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[Unlisted] Why Use AC Instead of DC at Home??

🕑 Added 2018-03-23 20:11:02 +0000 UTC

Comments

I*m going to use that high rise jumping out of a window comparence a lot in the future..

Nathan Jones

re: Japan's power, 99% Invisible did a good podcast about this recently...

Great topic! Did you know Japan has 2 different electrical grids, one running 50hz and one running 60hz? I'd love to see a video about frequency and electric current.

ElectroBOOM, can you do a video on the difference between single and three phase induction

Ted is an inside job.

Don't listen to Ted.

Ted Gaunt

I think all of the shock effects are starting to make me feel a little too anxious when watching your vids. I love that it's a fun and funny thing, but don't feel like you have to ham it up with shocks every time! Would love that multimeter!

Mike oliver

Have the winners been picked yet?

Edison is why copyright now includes the First Sale Doctrine.

Tesla didn't fight this battle; he and Edison were in fact friends. Tesla also didn't invent AC, just a useful three-phase motor. He sold his patents to George Westinghouse, the guy who ACTUALLY fought the battle for AC against Edison.

Safe travels!

Preet S

whoa so that's where our auckland leccy comes from. thankyou for explaining.

Great video, thanks.

Jason Hoffman

Medhitation is way better than what I came up with. Can't wait to see it!

Very good and very scary too! I think the only error I noticed (that wasn't already corrected) was that you mentioned "170V continuous at 2:22", which is not actually the case for a half-wave rectified supply. Although super fun to watch, you wouldn't get arching at 8:42 at those separation distances with 'only' 840V per your insightful "7 MILLION VOLT TASER (stun... thingy)!!!" episode. Enjoy your trip.

Very well done, sir. Enjoy your trip!

Richard Boyce

As usual another throughly entertaining and highly educational video, where were you when I went to University... thanks mate, keep them coming..

Apuis Retsam

Good video. Both educational and stressful to watch. 820V... what was the frequency?

In Europe we have some of our underwater powerlines running DC because of the capacitance of very long wires. Didn't know about the elephants Edison tortured.. Such bad example to follow. Good content thanks ;)

I can feel your nervousness when u measure the 820VAC, is 100ohms in the transformer will really affect the efficiency that much?

Fuck me. Since the Jacob's ladder grab, all I do is worry about you when you get the high voltage going. We're not ready to lose you yet!

ElectroBOOM [Mehdi Sadaghdar]

It heats

Looks good. I like the mini mock up of a power transmission system. I also couldn't help but be slightly distracted by the clock in the back. It's easy to forget how much time it takes just to film these videos, not counting editing time. Good job!

Kenneth Carlile

My biggest question... did you repair your microwave?

One of your best videos! I thoroughly enjoyed it. Also, I like the name for the new channel.

Great video, I'll be sharing this.. One of my favorite topics too many people are unaware of. Thanks!

Great as always. Keep it up!

Good job.

Mike oliver

Great video as always.😃

Love your videos, but please loose the clock in the next videos.. it’s distracting me from watching the content.. (Guys are terrible at multitasking)

Great video! I also would like to see/hear a mention of HVDC.

great video thanks for uploading

I love this. Amazing work, Mehdi!

Eeeeeeeee! I suggested Mehditation. I think. Unless someone else did first. I just hope I'm not forever associated with you becoming zen and no longer making s--t explode. "I'm using a single diode rectifier" [no explosion, circuit works fine]. I would be hated by history like Edison. For some transmission in New Zealand (and I think a lot of other countries) we use "high voltage direct current"... And according to I guess whoever came up with it, in some instances like ours it's more sensible to use HVDC because of skin effect and capacitance or something. In NZ, we built huge hydroelectric power generators at the bottom of the South Island, as far from populations and infrastructure as possible. The hugest and most isolated station (Manapouri) uses its power to melt dirt, which is imported from Australia, into aluminium. From there/there plus the other massive South Island hydro plants... Somewhere in the middle of the South Island - approximately right on top of the giant alpine fault line and in the mountains - there's an AC to HVDC conversion facility thing. HVDC runs along the alpine fault, through the isolated and inhospitable fiords and islands at the top of the South Island, underneath one of the roughest/most treacherous straights in the world (Cooks' Straight), separating the two islands... All the while being on top of the fault lines. It then comes out of the water in an extremely isolated and exposed spot at the bottom of the North Island, traverses a bunch of other huge fault lines including the Wellington fault... And then in the hills near where I live, there's a huge transformer. On a steep hillside. And on a fault line. Where it gets turned back into AC. I think it can also transmit power from geothermal generation (and probably even Wellington's wind turbines?) back down to the South Island for when the hydro lakes are low and there's power deficits there.

Nathan Jones

hooray, MehdiTations was my suggestion, but wouldn't surprised if someone thought of it first...

Andreas

Nice Video, i love seeing an experiment to showcase such things, even if i already knew them. It takes it to another level, and i would have never tested this myself :)

So you won't talk about HVDC? I guess it would be too much information at once...

ElectroBOOM [Mehdi Sadaghdar]

A lot of things use AC motors. You would have to change them all

Jeffrey

Maybe just a dub mismatch. It’s no biggie, just thought I would let you know before you travel :)

Jeffrey

Awesome video. Odd audio jump at 8:45 for me FYI :)

ElectroBOOM [Mehdi Sadaghdar]

I personally like the leads that comes with my meter, quite rigid and nice.

Love this explanation, I will link to it in my electronics class as soon as it's public.

Mr Train

Hey uh Mehdi, do you know if you'll ever do any give aways for leads for multimeters? I've found that purchasing cheap multimeters comes with crappy leads and I don't know where to find some good leads. Any help would be appreciated. Thanks.

Aaron Brinkman

Mehditation haha that's perfect.

Mr Train

This was absolutely fantastic! I had always wondered this myself.

Would it make sense to convert mains AC current entering a house into DC and then distributing around the household wiring to make wall transformers unnecessary for powering electrontics including LED lighting?

We use AC because otherwise we wouldn't need a FULL BRIDGE RECTIFIER

Wow!

"I don't want to blow it up later". Pretty sure it will be blown by then!