I mean no harm.

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Joined 1 year ago
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Cake day: July 4th, 2023

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  • They could be very well using the earth’s orbit around the sun to get better resolution - two data points from opposite sides of the orbit. What I know is that the largest “virtual” radiotelescope is literally the size of earth. The data points are synced with atomic clocks (or better), and a container of harddrives gets shipped into a datacenter to be ingested. Thats hundreds of streams (one per antenna) of data to be just synced up, before the actual analysis even can begin. (I’m just guessing after this) At this point, you have those hundreds (basically .wav files) lined up at timepoints they were sampled (one sample, one timepoint column). So row by row, so you can begin to sort out signal phase differences between the source rows.

    I.e to put it shortly: an image is not taken, it is inferred and computed. Not that you even could in the first place, it’s a blackhole after all.





  • I have learnt coffee oxidizes quite fast giving that horrible burnt taste, which even milk won’t hide. The longer it has been in a open-to-air-pot, the worse the taste gets. Storing in an air-tight container (thermos) it stays “ok” for days. So actually, I think all such servings from the coffee shops are thus inherently worse than brewing your own coffee.

    (There are no starbucks in my country, but I think McDonald’s coffee really is somehow heated past 100*C and it’s the first sip away to burn your mouth, so you wouldn’t taste it anyway.)




  • I put too way too much effort in this reply… Yes… it’s nerve racking, especially if you are resorting to BIOS flashback to boot the CPU on an older (new) board.

    Can’t get visuals (except maybe leds/indicators on the motherboard itself) when your CPU is incapable of accessing the ram or the devices yet. All external devices normally communicate through the RAM. (And by external, I mean not on the CPU package) Yet, the CPU has to solve out this chicken-and-egg problem of how to progress from the cold-boot without knowing what external RAM is installed. There are plethora of timing/clock-cycle/voltage settings for one stick of ram, which are tested on POST. Establishing sane DDR5/4 parameters is non-trivial. (I think it is order of +20!, twenty factorial: 2432902008176640000, if there were no starting point of XMP, JEDEC etc.)

    I use hand tuned settings for DDR4, and on cold boot, the BIOS adjust the settings which I didn’t forbid it to do. Unless I unplug the PSU from the wall, the BIOS won’t retrain the memory again. I suspect my settings still aren’t 100% stable. (over period of years) Non-cold-boot assumes the ram works 100% same on each power up. If some OC setting drifts past a threshold once the system is heat soaked or receives more EMI interference, this could provoke a crash/BSOD etc. in absurd theory having a busy wifi router next the ram could cause the bios to select more robust/conservative settings to counter the EMI interference. Would be fun to know, if this would be true.




  • Finland’s blank NATO papers were kept in a safe (30 years figuratively?) and as soon as the war(s) started to cause us harm, they were pulled out of the safe and ratified.

    From the news at the time of NATO ratification: “Look in the mirror” - Sauli Niinistö

    From the news of the last two weeks: Now the eastern border is pretty much closed for the foreseeable future.

    My armchair stance: If the Soviets angered nearly 4 million Finns in the 1940s who had only pitchforks and cows and the result was 126 875 dead and 188 671 wounded Soviets. [*](https://fi.wikipedia.org/wiki/Talvisota) Now there is a nation of +5 600 000 grumpy Finns with access to modern weaponry and a bitter memories of the past…

    I don’t know what the russian leaders are hallucinating trying to anger us more? :P