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University Uses Tesla Technology to Wirelessly Charge Electric Bus

Activist Post | December 5, 2012

Utah State University presented a first-of-its-kind electric bus that is charged through wireless charging technology in a demonstration Nov. 15.

The Aggie Bus rolled onto the streets carrying passengers today; just 16 months after USU demonstrated the first high-power, high-efficiency wireless power transfer system capable of transferring enough energy to quickly charge an electric vehicle.

In July 2011, the USU Research Foundation demonstrated 90 percent electrical transfer efficiency of five kilowatts over an air gap of 10 inches.

The demonstration validated that electric vehicles can efficiently be charged with wireless technology.

read more http://theintelhub.com/2012/12/05/university-uses-tesla-tech...

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Blind Acceptance

"Or better yet, why not actually read up on primary documents either written by him or people who worked with him?"

He worked with people like Thomas Edison and J.P. Morgan, of course, why haven't we been forming concepts of the man based on the people who set out to ruin him? hahahaha



Or, ya know, people he actually know or worked with and who were sympathetic towards him. People like Edwin Armstrong, Lee de Forest, Anthony Szigeti ( His best friend ) , Robert Underwood Johnson and his wife ( Close friends ), George Westinghouse ( employeer and major benefactor ), Willhelm Rontgen, Mark Twain etc. etc.

It's obvious you have no genuine curiousity about the facts surrounding Tesla, but I'll keep them coming in case anyone else is interested .

If anyone wants a fact-based book to read on the subject I recommend ' The Life and Times of Nikola Tesla: Biography of a Genius. ' by Marc Seifer.

- Liberty and Prosperity -

"Genuine Curiosity", "Facts", and... Projected Opinion

It's obvious you have no genuine curiousity about the facts surrounding Tesla, but I'll keep them coming in case anyone else is interested .

What I did was state the obvious: That not everyone Tesla worked with would be good sources of information on the man - Many of them (whom I named) conspired to ruin him.
If you want to dispute the "obvious" then go ahead and try to dispute what J.P. Morgan and Edison did to him. I'll be happy to listen.

But until then, I am going to call out your perceived concept of what is "obvious" to you - that is what I believe (the part I quoted above "you have no genuine curiosity about the facts...")

Seeing as you most certainly have no knowledge about who I am, let alone my beliefs and principles, this is just opinion being blown out your fingertips. This disrespect is indicative of your overall personality and undermines your credibility when it comes to describing others - this includes Nikola Tesla.

The next time you feel compelled to tell others what they believe, who they are, and what they think, just remember this is your own, personal concepts being projected onto them. Although it is a matter of opinion you are entitled to, it is also our choice to buy into it or call it out for what it is.

You've shown your hand: For those of us who are genuinely interested in facts, your personal opinion about me (and consequently others) now means absolutely zilch.

As for a fact about me: I am a science student majoring in physics; it is in no small part due to the legacy of Nikola Tesla.
How about yourself?

not a list of topics

A specific list of items about which he was wrong.



The poster, indeed, composed a list for you.

Google the items in the list for more info.

"I do not add 'within the limits of the law,' because law is often but the tyrant's will, and always so when it violates the right of an individual."

I agree

Tesla was a great inventor and knew his stuff but this is not Tesla technology. Every battery charger I have ever worked on or seen for that matter works on the same principle. In this case you just have the primary coil in the ground and the secondary under the bus instead of the two being boxed in the same compartment.

if the system is ultimately powered by AC electricity

then it most certainly is using Tesla technology, just as every home in the US uses it.

We are not talking about the same thing here

First off Tesla did not invent AC current. Secondly, we are talking about the so called wireless charging system. What Tesla was doing with wireless power transmission was totally different than what these guys are doing. And although they use inverters to power the bus by AC current the bus would not run unless it was powered by the DC current of the battery bank. Should I invoke Edison because of the use of DC current? I think not.

All battery chargers use magnetic fields created by ac current running through windings/coils in close proximity to a secondary winding/coil that creates DC current via diodes to charge the battery. (Simplified) This appears to be no different accept they have a stronger field that will span a greater distance to excite the coil under the bus.

Nothing new and definitely not in league with what Tesla was doing.

It's definitely an air core

It's definitely an air core transformer as you say. They indicated their interface operates at "high frequency" and has a 90% transfer efficiency so I'd guess they're using a tuned circuit interface of some sort (resonance). This is how RFID chips work. The secondary is basically an antenna. The resulting AC current would then be rectified to become DC current to charge the battery. They couldn't have multiple 25kw broad band sources around the city (spark gaps, etc), so it would pretty much have to be a narrow band charging system. There'd be too much interference otherwise. I wouldn't be surprised to find out it operates at a multiple of 60Hz since there are harmonics there anyway.

So who did what? I'm not sure it matters, but the arguments here seem to be mostly about ownership of the basic theory behind how this interface works and not about the technology itself.

From what I've read, Faraday did notice that a changing field would induce a current in a wire, so basic induction was known before Tesla.

Tesla did, however, champion AC power distribution systems so is mostly responsible for the power in our homes. His AC motor made AC power viable. He also did quite a lot of work with high frequency resonance (tesla coils, etc) so if this new tech is based on resonant power transfer, I wouldn't be too quick to discount Tesla's influence.

I think we all root for the underdog here, so Tesla would naturally be a hero. Tesla was a great inventor, but we all stand on the shoulders of giants.

Thanks and I agree

From what I understand the energy transmission that Tesla worked on was much different than this and that was the point I was trying to make. Tesla didn't simply create a magnetic field to excite a coil a few inches away, he was or proposed to send power over long distances. Tesla was definitely a great mind and was before his time. He understood alternating current and natural energy probably better than anyone before and possibly since.

When I hear "Tesla technology" then I want to see something GRAND and new. But that is me.

FWIW, there are mini versions

FWIW, there are mini versions of this "wireless" charger on every IC engine. Namely, the coil that powers the spark plugs.

"I do not add 'within the limits of the law,' because law is often but the tyrant's will, and always so when it violates the right of an individual."