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Witricity is based upon coupled resonant objects to transfer energy between objects without wires. The system consists of a Witricity transmitter, and devices which act as receivers.
Like radio receivers, the devices must be in range of the transmitter. Unlike the conduction-based systems built by Nikola Tesla in the late 19th century, Witricity uses resonant magnetic fields to reduce wastage of power. Currently the project is looking for power transmissions in the range of 100 watts.
As they put it: "Using self-resonant coils in a strongly coupled regime, we experimentally demonstrate efficient non-radiative power transfer over distances of up to eight times the radius of the coils. We demonstrate the ability to transfer 60W with approximately 40% efficiency over distances in excess of two meters. We present a quantitative model describing the power transfer which matches the experimental results to within 5%. We discuss practical applicability and suggest directions for further studies."
Technorati Tags: copper coils distances efficiency nikola tesla power source receivers wireless electricity witricity witricHP Dv7
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Processor Brand
AMD
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Processor Platform
VISION Technology Premium by AMD
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Processor
AMD Turion™ II
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Processor Speed
2.4GHz
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Battery Type
8-cell lithium-ion
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Display Type
LED high-definition widescreen with BrightView technology (1600 x 900)
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Screen Size (Measured Diagonally)
17.3"
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What's Included
HP Pavilion Laptop with Intel® Core™2 Duo Processor
6-cell lithium-ion battery
AC adapter, power cord/cable
Software: Microsoft Works; Cyberlink DVD Suite; Adobe Acrobat Reader and more
HP mobile remote
Owner's manual
Product Features
Intel® Core™2 Duo processor T6600
Features 2 processing cores, 800MHz frontside bus, 2MB L2 cache and 2.2GHz processor speed per core.
2 high-performance processing cores
Warranty Terms - Parts
1 year limited
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Warranty Terms - Labor
1 year limited
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Product Height
16.6"
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Product Width
20.3"
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Product Weight
19 lbs.
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Product Depth
3.1"
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Processor Brand
Intel®
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Processor
Intel® Pentium®
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Processor Speed
2.1GHz
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System Bus
800MHz
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Cache Memory
1MB on die Level 2
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System Memory (RAM)
4GB
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System Memory (RAM) Expandable To
Nonexpandable
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Type of Memory (RAM)
DDR2
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Hard Drive Type
SATA (5400 rpm)
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Hard Drive Size
750GB
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Graphics
Intel® Graphics Media Accelerator X4500HD
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Video Memory
My Dad claims that he saw something on tv today that said a wireless router and a cable modem if left plugged in for 24hrs a day, 7 days a week, accounts for up to 10-25% of your monthly HOUSEHOLD power consumption. I feel this is total bull, the LED lights just mess with his OCD (he's a nut when it comes to electricity use). My question is, is there anything I can show him to prove him otherwise? Does anybody know how much power these things actually use?
My router is - Netgear 54MBS Wireless model WGR614 v7
My modem is - Arris CM450A
im so angry i want to say something but cant. There are 3 of us living here, she was first and we rent the rooms out from her so very cheaply.
Technorati Tags: 2 friends clean freak household items household products huge room mad woman toilet paper the problem is that i am not able to design am amplifying circuit to amplify the output that i get from my oscillator.the frequency is about 1MHz.please help regarding which amplifier to use to amplify the power from the oscillator and how to design the circuit Witricity powered: explain witric..
