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Matthias random stuff
Canada
Приєднався 24 лип 2012
This is my odds and ends channel for random videos and videos note quite interesting enough for my main channel.
Main channel is ua-cam.com/users/matthiaswandel
Website: woodgears.ca
Main channel is ua-cam.com/users/matthiaswandel
Website: woodgears.ca
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
I'm actually positively impressed by how and how fast the GFI performed
Переглядів: 54 251
Відео
Gochifix 3 in 1 scope meter review
Переглядів 27 тис.2 місяці тому
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
Переглядів 49 тис.2 місяці тому
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
Переглядів 50 тис.2 місяці тому
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
Переглядів 140 тис.2 місяці тому
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
Переглядів 46 тис.3 місяці тому
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
Переглядів 73 тис.3 місяці тому
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: ua-cam.com/users/matthiaswandel
Washer motor wiring to reuse for projects
Переглядів 123 тис.4 місяці тому
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
Переглядів 118 тис.4 місяці тому
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
Переглядів 63 тис.6 місяців тому
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
Переглядів 49 тис.6 місяців тому
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
Переглядів 114 тис.6 місяців тому
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: ua-cam.com/video/z3scTRJCm7w/v-deo.html
More uses for infrared camera -- Buildings, farming, machinery
Переглядів 25 тис.7 місяців тому
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
Переглядів 61 тис.7 місяців тому
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
Переглядів 29 тис.8 місяців тому
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: ua-cam.com/video/a_hX2JcwHBE/v-deo.html
Making radioactive balloons using Radon gas
Переглядів 56 тис.9 місяців тому
Making radioactive balloons using Radon gas
Your vision isn't what you think it is -- see for yourself
Переглядів 56 тис.9 місяців тому
Your vision isn't what you think it is see for yourself
Air flow: It's all about fan thrust
Переглядів 65 тис.11 місяців тому
Air flow: It's all about fan thrust
Calibrating my anemometer for measuring really low wind speeds
Переглядів 48 тис.11 місяців тому
Calibrating my anemometer for measuring really low wind speeds
Raspberry pi Pico programming in C -- microwave oven monitor and reminder
Переглядів 40 тис.11 місяців тому
Raspberry pi Pico programming in C microwave oven monitor and reminder
ChatGPT: Its awsome... and it sucks. But still impressive
Переглядів 60 тис.Рік тому
ChatGPT: Its awsome... and it sucks. But still impressive
ex-Blackberry guy reviews Blackberry movie
Переглядів 81 тис.Рік тому
ex-Blackberry guy reviews Blackberry movie
Ugreen PowerRoam 1200 battery power station test and review
Переглядів 54 тис.Рік тому
Ugreen PowerRoam 1200 battery power station test and review
Blackberry trailer reaction and talking about RIM back in the days
Переглядів 74 тис.Рік тому
Blackberry trailer reaction and talking about RIM back in the days
I bought a scam energy saver and made it actually save energy!
Переглядів 399 тис.Рік тому
I bought a scam energy saver and made it actually save energy!
We get slightly nearsighted at night, corneal aberrations, and stars
Переглядів 35 тис.Рік тому
We get slightly nearsighted at night, corneal aberrations, and stars
Good job.
You are awesome!
Thanks, I use two fans to move air out of my basement to lower the radon gas levels. I've always used a box fan against the screen blowing out the basement and another upstairs blowing in. I'll move them two feet!
Thanks
Reminds me of Gale from breaking bad
I've been using a similar method for many years. But I remove the stand and place the fan at an angle so that part of it is adjacent to the mask mesh, and cool air flows into the room, but you need to be careful not to leave the fan near the window when it rains.
Surprised by the description of the protection circuit being a fail-hot, where it requires an action (solenoid energized) to trip rather than a lack of an action to fail-safe.
I am a Fan!
Matthias, curious, have you tested how intake/exhaust is when using vented/inline fans?
GFIs are set to trip at 5mA so that children will not get killed, at 20 mA a adult male’s muscles get contracted so hard that he is no longer able to release of the source of power they are holding. Women are slightly more conductive than men since their body composition naturally have a larger percentage of fat., but a good rule of thumb is about 1mA per every 10 pounds of body weight.
Currently in winter, but saving it for the next summer
Modern day timecapsule to a time before the algorithmic internet became the norm.
I can't even count the number of times i have got stung by 230v ac ... In the time before GFCI... The worse was while holding trying to light a 10000w light bulb (my father was a light designer at national television and we sometime had some awesome huge lightbulbs) i was holding the two wires to the fitting of the bulb with my hand with sticking the other side of the wires in the outlet. The result; the (old fashioned ceramic fuse) literally launched out of the fusebox and the outlet has a large green burn mark that still there to thsi day, some 50 years later
Large motor starting currents are why there are inverters with large overload capability of up to 300% so the problem here is just not using the right equipment for the situation.
It really works. Wow!
seems to me the dreo's blades creates more concentrated airflow. but impressed with the power efficiency of the dreo. this convinced me to buy the dreo when i have the chance, have a vornado and was loving it but wouldn't mind an extra/backup.
Cool video, thanks.
Not really a transformer; just a coil.
it’s a current transformer. go look it up.
@@matthiasrandomstuff2221: OK, sorry; somehow I thought transformers all had to have at least two windings. Maybe this has them but I just didn't notice. I'll be deleting this post shortly.
"A lot of things that are dangerous now weren't dangerous back then." Haha, nice joke (since the reality is just the same).
I think it would only electrocute you (and thus prevent this video from being posted by you) if you had touched one of those pads with one hand and the other with the other hand, or the foot on the other side, or vice versa, etc.
Haha, "setting off the GFCI... by _hand"!_ Literally!
"Instead.. instead..." Heheh, oops.
Huhh... interesting that YT detected some kind of age problem just for trying to show what 5 milliamps *feeL* like.
I talked bout how much it hurt in the original, and I think the algorithms detected that it might promote self harm
@@matthiasrandomstuff2221: Hmm, the system's too picky!
I'm surely glad you didn't electrocute yourself! Because if you had, then we might likely never haver the video (unless your wife found the raw clips and edited and posted them for us after her initial grieving).
Poor reliability high cost
Leaving a like and a comment for the broken fan. You’ve made some sacrifices for science, I feel that you deserve some appreciation!
But I need the fan to my face tho not for circulation
Very funny! Was waiting for the punch line ...
If the engine got burned no way fixing❤
Thanks UA-cam algo
Legend has it that the button still remains lost to this very day
ua-cam.com/video/kwNiXnK5FXE/v-deo.htmlsi=WBa8SSDDmglzeRtt
Just leaks here and there might be more cubic feet per minute, whereas feeling the cold air come in is nice. Have one blowing and another sucking, it's what you do with a tower PC?
Depending where you are, using cool night air can avoid most of the A/C use. E.g. England where nights over 20C are rare.
I wonder if one one those has this little tiny tube inside it (i think its called fuse). My question is how to install the fuse in one on those and why
Wait. Aren't we supposed to put the fan right up on our face?
see video title
But we cannot open the windows as our flat is on 5th floor and we have 3 cats 😔
Words I said huh? 😂
as someone who's shocked myself many times in and out of the same hand, from hand to hand legs before. I never suggest it! I have tripped afci and gfci both by hitting wires over the years, it was more or less a tiny pulse almost unnoticeable, especially compared to all the unprotected shocks and having dimly lit incandescent bulbs. I also suggest never wiring live or at least not without proper protection gear!
Theres s life lesson in here somewhere
This is the best UA-cam can provide. Thank you, amazing content!
good informative video nice to see the internals of the switch.
ty youtube ai overlords, sometimes you drop a blessing in amongst the hogwash <3 as a treat
Talk about Geekdom. Well done sir.
Coming in clutch for summer now
Q I AM PRESIDENT TRUMP I DONT KNOW HOW MANY TIMES I HAVE TO SAY THIS VINCE MCMAHON IS WITH US CODY WILL WIN THE BELTS THE ROCK WAS ON THE ISLAND LIST DIDDY IS NOT WITH US I AM COMEING I NEVER LOST I NEVER CONCEDED JUDGEMENT IS COMEING Q WWE IS WITH US VINCE IS WITH US CODY WILL WIN THE BELTS NCSWIC I AM COMEING I NEVER LOST I NEVER CONCEDED MAY GOD HAVE MERCY FOR MY ENEMIES BECAUSE I WONT WHEN DO YOU PLAY THE TRUMP CARD 🃏 🇺🇸🇺🇸🇺🇸 TREASON!!! YOU DO KNOW I HAVE THE NUKE CODES AND THE FOOTBALL HAPPY NEW YEAR !!!!! THE BEST IS YET TO COME!!!!! WHEN DO YOU PLAY THE TRUMP CARD!!!! Until the world sees the TRUTH! “I was right about a lot of things and I’ll tell you this, I’ll be right about the election.” - 45 IT WAS NOT EVEN CLOSE!!!!! AUDIT ALL THE STATES!!!!! DEEP STATE CAN KISS MY ASS!!!! I HAVE NOT conceded the election! This is very important for what comes next. You see, if AZ decertifies their results the ENTIRE election is now in question. Congress cannot certify election until ALL states have certified. Just like a state cannot certify unless 100% of their counties certify, the same is true of a national election with the states themselves. As Trump hasn't conceded, he now has a right to contest the entire election and that will mean the remaining 49 states will have to conduct a full forensic audit as a result. Why do you think so many states are visiting AZ for the audit right now, including states that supposedly already went Trump and didn't have contested election issues? They know what is coming. Do you all remember prior to the 2018 election Trump signed an EO13848 making national elections a matter of national security? >>>Now put two and two together. If even ONE state shows fraud it calls into question the results >>>of the entire election. Being a matter of national security now puts it under the purview of >>>who as forensic audits are done state to state? If you answered the military you are on the right track. I AM COMEING THE BEST IS YET TO COME!!!!That means they're playing along with Trump and im in control they've already given Trump back his power they've already reinstated him they reinstated them recently
Sorting by new really brings you some mythical comments
Yes and it's obvious why if you have it just at the window it's only sucking it in through the back. if you have it in front of it it's pushing it at the window it's pushing a way larger amount of it it still only has one way to go and it creates a stream that starts farther into your room, so it's more reliable.
where have you been whole my life men
Just cooped up in his house making HISTORY
Its only fans
Thank you brudah!