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  1. Bornach @bornach ·

    Two rechargeable lithium polymer batteries, one from a disposable vape device and the other from a rechargeable e-cigarette with interchangeable atomizer and tank modules.

    Can you guess which battery came from which device?

    #ecig #vape #ecigarette #lithiumpolymer #battery
  2. Bornach @bornach ·

    Lucas Clarke glass blowing a Klein Bottle
    youtu.be/cdLXvJ8wFY4

    #numberphile #youtube #topology #glassblowing #craft #kleinbottle
  3. Bornach @bornach ·

    Maybe this will give me some ideas on what to do with all the batteries I've been finding outside
    instructables.com/contest/batt

    #batteries #instructables
  4. Bornach @[email protected] ·

    Something must be wrong with that Emergency Alert test thing on my phone. The alarm was quite loud but the voice message that followed was barely audible.
    #EmergencyAlertTest #EmergencyAlert

    #emergencyalert #emergencyalerttest
  5. Bornach @[email protected] ·

    [Matt Parker] on the completion of The Great Collatz Collab in which hundreds of schools picked 3 digit numbers to test the Collatz Conjecture, which were then collated into a single large map
    youtu.be/lnpFqdQJAFA

    The project resources including downloadable map:
    think-maths.co.uk/collatz-coll

    #youtube #CollatzConjecture #Collatz #maths #mathematics #STEM #mathstodon #mastomaths #math

    #youtube #collatzconjecture #collatz #maths #mathematics #stem
  6. Bornach @[email protected] ·

    @cstross @michael_w_busch
    That's like saying the British railway mania left behind a transport backbone that has since served the public good unlike the Dutch tulip bubble, yet it was the former that bankrupted and destroyed the lives of many more people when the bubble inevitably burst
    youtu.be/D8d6cffG5kk
    #TulipMania #RailwayMania #Bubble #BoomBust

    #tulipmania #railwaymania #bubble #boombust
  7. Bornach @bornach ·

    @laimis @davidbisset
    Those using /#chatgpt continue to expose themselves to legal risks.
    githubcopilotlitigation.com/
    If Matthew Butterick wins the lawsuit, would anyone who used copilot have to open source their code, I wonder?

    ServiceNow and Hugging Face have a competing coding assistant called :
    "The code-generating , which was trained on source code that the companies licensed, is part of the companies' BigCode Project,"
    infoworld.com/article/3695530/

    #copilot #github #ai #starcoder #llm
  8. Bornach @[email protected] ·

    @dr2chase @cstross @glindsey

    The #OpenAI founders also share the same ideology as #FTX founder #SBF
    youtu.be/Lm0vHQYKI-Y
    #EffectiveAltruism #Longtermism #cryptoscammers

    "Dario Amodei, then research director at OpenAI...Amodei has since left OpenAl to co-found Anthropic...an “AI safety and research company.”... received... funding from other EA adherents, including Sam Bankman-Fried, the founder of recently collapsed cryptocurrency exchange FTX"
    techpolicy.press/chatgpt-safet

    #openai #ftx #sbf #effectivealtruism #longtermism #cryptoscammers
  9. Bornach @bornach ·

    @f4grx @aallan
    youtu.be/-UyM6jJzuVw

    #titanic #violinists #youtube
  10. Bornach @[email protected] ·

    "Twitter’s staff spent years trying to protect the platform against impulsive ranting billionaires — then one made himself the CEO."
    nymag.com/intelligencer/articl

    This is a recap of everything that happened since the #TwitterTakeover, staff firings, mass resignations, chaotic rollout of new features, outing staff involved in moderation decisions, etc

    #ElonMusk #Twitter #ExtremelyHardcore #RIPTwitter

    #twittertakeover #elonmusk #twitter #extremelyhardcore #riptwitter
  11. Bornach @[email protected] ·

    I asked #BingChat (creative) to write a nursery rhyme about a billionaire visiting the Titanic wreck in his submersible

    The chatbot generated something a bit dark

    Notice that I made no mention of #Titan, #StocktonRush, or #OceanGate and it doesn't look like it did a specific Internet search for the prompt

    #generativeAI #LargeLanguageModels

    #bingchat #titan #stocktonrush #oceangate #generativeai #largelanguagemodels
  12. bornach @[email protected] ·

    @pentronik
    SDF is a function with 2D or 3D input, so any resources on plotting contour maps of multivariable functions would be relevant
    khanacademy.org/math/multivari

    #genuary8 #signedDistanceFunction #ContourMap #KhanAcademy

    #khanacademy #contourmap #signeddistancefunction #genuary8
  13. bornach @[email protected] ·

    @pentronik
    SDF is a function with 2D or 3D input, so any resources on plotting contour maps of multivariable functions would be relevant
    khanacademy.org/math/multivari

    #genuary8 #signedDistanceFunction #ContourMap #KhanAcademy

    #khanacademy #contourmap #signeddistancefunction #genuary8
  14. bornach @[email protected] ·

    @pentronik
    SDF is a function with 2D or 3D input, so any resources on plotting contour maps of multivariable functions would be relevant
    khanacademy.org/math/multivari

    #genuary8 #signedDistanceFunction #ContourMap #KhanAcademy

    #khanacademy #contourmap #signeddistancefunction #genuary8
  15. bornach @[email protected] ·

    @pentronik
    SDF is a function with 2D or 3D input, so any resources on plotting contour maps of multivariable functions would be relevant
    khanacademy.org/math/multivari

    #genuary8 #signedDistanceFunction #ContourMap #KhanAcademy

    #genuary8 #signeddistancefunction #contourmap #khanacademy
  16. bornach @[email protected] ·

    @pentronik
    SDF is a function with 2D or 3D input, so any resources on plotting contour maps of multivariable functions would be relevant
    khanacademy.org/math/multivari

    #genuary8 #signedDistanceFunction #ContourMap #KhanAcademy

    #khanacademy #contourmap #signeddistancefunction #genuary8
  17. Bornach @bornach ·
    CW: Naughty words read from ROM chip

    Ben Eater reverse engineers the TV censoring device that was recently featured by @TechConnectify
    and uncovers the list of naughty words and their more family friendly substitutions
    youtu.be/a6EWIh2D1NQ

    #television #electronics #gadget #reverseengineered #arduino #spreadsheet
  18. Bornach @bornach ·

    Derek Muller [] explains the history, strategies and innovations of the maze solving competition
    youtu.be/ZMQbHMgK2rw

    #veritasium #micromouse #robotics #making #electronics
  19. Bornach @bornach ·

    @jamesoff @danieldurrans
    Tim Hunkin has a third series of "The Secret Life of Components" starting this Thursday
    youtu.be/Za-GyTt729M

    #pneumatics #programmablelogiccontrollers #holecutting #making #solenoids #relays
  20. Bornach @bornach ·

    The primary of this mains that was in a power brick from the 1990s seems to be broken internally.

    What else can I use it for? Should I attempt to recycle the magnet wire? Try to rewind the laminated core?

    The other two transformers seem fine. They both came from digital clocks.

    #transformer #making #electrical #salvage #components #inductor
  21. Bornach @[email protected] ·

    #BingChat (precise) has concluded that P=NP

    I asked it to write a Python script that when given a graph where there are no more than 5 edges for every vertex, it returns the length of the longest path that visits each vertex no more than once. Then lifted the edge count restriction.

    In both cases it claimed polynomial time complexity to solve an NP-hard problem

    #ComputerScience #complexity #PequalsNP #NPhard #NPcomplete #python #GraphTheory

    #bingchat #computerscience #complexity #pequalsnp #nphard #npcomplete
  22. Bornach @[email protected] ·

    Hope [Wendover Productions] doesn't get their channel hijacked by Musk fanboys and turned into one of those "Tesla Live" cryptocurrency scam streams as that would be embarrassing

    How Tesla fumbled...
    youtu.be/xpUIZ32n9nw
    #YouTube #Tesla #ElectricVehicles #ElonMusk #China #CyberTruck #FullSelfDrive

    #youtube #tesla #electricvehicles #elonmusk #china #cybertruck
  23. Bornach @bornach ·

    I made a flapping butterfly actuated by a hand wound coil of magnet wire in a strong magnetic field.

    After destroying one 555 timer IC (probably by a high voltage inductive spike) I decided to incorporate a PC817 in the driver circuit.

    #optoisolator #mosfet #kinetic #electronics
  24. Bornach @bornach ·

    @[email protected]
    A4
    Same here. Everything on my YouTube/ Hackerday / Instructable accounts were imagined first. But I guess my called upon my imagination the most
    youtu.be/zqEtR9f9NLo

    #raspberrypi #piday #spigot #makershour
  25. Bornach @bornach ·

    I'm afraid that I won't be able to salvage these lithium batteries I found in the street while walking back from town

    #lithiumpolymer #vapepen #litter
  26. Bornach @bornach ·

    [DroneBot Workshop] guide to using operational amplifiers
    youtu.be/_HHxV-7alwE

    Might come in handy if you're working on a project for the @hackaday opamp challenge
    hackaday.io/contest/190312-op-

    #opamps #electronics #operationalamplifiers
  27. Bornach @bornach ·

    Casio used sacrificial resistors in case the wrong voltage was plugged in. That's a useful trick to remember - I still have my Casiotone MT-205 which I've been meaning to hack and circuited

    #retroelectroworkshop #casiotone #mt100 #synthesizer
  28. Bornach @bornach ·

    Found this broken wrist band in the bushes. Cut it open to find a black disc inside.

    Probably an RFID key for a gym locker of some kind. Wonder which health and fitness business uses these.

    #rfid #locker #wristband
  29. Bornach @bornach ·

    @concretedog @NormanDunbar
    I have 10pcs of those modules too. Problem is I now have over 60 unprotected batteries and I keep finding more. Might have to parallel them up or make my own BMS
    youtu.be/qRVEJjk5B_g

    #batterymanagementsystem #youtube #electronics
  30. Bornach @bornach ·

    @concretedog @gsuberland

    BMS for multi cell battery
    youtu.be/kDjUQVwbmik

    Or the components for a BMS if you want to roll your own
    youtu.be/qRVEJjk5B_g

    #youtube #bms #batterymanagementsystem #lithiumion #battery #lithiumpolymer
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