www.sciencedaily.com/releases/2022/05/220516104638.htm
7 comments posted 4yrs
posted by pNaonStpealmtje
7 comments posted 4yrs posted by pNaonStpealmtje

Looking for IC

SOIC-8 3-line Part marking: 83433 IBZ (or 1BZ) W839EUE I used Dave's method of the transparent tape to read it. Worked g...
11 comments posted 4yrs
posted by Sophi.2
11 comments posted 4yrs posted by Sophi.2

Deconstructing a display

An old video display developed a leak (weird colors, looks like a pinpoint percussion damage), and got retired. The sta...
3 comments posted 4yrs
posted by whit3rd
3 comments posted 4yrs posted by whit3rd

OT: DeSantis has no idea where he's headed

DeSantis seems to be floundering around with the Disney tax district. He wants to hurt Disney so badly, he is willing t...
11 comments posted 4yrs
posted by gnuarm.deletethisbit
11 comments posted 4yrs posted by gnuarm.deletethisbit

OT : OT

58 new posts, nearly all the usual chicken-cluck dogpile by the usual idiots, zero related to the topic.
31 comments posted 4yrs
posted by jlarkin
31 comments posted 4yrs posted by jlarkin

Re: How it's made: heat sinks

> Lasse Langwadt Christensen snipped-for-privacy@f> > onsdag den 20. april 2022 kl. 23.29.25 UTC+2 skrev Ricky: > >> >...
3 comments posted 4yrs
posted by gnuarm.deletethisbit
3 comments posted 4yrs posted by gnuarm.deletethisbit

Cpanel Website Backups

Anyone use Cpanel for maintaining their web site? I did a backup a few months ago and saved a "full" backup along with...
0 comments posted 4yrs
posted by gnuarm.deletethisbit
0 comments posted 4yrs posted by gnuarm.deletethisbit

The Twins Paradox in Relativity

It turns out there is a long history, with many parallel explanations: . Joe Gwinn
26 comments posted 4yrs
posted by joegwinn
26 comments posted 4yrs posted by joegwinn

5 mohm resistor

https://www.dropbox.com/sh/ha6eyf28soy5p2g/AADnz3bK-yJAoDIIJs9g1LYDa?dl=0 This one is solid metal (manganin?) machined...
18 comments posted 4yrs
posted by jlarkin
18 comments posted 4yrs posted by jlarkin

BJT behaviour at ridiculously low current levels

Hi, I am experimenting with ultra-low power ideas and I was able to simulate a 30Hz relaxation oscillator running at 45...
72 comments posted 4yrs
posted by bombald
72 comments posted 4yrs posted by bombald