So true it almost happened to me I was watching videos with fake and wrong information when I was younger but I found channels like this and now I'm more interested in electrical engineering 👍

SubigirlAWD _ That's awesome

they're everyhwere on youtube. suprisingly with more than 13 million more views. i only remember americantech but thered too many of them

Is it possible to calculate the efficiency before hand? it will save lots of time if you can visualize the result.

and do you hnow what it even worse? it's from "Verified" channel

Hu...humm

LMAO XDDD

😂

The second hurm...after done trading with steve

🤣

well he still has it up on his fb account

Yes, there is a need. Read deeper into the comments, heh. No fanbase is free from arseholes, and there are plenty of pitchforks and torches in the shed over there...

@@Corbald which one is the sharpest? 😜😅

@@EvenTheDogAgrees I agree with that one. You may get charging sign, so your phone will turn off battery saver and discharge faster

i'm sure thats an oxymoron

Thanks for sharing this Karl Jay! 😊🌎❤️💪

THE RECTIFIER!

You'll should do better job of bringing this to him!!

I think we now know what his next video will be!

Well first a moment I thought I was in electrobooom's channel

And get shocked in the process!

Yes yes, you both should.

Agree!!! Can't wait for the collab

Sir I am a subscriber of both of you.. and a big fan also I would love to see you together in a same project video.. plz do it.. Best of luck to you both😄😄👏👏👏👏👏👏👏👏

Tech Ingrediants just built a HUGE TEG from 36 TEC's! It produced 100V DC with no load in boiling water with cool water pump, which was head pressure from a river! kzfaq.info/get/bejne/nqp8irKQrsfKnJc.html

I used frying pan xD

@qwerty mnbvc Not the efficiency but power output should be higher for a short while before the whole house burns down 🤣

@qwerty mnbvc LMAOOO

​@@scientistharsh Good, that mean more power.

Yeayou can also scream into quarz crystals and produce a small current. youre speaker is also a microphone. Hook up a osci and talk into a speaker, looks pretty cool and is a fun party trick (well on a party full of electrical engineers) This is the Piezo electrical effekt. You can either supply current to a piezo crystal and the crystal will start too vibrate or you vibrate the crystal and it will output energy In theory you could build a piezo generator running on the screams of humans wich is probably how hell produces its electricity

The skeptic in me always says... it's not free when ice is needed and so are candles. Energy is needed to make the ice and candles cost money.

@@afox5319 similarly, you can shine a light at an LED to produce a tiny voltage or power a solar panel to produce a tiny amount of light. If course neither is as efficient at doing the other's job, but the principle is similar.

Fixing hot plate at 50 degrees and the heat sink, which thermoelectric module would produce more power: TEC1-12702, TEC1-12706 or TEC1-12710?

TGM-199-2.0-1.2

I was like "so this is what he looks like..."

He showed his face years ago

Hot

This confuses me. Every couple videos he how's his face.

Same

True fact

big brain maths

Less area of brow, but the brow is higher.

The brow gets compensated by the (dashingly handsome) beard.

I definitely prefer GeatScott, Mehdi humor is quite noisy tbh

ElectroBOOM lol

OMFG I just started watching that video after this one, I nearly fell of my chair laughing!!

FUUUUULL BRIDGE RECRIFIER

RECTUMFRIER

Cyber Cat 😂😂😂😂😂😂😂

Random. Does your family tree look like a ladder ?

Random. No. Just no

PURIFICA- eh... different thing.... RECTIFIER!!

Devlover Nibir yes

@Devlover Nibir you dont have to ask, we already know

*full bridge rectifier*

*bleep* *bleep* *bleeeeep*

I was just going to say the same thing and was scrolling down to see who had beat me to it. Nice.

So true

I know the theory of using those rods to join aluminum. I also know it takes practice. Thick aluminum is a very good thermal conductor. You pretty much have to heat entire parts. Otherwise, the heat you apply at the joint will get carried away to the cold parts of the metal and too much crud will build up before the joint is up to melting temperature. Then there is surface prep and how to get the bead started. Surface preparation

Check out Uri Tuchman, hand everything. Wizard of creation. Made his own lathe etc.

Yeah, people don't realize that the type of thermoelectric coolers used as coolers in mini fridges don't work well as generators, and the thermoelectric generators don't work well as coolers.

(T)hermo(E)lectric (G)enerator as opposed to (C)ooler. TEGs are designed with a peak efficiency at high temperatures. The temperature differential (hot side, cold side) is what generates the electricity. Amazon has a TEG that claims 10 watts, but that is at a 120 C differential which is pretty difficult to reach because the conversion efficiency is closer to 5% so keeping the cold side also includes pumping away the wasted heat.

Stirling engine phone charger. BRB, making 1000 and flooding banggood.

Considering efficiency's on paper, a Stirling engine should produce more power from the same temperature differential. Life isn't so simple as doing the math, it's better to test these things given practical limitations of designs and cost.

Perhaps. Just as Tj Wolf commented above, this should be determined experimentally. In general however, Peltier technology so far has been inefficient, and a well-designed Stirling engine and a DC generator might do the job better than Peltier modules given the same thermal energy.

Stirling engines wase build to make electricity

I seem to remember reading somewhere that the Stirling effect was the most efficient it was possible to get with regards to capturing energy from heat transfer, so it'd _probably_ work better... That said, my memory isn't what it used to be, and there were probably qualifiers.

Yes, and Soviet Union used them even terrestially all around, becoming infamous after the government collpased and people began to steal them for valuable scrap metal, with their plutonium pieces mixed with all the scrap iron. I would be very interested to have similar thermoelectric generators, to be used with non-nuclear heat source. Another Soviet marvel were the lanterns with integrated thermoelectric elements to power radios and other low-power devices. I think they might suffice for smartphone charging, or at least could be nowadays made as such refined versions to suffice. I wonder how such elements are structurally build from two metals, as all demonstrative examples have been about wires twisted together. But why couldn't we just have those bimetal interfaces as plates of different metals bonded together? Of course we need two interfaces though. Common sense would say that the larger surface are the more power? But maybe it's more complicated. But can't be too complicated, as working useful examples do exist.

With motors, AFAIK you get quite well the same efficiency both ways, provided you handle the many-factor-dependent voltage and current properly. With peltiers, I don't know but I think the major caveat on using as generator is the practical inability to get all the heat gradient "focused" through the peltier material interface. Ie. big proportion of externally administered heat flux will "bypass" the interface through ambient heat and structures, whereas when when the peltier is powered by electricity, all its generated heat gradient is produced at the material interface, as it is its natural origin point and thus any of it cannot "miss" it as in generator-usage case.

Yes, but it has to be a pretty nasty aggressive flux.

Aluminum very quickly reoxidizes if you scratch off the oxide layer. There are fluxes for low temp tin zinc solder and for high temp aluminum zinc solder if using a blow torch.

I didn't even think it was possible to solder aluminum. Solder doesn't seem to wet it. I guess I was dealing with the oxidation layer though.

To solder aluminum you have to warm up the material from the opposite side, never heat up directly the solder rod. Flux is with special solder not necessary, just a bit skill

I would argue against soldering aluminum altogether. Clean way to do joints is TIG welding. If you cant or dont want to do that, then stay on the side of screws and bolts.

😂

Alexander nevertheless is a single word.

@@ElZamo92 obviously this kid is slow. Anyone still using that meme in 2019 is obviously way behind the times

Yeah, I want to power my home with nuclear energy using PV panels.

Yeah but it goes away during half of day and sometimes hides so you need tea light powered alternatives

@@JaredConnell You can store some of the power in high current batteries and have them connected to an inverter to power your house during the night.

This device works when the Sun is not there. Personally I only see one good use for this device. Silent Generator. You can build a gas generator with 0 sound with this tgm. If you have an rv it makes sense. The problem is they are very expensive compared to the cooler units. So you can buy more batteries instead of those units. But as far as i know if you want a slient generator,even if it is very inefficient, this is the way to go.

@@ademmeral At the end of the day a Stirling generator will still be more efficient.

I cant say if that exact setup is possible as I haven't seen the video, but in theory it should work. It is the same technology used in wireless chargers. You would need to be close to the transmitter or have a massive antenna or both just to get usable power from it.

@@zachdemand4508 Yes; Theoretical a «field» would be present proximal to the antenna; In physics any energy can often - more often than expected - produce some energy which would result in this being very plausible experiment; But this is no free energy ~ there is no such thing? I did see a gravity wheel which suggests considering but no free energy has ever been produced reliably there has always been slight of hand

@@ChiDraconis I never said it was free energy. Although it would be free to the person using the device as long as they dont pay the bill at the radio station.

@@zachdemand4508 Correct; I was speaking to warn the few; Just now i see that some radio stations pulled I got a brand new pair of roller-skates due to exotic statements made by uninformed

If you're close enough to a broadcast antenna farm, you can light a florescent tube just holding it your hand.

Go outside open the lid of a bin and climb inside wait for the garbage truck get disposed of properly

@@silvia_fuku0ka845 ???

You are something else :))

Like satellites? Yeah would be cool, let call in at the shop for some on my way home....

Should work for about 50years (Voyager is still pottering along).

Oh yeah that one! I don't get these bs free energy devices. Why even make them when they are all less effective than a solar panel.

I remember this, the media were wanking themselves silly over it just because he used a few technical words. But everything he said was nothing special at all. It was quite pathetic the way his parents and the media bigged him up which will cause him issues later in his life.

no u

@@waliddiy9348 no u

@@personious_k no u

@@waliddiy9348 no u

no u