MadSci Network: Physics

Subject: Can you ¨harvest¨energy emitted by Wi-Fi antennas?

Date: Thu Oct 21 03:09:08 2004
Posted by Mario Fishman
Grade level: grad (non-science) School: Stanford University
City: Palo Alto State/Province: ca Country: USA
Area of science: Physics
ID: 1098346148.Ph

In an answer posted in March by Donald Howard in your site regarding feasible 
alternatives to transporting energy he mentions that energy transmission 
through waves in the atmosphere is not an option because of the necessary 
voltages and big distances. I am wondering if with small distances (like those 
found in a room between my Wi-Fi enabled PC and the Wi-Fi transmitter 
this transmitter would be able to transmit energy to my PC through the same 
method they transmit bits. What are the parameters that I have to take into 
account so this situation can take place (e.g. min volts, min watts, min 
distance, etc)

Re: Can you ¨harvest¨energy emitted by Wi-Fi antennas?

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