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If you looked into a modern acer notebook (i bought mine in 2025-09), you will see thick black stickers on many components, like the NVME SSD and SO-DIMM modules. You may wonder why your SSD reached about 108°C (with and without the sticker) and the unmodified stock SO-DIMM 87°C with the sticker, with ambient air [ ]
Ive seen many fireflies in teh woods in the last days, wondered if they can be filmed. When i search for firefly video, 100% of results is fake and computer generated. Was in the woods yesterday and took 2 videos (Fireflies video1 and Fireflies video2) from the fireflies there. So quite doable, iam sure one [ ]
Whats the fastest approximation of log2() ? simply reading a floating point value as if it was the corresponding integer. Strictly in C one of course has to use union not a cast to avoid undefined behavior. But the operation is better described by casting a pointer from type *float to *int32_t. The same works [ ]
Ubuntu 20.04 soon will be unsupported outside ESM so i thought, ill just upgrade that one box quickly theres little special on it, it should go smoothly. This box is not critical either. It all looked good until snap was updated. That simply errored out, apparently it wanted to connect to the network in the [ ]
With blockchains making sure the transaction you sign is what you wanted to sign is critical. So professionals use a multi signature gnosis safe (which is a webapp in the WEB BROWSER) to build a transaction. Then verify it by looking at said WEB BROWSER. And then have multiple independant people with hardware wallets [ ]
I think this one is just funny, but iam not sure its funny for non geeks/non math people
I had a few minutes time and so i tried asking chatgpt some question about factorials. Iam impressed by chatgpt but then again, iam not. It could point me to stirlings approximation and the extended variant but then the extended variant with few terms is not the best approximation for its complexity. And lets rather [ ]
Just 18 days ago I asked if chi is a ponzi?. Today we seem to have gotten an answer:
Intro A while ago on some random place, someone mentioned chi as being a great way to make money. Obviously things that are recommended on random places tend to be great ways to loose money. But somehow it made me curious in what way exactly, so i made a note. And a few weeks later [ ]
Ive yesterday updated a 20.04 LTS ubuntu to 22.04. I expected it to just work but do-release-upgrade failed with something like The upgrade has aborted. The upgrade needs a total of 6XY M free space on disk /boot . Thats not nice of ubuntu considering the default /boot/ partition size was 500 M when this system [ ]