Current location: Home Laptop News Wireless - Wi-Fi News.

Wireless Power Transmission WithWiTricity

Posted by Laptopical.com

Comments
1
Likes
0
Dislikes
0

Long life lithium ion batteries and even methanol fuel cells have long been touted as ways to make us laptop users more mobile. However a new concept emerging from the Massachusetts Institute of Technology, dubbed "WiTricity", could soon help us break free from the shackles of power leads and batteries.

Wireless electricity may soon power a laptop like thisWhenever aperson in a cartoon has an idea then, more often than not, adisembodied light bulb appears above their inspired head. Ialways wondered where does the power come to light that bulb?Well it would seem the answer comes from the boys at theMassachusetts Institute of Technology, as they have successfullypowered a 60 Watt bulb remotely from a power source over 7 feetaway.

To create "WiTricity", they have employed an old concept ofphysics called "resonance", a technique that causes a physicalentity to vibrate when a certain frequency isapplied. Now if you can get two entities to vibrate at the same frequency theyexchange energy, even with out direct line of sight.
As theenergy builds up it produces usable voltage with each cycle, andsure enough, with a transmitter one end and a receiver the otherthe light bulb pops into life.

It's exactly the same thing that happens when you see an operasinger smash a glass using just her voice, both the frequency ofthe glass and the voice has matched, the energy is stored in theglass until it can contain no more and it shatters.

At the moment the experiments have shown there is a 40%efficiency rate using this kind of technology, but that is boundto increase with further experimentation and could prove usefulfor laptop users the world over. MIT's Professor Peter Fisher hadthis to say:

".....power levels more than sufficient to run a laptop can betransferred over room-sized distances nearly omni-directionallyand efficiently, irrespective of the geometry of the surroundingspace, even when environmental objects completely obstruct theline-of-sight between the two coils......As long as the laptop isin a room equipped with a source of such wireless power, it wouldcharge automatically, without having to be plugged in. In fact,it would not even need a battery to operate inside of such aroom." In the long run, this could reduce our society'sdependence on batteries, which are currently heavy andexpensive......"

Obviously this opens up all kind of applications with thewireless world that we all live in now. Could this actually meanthat the very last wire that binds our laptops to power socketscan now be cut?

Could it be "Light's out" for laptop batteries, fuel cells andpower cables? Nice work MIT chaps, but how about a little creditfor old Nikola Tesla. As early as 1891 this Serbian born genius came up with a wireless power transmission concept, otherwise known as the "Tesla Effect", over a century before MITLab's "WiTricity".


Rate this article

Most Popular Laptops at Pricegrabber.com

Model    
1. Mini 210-1010NR Netbook [+] Best Offers  
2. G71-340US Notebook [+] Best Offers  
3. Pavilion Dv6-2150us Notebook [+] Best Offers  

Comments

  • By: karthik Sep 23, 2009 3:37 AM

    try to put the circuit arrangement of wireless power transmission of power

Add your Comment

Verification Code
Verify (type this text in the box below the image)

Newsletter Sign-Up

Most Popular Laptops & Gear

  • 1. Inspiron Mini 10v Netbook - Customizable

    Inspiron Mini 10v Netbook - Cu

  • 2. MacBook Notebook

    MacBook Notebook

  • 3. Pavilion Dv6-2150us Notebook

    Pavilion Dv6-2150us Notebook

  • 1. EOS Rebel XSi Black SLR Digital Camera Kit

    EOS Rebel XSi Black SLR Digita

  • 2. EOS Rebel T1i Black SLR Digital Camera Kit w/...

    EOS Rebel T1i Black SLR Digit

  • 3. D90 Black SLR Digital Camera Body Only

    D90 Black SLR Digital Camera B

  • 1. iPod Touch 64GB Black MP3 Player

    iPod Touch 64GB Black MP3 Play

  • 2. iPod Touch 8GB Black MP3 Player

    iPod Touch 8GB Black MP3 Playe

  • 3. iPod Touch 32GB Black MP3 Player

    iPod Touch 32GB Black MP3 Play

  • 1. UN55B8000 55" LED TV

    UN55B8000 55" LED TV

  • 2. 42LH30 42" LCD TV

    42LH30 42" LCD TV

  • 3. Windows 7 Home Premium

    Windows 7 Home Premium

Powered by
PriceGrabber.com

Reviews & News by brand

Latest Updates

  • ASUS Eee PC 1000HE

    The Eee PC has a slightly faster Atom processor and a faster FSB compared to the previous models. While this is not enough for anyone to upgrade, it could certainly attract first-time netbook buyers. Read More

  • Dell Vostro A860

    When price and performance must share in compromise, few laptops on the market readily answer the call of duty. When it comes to getting high quality at an affordable price, the Dell Vostro A860... Read More

  • Dell Mini 9

    By now Dell has a full range of netbooks in sizes 9", 10", and oddly a 12" model, of which we’re looking at the smallest 9-incher here. Read More

More Reviews

More Top Lists

  • Apple Worldwide Developers Conference 2009

    Yet again, Apple's professional geeks will offer up sessions and hands-on code probing and testing at Moscone West in San Francisco. The dates for 2009 are June 8-12. Read More

  • E3 Expo

    The E3 Expo - also known as the Electronic Entertainment Expo - is the one trade show to visit to get the latest news from the computer and video games industry. Read More

  • CeBIT - Hannover 3-8 March

    Unlike CES, CeBIT is open to the public, so there's no need to be a press or industry affiliate to have a look at this massive trade show, which is the largest in the world. Read More

  • International CES 2009

    Find out all you need to know about the 2009 International CES. It features 2,700 exhibitors, including companies who manufacture products or provide services for the audio, digital imaging, home... Read More

  • Mac World Conference

    Make sure to make a note about the Macworld Expo at the Moscone Center in San Francisco, January 5-9. If you're a Mac user and wish to meet equivalent people in the industry this is the place for you. Read More

More Events

More Apple

More Linux

More Microsoft

Editor's Choice

  • Weird, Extraordinary and Record-Breaking Laptops

    Here are the laptops that break one record or another, be it oldest, ugliest, cheapest or just very out of the ordinary. Read More

  • Top 10 Technologies of 2008

    Laptopical's T.J. Aaron summarizes the breakthroughs in technology of 2008. As we are nearing the end of 2008 - find out what made his Top 10 of the most successful and talked about technologies of... Read More

  • Top 10 Netbooks

    The netbook world has gotten increasingly crowded, and until the massive popularity of the form factor wanes this trend will only increase. Beyond Asus and Acer, major corporations like Dell, HP... Read More

Latest Laptopical.com tweets

  •  

Follow Laptopical.com on Twitter