AC vs DC

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.

[mediaguardian]

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

[dusan]

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]

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

[astrodotsg]

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.

[rednissonz]

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). 

[savageone]

Thanks for the video. The difference is much clearer now

[MiguelChami]

The best explanation seen. No other one need. Thanks

[winterbreeze]

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. 

[Jonathan-gemr]

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

[jackparr]

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?

[AeonFlexMusic]

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

[swayingGrass]

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

[Taareshcool]

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

[heisenberg]

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

[nawafddi]

thanks Tesla thanks Edison
thank you ScienceOnline :D

[PietroEnciu]

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

[vaibhavmj]

Science won! You people make Amazing videos

[dgn]

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.

[thomassmithUTUBE]

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

[AeonFlexMusic]

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.