AC vs DC

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We all know Thomas Edison, his accomplishments are legendary, over 1000 patents were issued to this prolific inventor. Nikola Tesla, noted Serbian academic, was another inventor from the same period, trained in Europe as an engineer, he emigrated to the United States where he never attained the stature of Edison but arguably accomplished more. He is the inventor of our modern electrical power grid. This video summarizes this accomplishment and the role that both Edison and Tesla played in this accomplishment.

Опубликовано:

3 фев 2013

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Комментарии : 35

@mediaguardian 11 лет назад

I first heard of Tesla when in high school (over 40 years ago). In college, I built a Tesla coil for fun. Today, I have made certain that my children know who this person was and what he did for us. Unfortunately, his accomplishments are still not well known by the masses. Jim

@dusan19377 11 лет назад

Brilliant video as always! But there is only one thing I have to disagree. It's almost irrelevant but, Tesla's vision of modern electricity was that everyone have free wireless electric power witch he did in public to show that it is possible. It would be great video if you could make one with explanations of wireless electric energy. :) Thank you for all your great videos!

@HosamSultan 11 лет назад

one of the very few channels i appreciate spending my time on... It always makes me wonder and start a research on something...

@astrodotsg 11 лет назад

Brilliant video! Learnt more about AC vs DC in 10 minutes than from the boring science classes I had when I was a student in the late 80s in Singapore. Excellent presentation as usual. Just the right pace. Not too fast, not too slow. America needs more Science Educators of your calibre.

@rednisson350z 10 лет назад

4:05 Electrons actually physically flow from the negative side to the positive side. Although everything is commonly done or calculated with conventional flow (plus to minus).

@MiguelChami 11 лет назад

The best explanation seen. No other one need. Thanks

@savageone1260 10 лет назад

Thanks for the video. The difference is much clearer now

@allicks9220 10 лет назад

Very informative, thanks.

@winterbreeze23 10 лет назад

Love the videos! How science is put into perspective. Engineering and sciences are amazing and life-changing, I am probably not smart enough to do them, but I love them.

@lakshmanankomathmanalath 10 лет назад

great. thank you.

@PoorManMods 10 лет назад

enjoyed it and learned a lot

@Jonathan-ge8mr 10 лет назад

Great video with a nice addition of the history behind AC and DC

@mycompasstv 11 лет назад

excellent clip

@Apple.Repair 11 лет назад

great of u thanks a lot man!

@jackparr1985 10 лет назад

I am confused slightly. Voltage is like the speed of which charge travels to either poles, so if you have a low Ampere, high voltage circuit, you would still get a fair amount of coulombs passing a cross section of conductor per second resulting in much more amps? Or is it that the more voltage, the more joules are released resulting in more efficiency yet a low current?

@swayingGrass 10 лет назад

Then light energy become heat energy. But that was a smooth steam engine. But still Edison invented light bulb, so both are great =)

@AlexfromHollywood 11 лет назад

Thank you for this..excellent again!

@AeonFlexMusic 11 лет назад

i get my breadboard in tomorrow! Emagnetic Inducer/Repulsor coming soon! *maniacal laughter*

@MusicFlaMeS 11 лет назад

AC DC!

@heisenberg3099 10 лет назад

Imaging doing all that to read a book at night...

@nawafddi 11 лет назад

thanks Tesla thanks Edison thank you ScienceOnline :D

@fiable262626 10 лет назад

DC is making a comeback!

@Taareshcool10 11 лет назад

This work is highly appreciable esp. because i get to know such great aspects of a thing as basic as electricity,absolutely free of cost.......thanks scienceOnline....

@PietroEnciu 10 лет назад

How can you calculate the power in an AC system??

@vaibhavmj50 10 лет назад

Science won! You people make Amazing videos

@YourGamingTeam 11 лет назад

We dont have this pole in Sweden :D

@RodinTheOnlyOne 11 лет назад

You know Brady too? :D

@d0g3n 11 лет назад

Yeah, I'd like to see ads at least. I mean... I dont want ads, but they are everywhere and I could easily stand an ad before quality videos from ScienceOnline.

@asiaworldcity 10 лет назад

Nowadays high voltage direct current is much more better, less power loss and even cheaper then AC. There is a chance DC could fight back!

@AeonFlexMusic 11 лет назад

well, at least this was a better visual explanation of AC. The concept of obtaining higher current through lower voltages is still a bit fuzzy.

@Slunta 10 лет назад

tesla is born in serbia but he studied and lived in croatia

@thomassmithUTUBE 11 лет назад

Thomas Edison didn't invent a thing. Thomas Edison was a nobhead !

@kmica2008 11 лет назад

to correct your description: tesla wasn't trained in serbia. he was ethnically a serb but he was born and lived in croatia and as far as i know he never visited the region where serbia is today. before leaving for the states he was trained in graz, budapest, vienna and prague which had the best universities in the austro-hungarian empire. it's like insisting obama is keniyan or something. who cares and what's the point?