anfractuosity

9 ms·

1. 91.▲
   by anfractuosity 2y ago

   Would an 'explosively pumped flux compression generator' disrupt electronics within a drone? Also do many drones use GPS / dead-reckoning and follow pre-guided paths, to avoid need for comms. Came across - https://
2. 92.▲
   by anfractuosity 2y ago

   Very cool, reminds me a bit of two Tom Scott videos (these ones do use displays though, but combined with little model worlds) * https://www.youtube.com/watch?v=AcQifPHcMLE - 1970s tank simulator drives through a tiny worl
3. 93.▲
   by anfractuosity 2y ago

   Very interesting, will have to read that properly, the results look impressive. I came across this paper 'Eye of Sauron: Long-Range Hidden Spy Camera Detection and Positioning with Inbuilt Memory EM Radiation' recently, which I th
4. 94.▲
   by anfractuosity 2y ago

   Curious about the max frequencies on the GPIO pins since I believe it drives them with an RP2040. Not actually sure how the RP2040 interfaces with the Intel chip though.
5. 95.▲
   by anfractuosity 2y ago

   Thanks, that's very interesting, bookmarked! I found https://github.com/thomashiemstra/fred whilst searching, which also uses dynamixel motors, but very expensive ones. It does look very smooth motion-wise though!
6. 96.▲
   by anfractuosity 2y ago

   Regarding the arm, are you thinking of a particular kit? Those servos look really interesting, so you can read their position via a UART type interface? I've only played with cheap PWM servos before.
7. 97.▲
   by anfractuosity 2y ago

   A robot arm is fun, I assembled a 6 DoF one with metal parts and hobby servos that cost around £70 if I recall correctly. I find it kind of interesting how because hobby servos are used, which don't have encoders on, when you turn it o
8. 98.▲
   by anfractuosity 2y ago

   I've been looking for robots recently that work with Scratch. I found one called VinciBot that looks kind of interesting - https://www.youtube.com/watch?v=BftyB954_r4 I like the fact it can draw (it doesn't look
9. 99.▲
   by anfractuosity 2y ago

   Thanks, I didn't realise that regarding the 10 minutes/fastest run.
10. 100.▲
    by anfractuosity 2y ago

    I'm not sure to be honest. http://rfpose.csail.mit.edu/ is something I've come across before to detect pose of a human behind a wall. Just found https://www.youtube.com/watch?v=IVpXeO0DYDQ - &quo
11. 101.▲
    by anfractuosity 2y ago

    Maybe the mice could use mmwave to possibly see through maze walls. Or use a little 360 degree camera on a pole. I assume this would be classed as cheating though. Sounds a fun competition :) Looking at the Veritasium video they're c
12. 102.▲
    by anfractuosity 2y ago

    I came across potassium nitrate + water being used for making things cold - https://cordis.europa.eu/article/id/36036-making-things-cold... . Wonder if that could be used too?
13. 103.▲
    by anfractuosity 2y ago

    If only we could train the humans like the crows. Also - https://www.npr.org/2008/03/04/87878028/inventor-trains-crow...
14. 104.▲
    by anfractuosity 2y ago

    Interesting not seen a fridge that beeps like that before. Thought the article might have been going to be about removing the thermostat and adding your own temp controller. I did that and switched to using an electronic temp controller, f
15. 105.▲
    by anfractuosity 2y ago

    Out of interest, that mentions "Dedicated Win 3.11", so silly question, I assume you would be able to install DOS on a dedicated server, but might it be possible to run DOS/Win 3.11 on EC2 (I couldn't find a publicly acc
16. 106.▲
    by anfractuosity 2y ago

    There are session IPAs and pale ales, which are both lower in ABV probably 5ish or less ABV-wise, re. headaches and just as flavourful hop-wise.
17. 107.▲
    by anfractuosity 2y ago

    Huh, that's just a (poor) homebrew thing, however there's many decent homebrew shops that sell malt, nitrogen flushed hops etc. For example - https://www.themaltmiller.co.uk Additionally the UK also makes very high qu
18. 108.▲
    by anfractuosity 2y ago

    Haha. Tangentially - https://en.wikipedia.org/wiki/Send_Me_to_Heaven - "developed by Carrot Pop which measures the vertical distance that a mobile phone is thrown. Players compete against each other by seeking to
19. 109.▲
    by anfractuosity 2y ago

    I think it was something to do with one of the keyboard keys with an LED if I recall correctly, so possibly caps/numlock. Edit: seems I'm misremembering, just read - https://www.reddit.com/r/programmerchat&#x2
20. 110.▲
    by anfractuosity 2y ago

    This sounds rather fascinating - https://www.scientificamerican.com/article/dogs-detect-the-s... using trained dogs to detect seizures via smell. I assume there must be researchers trying to do this electronically too
21. 111.▲
    by anfractuosity 2y ago

    I've used Primo EM258 mics with an XLR adapter, they can pick up ultrasound, although the datasheet doesn't really mention this. See - https://zachpoff.com/resources/cheap-microphones-for-ultraso... Reading w
22. 112.▲
    by anfractuosity 2y ago

    Thanks a lot, will have a look, that sounds very interesting!
23. 113.▲
    by anfractuosity 2y ago

    Have you come across any ways to achieve that out of interest?
24. 114.▲
    by anfractuosity 2y ago

    Has anyone come across safe autodialers that don't just make use of bruteforce? Regarding electronic safe locks, I found the following videos really fascinating * https://www.youtube.com/watch?v=lXFpCV646E0 - Side chan
25. 115.▲
    by anfractuosity 2y ago

    Thanks for your links and information re. AM4,5.
26. 116.▲
    by anfractuosity 2y ago

    Thanks for that information re. the ARM based QNAP device. I'd not heard of that before. Would you mind pointing me to the u-boot code you mentioned? I think I'm right in thinking https://ukstore.qnap.com/catalog
27. 117.▲
    by anfractuosity 2y ago

    The DeskMeet X600 looks rather interesting especially re. the ECC RAM. You don't happen to know of anything similar with more than 2 x 3.5" drive bays per chance? I'm looking for a low powered device with ECC RAM to use as a
28. 118.▲
    by anfractuosity 2y ago

    You could also have a look for used bus signs on ebay, or I imagine scrap yards might have them too. I got a 14x20 display for around £50.
29. 119.▲
    by anfractuosity 2y ago

    I've used a Sensirion SCD30 (NDIR) sensor attached to a Pi running Grafana, which can be connected to via a web browser.
30. 120.▲
    by anfractuosity 2y ago

    Yeah, that's a good point, I've just been looking at - https://en.wikipedia.org/wiki/Single-photon_source#Character... which talks a little about what deterministic means with respect to a single photon sourc