I was once told by a very experienced engineer, involved in wind turbine
design, that the energy used to manufacture all these devices can actually
exceed the energy they will produce over their lifetimes. I haven't worked
any numbers out for myself, but it would be interesting to see if he i
Right you are, John! I had the conversion factor for watt hour in my
head and forgot to apply the value for the prefix.
Ah, well, if Rich Leventhal picks up on that we'll know that he's done
some studying. And if he replies, I'll give him that correction.
The hype on this device is what you
It is not just the plugs that are different, but the underlying wiring. I
understand, though I am open to correction, that in the UK, domestic
premises have a ring main whereas continental wiring has a radial wiring.
In addition, in the UK, the neutral pin is tied to earth at the supply end,
where
Jim,
You missed a factor of 1000 somewhere. 1 kWh is 1000 W for 3600 s, hence 3.6 MJ.
In a drivethru application, this might hit 2 kW instantaneous power, but the
window will have a significant transaction time severely limiting the average
power.
He, of course, may have slightly different
I recently posted this email to Rick Leventhal at FoxNews.com.
Jim
Dear Mr. Leventhal,
I have just finished reading your online article
N.J. Burger King Testing Energy-Producing Speed Bump
http://www.foxnews.com/story/0,2933,546512,00.html
posted on FoxNews.com.
In this articl
The state of plugs and sockets is in far worse a state than that of measurement
systems.
http://users.telenet.be/worldstandards/electricity.htm#plugs_g
gives a list of the main types, and where they are used. Unlike the metric vs imperial/colonial
argument, it is not a case of the whole worl
