Flywheel Battery 

Don't you mean to say... FULL BRIDGE RECTEFIER!

Exactly, it's not some dumb single diode rectifier

Actually I heard him saying it over and over again but it wasn't until Tom explained it that I knew what it does

Ikr 🤣

Full bridge or no bridge, all the way home

true... missed opportunity.

Yes he should have done it

I was just about to say the same thing...😪

Yup I was going to say the same thing. Or at least apply a similar sound effect

+1

seriously i finally learnt rectifier working here

with an unibrow will be perfect

Would this man be so good instructions and failures at the same time he might shock himself? Idk never heard of someone like that

He should be dad too and do some vids with his child at best a daughter.... so sad that we all dont know such a RU-vid :(

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sI5Ftm1-jik.html

It would be cool if he had a magic wand too

Nahh I don't see the obsession?? 😂😂

The mind learns something new and then extrapolates

Sir, you are wrong. He surely hates flywheels.

Ofc he is

It's a passing phase. Just like how he obsessed about pneumatic contraptions for awhile.

If you need this overly simple video to understand bridge rectifiers as an electrical engineer then god help us.

@@jeffclark5268 Get off your high horse Mr Achievements

*stares in Mehdi*

FOOOOOOOOOOOOOOOOOOOL BRIDGE RECTIIFIAAAAAAAAAAAAAAAAAAAAAAAA

Summon mehdii

**Summon Mehdi**

When I saw the words I was afraid mehdi would jump out

I love your videos too 👍

My coment was removed .. did you notic that ??

So wait, if he joins your Patron, would that cause some kind of Thanos level event? Would the laws of physics allow it? So many questions…

@@drink15 no, dw

I am glad to see you here Destin.

Everyone calls them crocodile clips in England

I lost it when he said it tho.

Crocodiles have a long pointed v shaped snout, and alligators have wider rounded U shaped snouts. TECHNICALLY he is using alligator clips. Not crocodile.

Yeah but it aliterates better and we don't have crocodiles or alligators in the UK so...

@@ooxRAINB0WDASHxoo No. In the UK they are called crocodile clips.

Yeah I was almost disappointed he didn't reference Mehdi when he used the term :'D

U mean a FULL BRIDGE RECTIFIER?

Same here, but he elaborated the concept more comprehensive

The common name is "full-wave rectifier" (FWR). A lot of power is lost in the diodes of an FWR. Transistors can be used instead of diodes with much less loss. This is called a synchronous rectifier.

@@TedSeverin samr

I am so confused at this line

That's not what he said.

That's what I heard too. Subtitles agree.

@@fburton8: You only _think_ you heard that. But if that's not what he said then it wasn't really there for you to hear.

@@HelloKittyFanMan. I create my own reality. You should give it a go!

get this comment more likes and replies so that tom can see it!

May be it would have been better to use a bad, unstraight axis and achieve higher rpm than resonance. After resonance frequency rotor would balance itself. With bad axis resonance frequency is lower so it is easier to overcome

still wouldn't work if we warp it when trying to insert the flywheel

@@oadka No you didn't even do any capitals or ask nice. :P

Also wondering if he could use opposing force magnets on the ends of the rod to locate it, eliminating all points of friction.

wait what

This is what I was trying to build in college.

Whats up RU-vid

Who run this youtube account?

Joined 51 years ago•31.5M subscribers 👀

This is such a bland comment. Especially coming from someone as talented and intelligent as yourself. Edit: for all the pissheads below that don’t get the point of my comment, it’s a spambot

Such a cool RU-vidr visiting an equally cool RU-vidr.

Why doesn't white phosphorus reacts when stored with water ? But it can react on the oxygen in air. I saw it from one of Nile Red shorts

Yes very cool, amazing

@@Monkey_D_Luffy56 I’d guess it can’t because water is too inert, and under normal circumstances the phosphorus has not enough energy available that could break the covalent bond of the water molecule and free the oxygen. Someone with more sophisticated chemistry background please correct me if I’m wrong.

And you could "charge" the flywheel when you have surplus energy and then use it when you have higher energy demand.

Che utilità può avere quel generatore? In altri termini: le bobine frenano il volano o no? Se no, l'elettricità prodotta potrebbe essere usata per muovere a sua volta il volano...

Well not much energy is captured in such a small flywheel, when rotated by hand. To get a better feeling for how much effort a human body must spend for an every day job of an electric device. There is a video on RU-vid where a cyclist is making a toast using his legs.

Until he said "desk toy" I had no urge to build one myself. :x

Next trebuchet build coming up ?

Flywheels are kinda tricky in vehicles due to conservation of angular momentum.

Electroboom rulez!

⬆⬆⬆

Yessss. I was utterly lost when he said it normally. It was like all the innocence and joy in my life suddenly ceasing. Then I went back and watched that episode with the DC power lines. 𝕄𝕆𝕋ℍ𝔼ℝ 𝕆𝔽 𝔸𝕃𝕃 𝔽𝕌𝕃𝕃𝔼𝕊𝕋 𝔹ℝ𝕀𝔻𝔾𝔼 ℝ𝔼ℂ𝕋𝕀𝔽𝕀𝔼ℝ𝕊!

Dammit...

I heard that the first time, but i didn't knew what he meant. Even the subtitles say he said toilet. Only now i realised...

you mean "FULL BRIDGE RECTIFIER!!!"

@@nicojansenvanvuuren2745 YES

Fear the unibrow!

10/10

I've only watched a handful of Electroboom videos and I couldn't even hear the phrase without hearing a loud echo in my head in his voice. 😂

Ummm, or just use a dial indicator. My old boss taught me the quickest way to get something roughed in is to use a sharpie and brush the high spot as object spins. Benn a machinist for about thirty years. His best bet is to cut off the shaft , drill out the center, and bush it for a new shaft. Pity it warped on him.

I would say never put your hands near a lathe spinning material at 500rpm. Better to buy silver steel which should be true

@@ianlainchbury what about with leather gloves

@@frostedlambs Never wear gloves when using a lathe. The gloves can wrap round the part and pull you in.

@@ianlainchbury That is a lesson that you do NOT want to learn the hard way, I have seen people getting degloved doing that as well... OUCH!

I was thinking: how much more efficient would it be operating in a vacuum? We need both questions answered.

yes

@@ericlotze7724 i dont think they use hydrogen though. Kinda explosive.

@@bertjesklotepino This is overstated in the public, and MANY industrial gasses are explosive/flammable (see petrochemical / crude oil distillation industry etc) It is all about safety systems etc, and even then pressure, and fuel-air mixture/ventilation are factors (a propane stove blowing out a match in a shed vs outside with a gentle breeze, which will produce more of an explosion when the next match is lit and that cloud forming ignites etc) Hydrogen-cooled turbo generators are a similar application. People probably tend to use helium, but hydrogen is "faster" if that makes any sense (granted i am not an expert, just a nerd, so if anyone has more on this subject i'd love to hear more (i *love* FES as a concept) )

@@I-0-0-I Commercial flywheel backup systems are in vacuum cans. Quite efficient, a little more expensive (if I'm remembering correctly the quote we got a year and a half ago) than a battery back up system of the same capacity. On the other hand, you never need to replace your UPS batteries!

Me too. Did he mean toy-let, as in small toy?

Same. I too checked the captions just to be sure.

i scratched my head so hard my scalp is bleeding

akshualley he was referring to the amount of work saved him by such a flywheel perpetual motion engine which he had named the ''Toil IT'' but which isnt for sale

I think he said "toy that"

Agreed

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Di6rWvwy02I.html

That would have been cool if it had. When I first saw his magnetic and wire configuration, Electroboom taught me the answer !!FULL BRIDGE RECTIFIER!!

I started scrolling down to the comments right after he said Full Bridge Rectifier. I was totally expecting a pinned Electroboom post. :|

Yes haha

Nice

True but it is however exactly direct current. As long as the current doesnt reverse its always direct. No matter how deep the valleys or how high the tops as long as its not crossing the 0V line its always DC.

@@fluke9972 you are absolutely right. Poor choice of words from me hehe

If only my electrics teacher could have explained it this simply

Why are the lights still flickering if there's capacitor?

Exactly! Same here.

6:21 notice the arrangement of the diodes, and the source and load. You can use a bridge to protect the input of your project from reverse polarity, If the battery was installed "the correct way" the power would flow properly. If the battery was installed "the wrong way" the power would STILL flow properly. Unfortunately, there is some voltage loss. Bridges typically use diodes that lose 0.7V each, so 2 * 1.5 = 3V loses possibly 1.4V If you build you own bridge using Schottky diodes the loss is less 0.3 to 0.4V. en.wikipedia.org/wiki/Schottky_diode Note: I previously referred to 4 diodes, which is incorrect

@@albertboaduameyaw8659 6:21 notice the arrangement of the diodes, and the source and load. You can use a bridge to protect the input of your project from reverse polarity, If the battery was installed "the correct way" the power would flow properly. If the battery was installed "the wrong way" the power would STILL flow properly. Unfortunately, there is some voltage loss. Bridges typically use diodes that lose 0.7V each, so 2 * 1.5 = 3V loses possibly 1.4V If you build you own bridge using Schottky diodes the loss is less 0.3 to 0.4V. en.wikipedia.org/wiki/Schottky_diode Note: I previously referred to 4 diodes, which is incorrect

Yea

@@leef_me8112 Its not 4 *1.5 since only 2 diodes will conduct at any one time

I was waiting to hear Mehdi scream that, ahah.

*** full bridge rectifier! ***

@@fabianmerki4222 FOOL BRIDGE REHCTIFIAH!

Same ahah

How about: wind powered flywheel

Would that actually work? I'm very interested to see an actual like demonstration

@@certifiedpossum1638 Yes! But there could be the possibility that it ends up being too heavy to work very well.

@@Sam-fq5hc No the torque will be a function of the surface area and geometry of the blades. With large enough blades you can power something extremely heavy. That is why industrial wind mills are so freaking massive and ugly

In the current configuration it is still a battery, the external force is just him. It stores the energy he inputs as kinetic energy and the alternator outputs that as AC

This. The theoretically ideal flywheel has asymptotically-close-to-zero mass and an infinite diameter. One could store much more energy by adding a ring of steel around the edge and remove the same amount of mass from the center.

@@LilMissMurder3409 actually wrong on the mass part. It's the momentum of mass that keeps it going. The ideal has an extremely high mass concentrated in an atom thick layer with no mass between the "ring" and the axle beyond what's needed to connect the two. Without mass you could not have momentum and cannot use that momentum to do work. The true challenge with the mass is figuring out how much is enough to do the work without requiring too much work to get it up to speed and keep it there. Infinite mass may seem to be the ideal until you realize that it will take infinite energy to move it. Near zero mass seems the ideal until you realize that it can't perform much work. The true ideal is somewhere in between the two extremes and varies depending on the work that needs to be done in combination with continuously needing to overcome friction.

@@ianbelletti6241 isn't aluminum a poor material choice for the outer ring then as it's fairly light? I suppose you would want to use something denser like bronze with carbon fiber spokes connecting it to the drive shaft?

I was also slightly anxious for a cross-over XD

Same!

I was searching for this comment. Didn't have to scroll down too much :)

LMFAO same

I was waiting for that sweet sweet unibrow

It's pretty close to that at 13:10. Notice how it starts wobbling as the motor stops, I think that's due to uneven braking resonating with the magnetic bearing.

Throw in a mechanism to drag start it like a lawn mower to juice up with extra spinning power, throw on optical rpm counter to know how much energy is in the system at any one moment, and measure the braking current, figure out the force and efficiency of the braking. Bonus. Make a small electric engine for spinning up the disc, charge up a capacitor for braking after it's hit max rpm and use the capacitor to run the electric motor again. Figure out the roundtrip efficiency of the energy storage system from the drop in rpm

As soon as you draw power, it does that. It doesn't need to be a dead short.

@@sbkenn1 Yes, sure but the higher the current the more visible the braking

Lmao same

or bigclive 😉

nono it aint full bridge rectifier, it's a FOOL BREEG RECTIFIOR

When things were at their very worst: 2 Suns, Cross in the sky, 2 comets will collide = don`t be afraid - repent, accept Lord`s Hand of Mercy. Scientists will say it was a global illusion. Beaware - Jesus will never walk in flesh again. After WW3 - rise of the “ man of peace“ from the East = Antichrist - the most powerful, popular, charismatic and influential leader of all time. Many miracles will be attributed to him. He will imitate Jesus in every conceivable way. Don`t trust „pope“ Francis = the False Prophet - will seem to rise from the dead - will unite all Christian Churches and all Religions as one. One World Religion = the seat of the Antichrist. Benedict XVI is the last true pope - will be accused of a crime of which he is totally innocent. "The time for the schism in the Church is almost here and you must get prepared now" Tuesday, 20 March 2012 The Book of Truth

I just heard him say it in Mehdi's voice xD

You know electroboom right?😂😂

I was expecting the comment to be posted by electrobook

THE MOTHER OF FULL BRIDGE RECTIFIERS‼️‼️‼️‼️

Erik Johnson is a time traveler! 🌈

Whoa easy myg guy..

i finally know what it means lol

Except I *really* expected to see him say the words!

@@ThePixel1983 Same here, I expected to see a cut of his "FULL BRIDGE RECTIFIER!!!"

Hospitals use these today, IIRC, to provide steady backup power for life supports etc. during the first few seconds of a power outage that their main back up generators take to power up.

@@epamaarainenroina220 Dont they use a diesel or petrol generators?

Use of the internal combustion engine should be on the way out. Solar, used to heat molten metal with external combustion engine hopefully developed soon and too use widely.

No reply’s?

A 4 diode bridge is a full wave rectifier.

Lmao same.

YEEEEAHHH!

THE RECTIFIER

Not likely.

this old tony would be golden!!!!

Yes!

I'll play machinist

He should make a much bigger one on a bike frame so you could really get it going with pedals. That might actually have some real world uses like charging your devices in a power outage.

My vote is for AVE

ACDC now qualifies as hate speech, beware the www stasi

@@DrBe-zn5fv What... ?!?!

This sounds like a quote of the manga-bible

The spin went down the wires. Far out man!

12:06 They say this is what aunt Gertrude heard that night the flying saucers took her away...

It's spinning with extra steps

What if they use the spin to make the spin spin more thus creating more spin

It sounds very proper and precise when Tom says it, but I think Electroboom should just trademark the phrase because that all I hear.

Rectum fryer

A fule brreedge rectafyahh

I am pretty sure that as an aerospace engineer he should know that already..

If you are starting with a solid chunk of metal, that wastes a lot of material which is probably why he did it this way.

@@guilhermerocha2812 I'm pretty sure he does, and might have even mentioned it in another video, I was being cheeky 😉

Lot of mass is not a big problem if your flywheel is levitating. Thinner centre might not make much difference , but it would require additional work to be machined. And your right. It's pronounced "FULL BRIDGE RECTIFIER" and not "full bridge rectifier"

I am dissapointed that he didnt pronounce it correctly :/

i thought it was the strongest binding type

@@baldr_ me too im confused

You could try packing tape framing with aluminum screws

Just slap some FLEX TAPE on there.

@@samykamkar you just changed the game forever

it also douse not matter if you power an led with AC as long as there is a high anth frequency for it to not notably blink

AC powered led bulbs also run on DC, the electronics in it just converts AC to DC

Everything can run on everything power wise...you just need the bridging components and power source such as step up or step down converters and all sorts off designs cheers

An led ran on low volt ac voltage will run on the alternating current depending on the frequency of alternation just like when he held the led up to the wheel and it was alternating on and off.. saying an led ran on ac is still running on dc is ignorant. If you take 4 diodes you can set them up in a way to convert ac to dc. If you replace the diodes with light emitting diodes it will do the exact same thing except the full bridge rectifier will emit light. If an ac voltage is applied to an led it will turn on at positive current and off at negative current like the sine wave. Being a diode it will only allow the positive voltage to pass through thereby making a square sine wave of positive current and 0 current.. half bridge rectifier.. but an led ran off of an ac voltage of the max 3 volts but at 60hz would still cause the led to burn out because of the potential, spinning object at 60 hz per say would be creating a lot of current.. or potential and splode the bub.. bub..

Yeah, he said that his generator is producing AC.

Not just you. I was looking for someone commenting about that. I'm from the USA so I figured over there they call pointless objects toilets 🚻 What did he say?

@@mrbyamile6973 "small toy that I bought off amazon"

@@BeTheGr8 OK, that makes sense, specially with his accent. I really thought perhaps he was saying something like *toy-lette* as I have heard of a small towel (hand towel) referred to as a towelettes. Thought it was a reference to it being a small toy. I put way to much Thought into one word (technically two words now that I've been corrected) 😃

@@mrbyamile6973 the auto captions get it wrong too. I was very confused as well.

1:40 Definitely "small toilet"

Phobos, storage is not measured in Megawatts, but megawatt hours, i.e the duration that the storgae can provide power for. What the DoE have not included is the amount of flywheel energy in all of the thermal and hydro power plants connected to the grid. These large machines have a very large amount of inertia from the roational speed and large mass of the generators. (Something wind and solar do not have) This flywhel effect has astabilising effect on grid frequency. Incidentally a test to measure how long this rotational inertia would last if power was lost was the reason that the chernobyl accident occurred. That is a problem with storing energy in a flywheel, as soon as you use it to generate power it starts to slow down and power and frequency drops off. It doesn't seem a promising way to store energy for a grid.

@@iareid8255 right, with each load, you need more force... That applies to about anything related to generating power.

@@iareid8255 It's output was the same in watts (from thicker and then thinner wire).. so he knows what he's doing but it's all for YT income. We're all done here, we're all done with energy.

Fun fact. The USA hid Tesla's free energy device

@@danieldaniel3536 If there was functional free energy, not even the massive fossil fuel lobby could hide it. Any country which has access to unlimited free energy would have a massive advantage over any other country, revolutionizing every aspect of technology and industry practically overnight; there's no way that neither the US or USSR would have ignored such a game changer during the cold war.

Which is to say: No free energy

Fun fact, that's how regenerative braking on electric and hybrid cars works

If you short the cables you stop it

@@marianofpv At the expense of generating heat, if it generates a lot of power it could melt the wires.

@@jb_roboticgames6540 More like regular braking on trains with electric drive systems. Emergency braking often cuts power to the traction system and uses the ordinary friction brakes. This is sometimes combined with a magnetic sled for extra grip. Given the amount of wear and tear braking systems experience it would be a silly construction to not use the (almost) wear and tear free method of braking.

Except that he shows the current flowing in the wrong direction. Bet nobody caught that.

I guess he spoke with ElectroBOOM to seek the ancient powers of the FULL BRIDGE RECTIFIER