http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/ Engadget Comments for D.I.Y. wireless power project unleashes your inner mad scientist http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/]]>May 12th 2009 1:32PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:34PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/]]>May 12th 2009 2:08PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:59PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:36PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:43PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:50PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:04PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/:-(
]]>May 12th 2009 2:09PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
Anyway, there is no conclusive evidence that radio waves are damaging to people. The only evidence for it seem to be anecdotal. That said, I'm sure residents will want a decisive ruling one way or the other before this thing goes up. They also need to question whether it's possible to build something in space. Having this construction hovering over California uses up space which limits competitors doing the same thing.]]>May 12th 2009 2:21PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/-KevinC]]>May 12th 2009 2:56PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
Depending on the frequency and power of the radio waves, there is very good evidence that they are bad for people. Just ask that tv dinner you cooked for lunch the other day.]]>May 12th 2009 2:57PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 3:59PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
The fact that you think microwaves in your oven and the microwaves being sent as wireless power transmission are at all alike is cute. Take a few classes in electromagnetics first next time. The proposed space-based systems are VERY low power compared to your microwave (as long as you are out of the direct line of site, i.e., don't stand on the receiver dish), largely because they are using phased arrays to very accurately guide the beam.

"Overall, the epidemiologic evidence does not offer any reliable evidence that the ordinary level of exposure of humans within the rectenna area of SPS (0.01 to 1.0 mW/cm2) would cause any harm." http://permanent.com/p-sps-bm.htm

(this is WITHIN the area of the antenna. Anyone a few hundred yards away wouldn't be effected at all, basically).

I wish the general public wasn't so scared of words - "nuclear, microwave, etc" are only dangerous in the wrong context.]]>May 12th 2009 6:16PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 11:15PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:47PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:48PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
If you want to really experience something bad for you from "outer space", try staying out in the SUN too much! NOw that is a whole lot more "intense on humans than radio waves"...

Highest form of cancer in the world is skin cancer! Where do you get it? FROM THE SUN!

The transmission of energy back to the planet will be in microwave form - but that was in the article.

As for the topic - coooooool! I am so gunna do this one!

Cheers, mates. ]]>May 12th 2009 1:51PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/one thing that is for sure: Black or dark skinned people don't get
skin cancer because of the melanin in the skin. It's a natural sunscreen.
(yes, i'm dark skinned)]]>May 12th 2009 6:07PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:37PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:57PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 1:58PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 3:54PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://sanctuary.wikia.com/wiki/Nikola_Tesla]]>May 12th 2009 10:07PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:02PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:02PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:11PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:44PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:19PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
Of course, it's just electromagnetic induction, which was explained by Faraday in 1831 (before Tesla was even born). The voltage is induced by a time-varying magnetic field. Tesla simply showed that since AC is a time-varying current, it produces a time-varying magnetic field, which can induce a voltage by Faraday's law.]]>May 12th 2009 2:38PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/Ed
web/gadget guru]]>May 12th 2009 2:24PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:38PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
yeah pretty cool idea except for that whole conservation of energy thing]]>May 12th 2009 6:46PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:39PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
For people looking to try this...the circuit pictured WILL NOT charge your hipster ipod/iphone etc. The best you'll get out of that is a few low voltage LED's or other low current devices. They also don't go through a very thorough explanation of the tuned LC circuit. Anyways...pick up some IGBT's and get some real work done.]]>May 12th 2009 2:46PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 2:50PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/Could be possible to make a receiver to receive any kind of electromagnetic waves and turn in electricity?

...like turning a fm radio into a generator?


]]>May 12th 2009 3:36PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 3:53PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
On top of it, the item has to be so close to its wireless host that you might as well plug the darn thing in anyways.]]>May 12th 2009 3:59PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/
The space one actually is not like this at all. The space one converts it to microwaves, then uses a special receiver that turns microwaves back into usable electricity.]]>May 12th 2009 4:28PMhttp://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/http://www.engadget.com/2009/05/12/d-i-y-wireless-power-project-unleashes-your-inner-mad-scientist/May 12th 2009 5:50PM