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Joined 2 years ago
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Cake day: October 4th, 2023

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  • The recent technology connections video cited a lot of statistics on this topic, and at least household fires are primarily caused by overcurrent, not by arcing.

    You probably know more than me — I only studied compsci with ee as minor — but from my personal experience, I’ve seen many cases where overcurrent caused damage, burns or fire, but I can’t remember a single case where arcing caused actual damage.

    Even in cheap chinesium powerstrips, the primary cause of fires is overcurrent due to AWG 22 copper clad iron wire, not arcing. (Though the switches usually weld themselves together after a few dozen uses).






  • Sure, it’d be a solution for five minutes until someone delids the secure enclave on the gaming card, extracts the keys, and builds their own open source hw alternative.

    High-performance FPGAs are actually relatively cheap if you take apart broken elgato/bmd capture cards, just a pain in the butt to reball and solder them. But possibly the cheapest way to be able to emulate any chip you could want.









  • If you’ve got 14 billion years, a theft takes a minute, then you need 53 recursion levels of binary search to find the moment of the theft. (14 billion years can be split into about 7.3e15 1-minute segments, 53 levels of binary search allow you to search through 9e15 segments)

    That means OP assumed that it’d take 1 minute to decide whether at a certain still frame the theft had already occured or not, to compute the new offset to seek to, and the time it’d take to actually seek the tape to that point.

    Not an unreasonable assumption, but a very conservative estimate. Assuming the footage is on an HDD and you’ve got an automated system for binary search, I’d actually assume it’d take 5 seconds for each step, meaning finding a 1min theft on 14 billion years of footage would take 5 minutes.






  • First off, city streets are by law limited to 50km/h (30mph) in Germany unless the road is physically blocked off from pedestrian access and is designated a motorway. And even that speed is only allowed for major thoroughfares, most city streets are limited to 30km/h (18mph), and many cities are currently arguing for banning 50km/h on city streets entirely.

    Streets faster than that need to be physically separated, well-lit, need to have an additional lane or frequent additional locations to park broken down vehicles and need significant setbacks so you can see potential obstructions entering the road early enough to brake in time.

    So what I’m taking from this is that the road design where you live is dangerous and substandard.

    Now, to the personal appeal:

    I did take a defensive driving course before I even started driver’s ed, and it was actually the reason I decided not to get a car. Nowadays I do everything — including weekly grocery runs — by bicycle instead.

    The average speed in cities is 15-20km/h, primarily caused due to traffic jams and waiting times at stoplights. I can achieve or beat those speeds on a bicycle just as well, without the stakes being as high. If I make a mistake as a driver, it’s going to cost lives. If I make a mistake as a bicyclist, no one’s going to die. And considering the environmental footprint as well as the monetary costs in terms of road tax, fuel prices and maintenance, it’s definitely worth it.

    Even if sometimes, people try to kill me by overtaking me far too close while speeding.