2008年11月9日星期日

無線能源,又有新消息........(雖然談了兩三個月,但毫無反應。中國人社會,當沒有這件事發生..............

Dear William

Indeed its good news and sad news. We have talked about it for months, but,
no one is interested. May be until one day,
the Jewish people from Intel( Intel is Jewish Company?? (need to check it)) could use wireless equipment to replace fossil fuel, then the world would be
shaken.

Leechard



Date: Sun, 9 Nov 2008 15:56:24 +0800

Leechard,

Witricity, now in development stage, is, under man effort, moving with speed, and closer than ever imagined, to the practical stage.

When i said in July that wireless electricity has been proved existence in last year, i, like many people, thought that two or more year is required to experiment whether energy can be transmitted wireless. Researchers of Intel, the american company, has did an experiement in late august to show us that it can do that. It is a great piece of science discovery news to us after we have heard the proof of memristor, the forth component in circuit, in may this year.

The energy-transmitting nature of witrictiy, i think, shall have many application in daily life. The distant transmission of electricity without a physical medium involvement, like the space, can now be made possible. And we shall use less metals to make conducting wires to connect places in pursuit to transmit electricty. We shall see that wireless electricity can play a important role in future society, and i can now say that "witiricty can a tool to make the human dream, no cable and wire to trnasmit electiricty, to come true",

To let you have an idea on what witricity transmmiting energy has happened, i attached a bbc news piece here.


------------------------------------------------------------------------

An end to spaghetti power cables
By Maggie Shiels
Technology reporter, BBC News, San Francisco




"The notion of disappearing energy sources is a powerful one," Justin Rattner, Intel technology boss, told the BBC.

he said. "No cords, no batteries anymore."

Mr Rattner envisaged a scenario where a laptop's battery could be recharged when the machine gets within several feet of a transmit resonator...

Intel's technology relies on an idea called magnetic induction. It is a principle similar to the way a trained singer can shatter a glass using their voice; the glass absorbs acoustic energy at its natural frequency.

At the wall socket, power is put into magnetic fields at a transmitting resonator - basically an antenna. The receiving resonator is tuned to efficiently absorb energy from the magnetic field, whereas nearby objects do not.


At the Intel Developer Forum in San Francisco, researcher Alanson Sample showed how to make a 60-watt light bulb glow from an energy source three feet away.


In early experiments the MIT team lit their light bulb from seven feet away with larger charging coils and scoring an efficiency rate of between 40-45%.

This meant most of the energy did not make it to the light bulb. MIT has since improved its system to 90% efficiency at the three feet range.

'World changing'
Intel has called the system WREL, a wireless resonant energy link while MIT named it WiTricity - a combination of wireless and electricity.


Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/technology/7575618.stm

Published: 2008/08/22 09:20:54 GMT

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p.s.

I believe it is a important news to the world, other than credit crunch, and new president being elected, so i decided to send it to you as i wish to inspire you on some new scientific thoughts. I wish you can look at both my letter now and that at july when i first thought about witricity, which, i hope, could be useful for your study on this matter now. I wish you can allow your friends to read this article by referring to bbc news page:

http://news.bbc.co.uk/go/pr/fr/-/2/hi/technology/7575618.stm.

1 則留言:

匿名 說...

Leechard,

A strange question happened to me last night when listening radio, the question is simple though - why all symphony sound almost the same in the last few bars?

As you listen so much classical music, have you ever think of an answer, and when this phenomena started to appeared?