Matthias random stuff
Matthias random stuff
  • Видео 279
  • Просмотров 40 471 534
How bad you get zapped before a GFCI trips
Experimenting with how much current it takes to trip a CFI, and how badly one would get zapped before the GFI goes off, while at the same time being careful not to zap myself any more than necessary to trip the socket.
I'm actually positively impressed by how and how fast the GFI performed
Просмотров: 58 056

Видео

Gochifix 3 in 1 scope meter review
Просмотров 27 тыс.2 месяца назад
Testing the GOCHIFIX Oscilloscope Multimeter Waveform generator 3in1 Gochifix 3in1 handheld Oscilloscope: amzn.to/3VN7klZ Discount code (25%off): 25MathRS
Fixing a benchtop power supply I built 37 years ago
Просмотров 49 тыс.2 месяца назад
This one is still my favourite benchtop power supply, but I broke it recently, so it needed some repairs. This was also a good opportunity to try out my new Gochifix 3 in 1 scope meter. Review on that meter coming soon Amazon link for scope meter, and discount code: amzn.to/3VN7klZ Discount code (25%off): 25MathRS
Solar panning camera build and eclipse shenanigans
Просмотров 51 тыс.2 месяца назад
Building a camera platform with a long lens on it to follow the sun and make a timelapse of the eclipse. Some interesting shots captured with it, and talking about light levels during the eclipse
Magnetic rotary encoder vs stepper motor accuracy
Просмотров 141 тыс.3 месяца назад
Testing some AS5600 magnetic encoders to see how accurate they are by rotating a magnet in front of them using stepper motors. The sensors are quite precise, but getting that magnet centered enough to get accurate readings is difficult. Yet at the same time, the magnetic encoder was able to measure step and microstep angle erros of the stepper motor. Also showing how to interface the AS5600 to ...
Making a solar eclipse projector
Просмотров 46 тыс.3 месяца назад
Lots of experiments with optics and lenses to project an image of the sun on a piece of paper to make it easier to watch the upcoming total solar eclipse. We happen to live in the path of totality.
How storing passwords let hackers bypass two factor authentication
Просмотров 74 тыс.4 месяца назад
Somehow my main channel got hacked again. Not sure how they got in, but I realized letting my browser store passwords was a big mistake that made it much easier for the hackers. Check if you are still subscribed to my main channel: ruclips.net/user/matthiaswandel
Washer motor wiring to reuse for projects
Просмотров 124 тыс.4 месяца назад
How to figure out what all the wires do from a random top-loading washing machine. These are simple resistance start induction motors that are easy to re-use. Motors for front loading washers are very different and much less practical for re-use.
Closed loop stepper motors -- very impressive
Просмотров 119 тыс.5 месяцев назад
I bought some "closed loop stepper motors". Experimenting with what they can do. I'm impressed by their power, ability to get back in sync, and less stringent real-time constraints for driving them. More tech stuff: woodgears.ca/tech
What killed the Blackberry
Просмотров 64 тыс.7 месяцев назад
The fall of Blackberry. Where did we go wrong? In retrospect, I suspect RIM (Blackberry) was already doomed even before its heyday. The entrance of Apple and Google changed the game, and RIM could not adapt fast enough. 00:00 In brief 00:26 1993 Start first modem module 01:25 1995 Start first integrated messaging device 02:18 1997 Start what would become blackberry 02:50 1998 Blackberry! 03:43 ...
Levitating pipe mystery solved
Просмотров 49 тыс.7 месяцев назад
A youtube comment lead me to try another experiment, revealing why the pipe ends up getting lifted up from suction. This is a follow-up about my Feynman sprinkler video with the levitating code and mysteriously levitating piece of straight pipe
Sucking down on this cone makes it rise, and Feynman sprinkler
Просмотров 114 тыс.7 месяцев назад
Trying to reproduce the Feynman sprinkler experiment, I tried a few more things, and then it got interesting. I love experimenting with fluid dynamics. I figured out why the straight tube would also lift up: ruclips.net/video/z3scTRJCm7w/видео.html
More uses for infrared camera -- Buildings, farming, machinery
Просмотров 25 тыс.7 месяцев назад
Black friday sale until Nov 27 2023 Links for USA TC001 (Android) www.amazon.com/dp/B0B7LMB22Q?maas=maas_adg_12430DC6282CCB112F752C7041BD8DB3_afap_abs&ref_=aa_maas&tag=maas 3% Discount Code:TC001CODE Price after discount: $210.03 TC001 (iOS) www.amazon.com/dp/B0BYHP8KM9?maas=maas_adg_9EDA5CD2807CFB3471D9DC8F797B78A2_afap_abs&ref_=aa_maas&tag=maas 3% Discount Code:TC002CODE Price after discount:...
Best heater to keep me warm at my desk
Просмотров 61 тыс.7 месяцев назад
Comparing different types of heaters and infrared heaters. Not all heaters are equally effective at directing the heat where you want. The big square on is from Sunkos (just google it) The wall mounted heater is from Dreo, model WH729S Search for "celing mount heater" for the black infrared heater.
Pi pico therapy timer and C vs. micro python
Просмотров 29 тыс.8 месяцев назад
The pico advance kit I talked about Available with or without a Pi Pico: www.elecrow.com/raspberry-pi-pico-advanced-kit-with-pico-board-32-modules-and-32-detailed-projects-lessons.html?idd=5 Building the box for the timer: ruclips.net/video/a_hX2JcwHBE/видео.html
Making radioactive balloons using Radon gas
Просмотров 56 тыс.9 месяцев назад
Making radioactive balloons using Radon gas
Your vision isn't what you think it is -- see for yourself
Просмотров 56 тыс.9 месяцев назад
Your vision isn't what you think it is see for yourself
Air flow: It's all about fan thrust
Просмотров 67 тыс.11 месяцев назад
Air flow: It's all about fan thrust
Calibrating my anemometer for measuring really low wind speeds
Просмотров 48 тыс.Год назад
Calibrating my anemometer for measuring really low wind speeds
Raspberry pi Pico programming in C -- microwave oven monitor and reminder
Просмотров 40 тыс.Год назад
Raspberry pi Pico programming in C microwave oven monitor and reminder
Dreo vs. Vornado air circulators
Просмотров 137 тыс.Год назад
Dreo vs. Vornado air circulators
ChatGPT: Its awsome... and it sucks. But still impressive
Просмотров 60 тыс.Год назад
ChatGPT: Its awsome... and it sucks. But still impressive
ex-Blackberry guy reviews Blackberry movie
Просмотров 82 тыс.Год назад
ex-Blackberry guy reviews Blackberry movie
What does an air fryer do?
Просмотров 72 тыс.Год назад
What does an air fryer do?
Ugreen PowerRoam 1200 battery power station test and review
Просмотров 55 тыс.Год назад
Ugreen PowerRoam 1200 battery power station test and review
Let the microwaves be free
Просмотров 115 тыс.Год назад
Let the microwaves be free
Blackberry trailer reaction and talking about RIM back in the days
Просмотров 74 тыс.Год назад
Blackberry trailer reaction and talking about RIM back in the days
I bought a scam energy saver and made it actually save energy!
Просмотров 405 тыс.Год назад
I bought a scam energy saver and made it actually save energy!
Rigol DS1202 Z-E review
Просмотров 43 тыс.Год назад
Rigol DS1202 Z-E review
We get slightly nearsighted at night, corneal aberrations, and stars
Просмотров 35 тыс.Год назад
We get slightly nearsighted at night, corneal aberrations, and stars

Комментарии

  • @johnouellette1098
    @johnouellette1098 33 минуты назад

    Informative and hilariously delivered. Well done!

  • @AMG19698
    @AMG19698 4 часа назад

    So its fake!!

  • @UncleSamFreedom
    @UncleSamFreedom 8 часов назад

    I never expected to wath a video about some being fascinated by normal windows but here we are i guess

  • @ThanhNguyen-rz4tf
    @ThanhNguyen-rz4tf 10 часов назад

    This is the type of video RUclips should recommend

  • @the_wanderful_life
    @the_wanderful_life 11 часов назад

    I want a wall mount version of this.... or maybe I just get wild and wall mount this model?

  • @fd0198
    @fd0198 13 часов назад

    we use the same principle in the fire service. when we use a fan to clear smoke out of a house we point the fan at the front door and make sure the cone of air covers the entire door. we open all the windows and close the doors except for one. when a room is clear we shut the door and open the next room. you can clear out a house in a matter of minutes. 😊

  • @duncanalderdice
    @duncanalderdice 13 часов назад

    You’re doing God’s work.

  • @mwganson
    @mwganson 19 часов назад

    Perhaps a remote sensor you can mount higher would be a useful accessory. Also need to be able to adjust auto sensitivity.

  • @ricardob5992
    @ricardob5992 День назад

    Ligit!! Thanks for making this video. I couldn't stop laughing.😂😂😂😂

  • @shitzhu16
    @shitzhu16 День назад

    Thanks fo this video.As a lay person I was wondering about thes gagets. How do these scammers get away with it?

  • @WildmanTech
    @WildmanTech День назад

    I was a palm pilot user and the blackberry was the only logical transition device.

  • @thebedroomshow9010
    @thebedroomshow9010 День назад

    so is there a point to a window fan at all? was looking into it but the need for any fan to be away from the window for it to be effective negates the whole point of the window fans

  • @jvh22a
    @jvh22a День назад

    Some reason this came on my feed! But I never thought being that far from the window wpuld give better results.

  • @albertancustomer4232
    @albertancustomer4232 День назад

    Very nice experiment. Thanks!

  • @Sparklelalala
    @Sparklelalala День назад

    what brand is that power station?

  • @BoppityBoopy
    @BoppityBoopy День назад

    Could you please simplify this for a senior living in a small room without air conditioning in a hot, dry climate? Do I buy the fan and put it 4 feet away from an open window? Does putting ice anywhere around the fan help? Thank you.

  • @criticalmass8272
    @criticalmass8272 2 дня назад

    Bernoullies principle! with the fan backed away it created a pressure zone, and air around the front of the fan is also pulled in, so you get much more volume of air

  • @rpnum1
    @rpnum1 2 дня назад

    What type of engineering [specialization] is this?

  • @AndrewHelgeCox
    @AndrewHelgeCox 2 дня назад

    What do you think of the video called "Dyson vs Cheap Fans - What RUclipsrs Missed"?

  • @nwlady1844
    @nwlady1844 2 дня назад

    Does the fan rotate from side to side and upward and downward at the same time? or you do choose one of the oscillating patterns? Did a great job of showing the dynamics of the airflow of these two units. What is the model number of the dreo? thank you

  • @b91sw
    @b91sw 2 дня назад

    <3 from Indonesia

  • @celecha
    @celecha 3 дня назад

    I was hell bent on getting a vornado, but now highly considering the dreo!

  • @369TurtleMan
    @369TurtleMan 3 дня назад

    Your accent is fascinating! I’m terrible with identifying accents but for me it was a toss up between Canadian, Scottish, and Irish until I saw the .ca in your website’s URL. I believe some regions of Canada had a lot of Scot-Irish immigration so it makes sense why there would be similarities in the accents!

  • @granjmy
    @granjmy 3 дня назад

    Here's something interesting- I can see your results, but my mind STILL says that right up against the screen blowing in works best. Fascinating! Thanks you!

  • @worldwatcher69
    @worldwatcher69 3 дня назад

    Can someone tell me a summary which fan and which position is good? ❤thanks

  • @GAB-vq7re
    @GAB-vq7re 3 дня назад

    Dammit I love you for this! I obsess over optimizing stuff like this! You're a legend, mate!

  • @tanompace9901
    @tanompace9901 3 дня назад

    The director did a video where he reacted to reviews for the movie. He went out of his way to find the bad reviews and said they are the most important ones to learn the most from

  • @danijelmaerek4406
    @danijelmaerek4406 3 дня назад

    It depends on wind in sorounding

  • @watchhunteeteego4564
    @watchhunteeteego4564 3 дня назад

    In the early stages of the transition to LEDs, my father got a deal on several cases of Sylvania Osram LED bulbs and put them up all over his house. He gave me a case of them, and I started using them as bulbs burnt out. Ironically, those are the only ones I've ever had much issue with. Several developed a serious flicker, while a couple didn't even outlive the fluorescent bulb that was already in service next to it. I went with the slightly more expensive GE LEDs when I replaced all the cheap original light fixtures throughout the house about 4 years ago and haven't had to replace a bulb yet.

  • @NormReitzel
    @NormReitzel 3 дня назад

    Another place is to wipe the dust off an old-style CRT using a tissue. It's relativelt easy to measure thed gamma spectrum of Polonium 210. Same ieea, balloon seems easier.

  • @bjtaudio
    @bjtaudio 4 дня назад

    Gee I was expecting the black blob was a just a power factor correction capacitor, but it actually useless rubbish, would have been easier just hooking up the real cap. Also the rectifier and smoothing cap was unnecessary expense to just light up 2 green 5mm LEDs. madness. By plunging in Short circuited plug will ruine you're wall socket contacts and can possibly lead to a terminal fire in years to come on high current devices at night like a room heater. Yes we get it...its a SCAM.

  • @luogl
    @luogl 4 дня назад

    Seriously though, normally I don't do this kind of stereotyping, but dude, you are proud profound smart Canadian.

  • @inchefnito6737
    @inchefnito6737 4 дня назад

    Did he say raspberry pie

  • @nicholaslewis279
    @nicholaslewis279 4 дня назад

    I read it as oreo lol

  • @luogl
    @luogl 4 дня назад

    Thanks for sharing! Also, being an awesome Canadian!

  • @AIDAGONZALES-mm8yl
    @AIDAGONZALES-mm8yl 4 дня назад

    Oh my, thanks for the comments i will cancel my order

  • @user-tn1mh6wl3e
    @user-tn1mh6wl3e 5 дней назад

    Love your research! It really helps me to go this summer🎉

  • @promix49
    @promix49 5 дней назад

    Thank you for your effort, it's interesting that the air flow direction has to be "initialized".

  • @W4iteFlame
    @W4iteFlame 5 дней назад

    Thank you, it will help

  • @silverranger3532
    @silverranger3532 5 дней назад

    Oh it's too bad you didn't answer your own question. "Do I need a fan with an app"? The answer is "Of course not".

  • @joycedudzinski9415
    @joycedudzinski9415 5 дней назад

    I totally agree with you. I also noticed on regular old fashioned bulbs that are made in Mexico, they barely last two or three weeks and then they die.

  • @randomtube8226
    @randomtube8226 6 дней назад

    There are so many types of fans out there. Which one has the most thrust?

  • @LPMutagen
    @LPMutagen 6 дней назад

    Kinda impressed with how well wood works as makeshift pneumatic fittings.

  • @perrybrown4985
    @perrybrown4985 6 дней назад

    My father was an electrician and as a kid I received dozens of zaps - and in a 240V country (Australia), they are the real deal... At the point where I could bearly walk, my dad had come home with a plug in his pocket, where he had cut the wires off flush with the body, and dumped on his dresser. I naturally plugged it into an outlet by pressing it in with my hy palm on the bare wire ends. Apparently I received a nice burned hole in my palm from that - made worse by the fact I had climbed onto a stool to gain access to the outlet (full marks for determination). Another time (at ~5yo) I was trying to electroplate a penny - I had attached wires to it and immersed it in mercury (ah, the good old days). I was then poking the wires into an electric radiator to "get electricity". Naturally, an explosion followed but with minimal harm. Another time, after my father had become alarmed and installed "safety shuttered" outlets throughout the house (which won't allow access to the live contacts without first having the longer earth pin enter)... I soon explored their operation and was (as related by my parents) "showing" the girl next door how they work with a bit of wire she was holding and a pair of scissors. Just a few cases - it is a wonder I survived. Electric shocks are very unpleasant - I don't know why I didn't learn... These days I am an Electrical Engineer with a healthy respect for these things and haven't received any shocks for decades 😊

  • @joeykeilholz925
    @joeykeilholz925 6 дней назад

    1. Own a home (IMPOSSIBLE)

  • @alexanderbrinkley4332
    @alexanderbrinkley4332 6 дней назад

    The failure had nothing to do with it being an LED bulb so why imply such?

  • @DaveNorthWest
    @DaveNorthWest 7 дней назад

    They are EMI filters. They take the unscary spikes out of your circuit like when turning your tv or computer on. The one you have is a fake one

  • @JetFire9
    @JetFire9 7 дней назад

    With all the leakage issues, I just realized this guy must be the lead engineer for the Starliner.

  • @randomtube8226
    @randomtube8226 7 дней назад

    Who came out on top? It's still hard to decide. Fan speed vs price 🤔

  • @emilyb5307
    @emilyb5307 7 дней назад

    I...dunno how I ended up here, but nice! Glad to learn something today.