Back in 2006, Dr. Marin Soljacic at the MIT Department of Physics and Research Laboratory of Electronics demonstrated the transmission of Electricity using using magnetic resonance. On Thursday, Intel was to demonstrate some progress in the wireless charging technology, which could be used to charge laptops, MP3 players and mobile phones without the need to connect any wires.
Intel was ... [ read the full article ]
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Originally posted by DXR88: over one hundred years of its discover and no advancement on it, truth be told i don't think it can be done. if it could the military would have tried this years ago. the reason i don't think it can be done is simple what is controlling the current to the device not a dame thing Electricity is dangerous no matter how low the volts, you have to play all the variables that modify electricity range and output the second it leaves the device
Ya but this not electricity in "lethal" form its more a form of magnetization that is able to charge a receiver with energy.
But there are other less lethal issues to consider like cancer causing energies, or it interfering with the operation of a device building up energy in ti and frying it.
Strange that actually we have been doing it all the time. It's what broadcasting is.. the transmission of power over distance without any direct connection. (while we still have analog radio make a crystal set and amaze yourself with power source free radio reception.. no batteries, no plug.. just the power contained in the signal) There is a connection, but you wouldn't think of the ground as being a connector in the normal sense and it isn't actually needed.
Look up the Lodge broadcasting system from around 1900 and you will see another method of transmitting power wirelessly using induction rather than radiation. It is used now everywhere you see that loop hearing aid device symbol in banks and shops.
Really quite simple to implement these days as the power and voltage requirements of devices have dropped.. I could make a radio or torch PSU which would pick up and rectify power from an induction loop running in the walls or floors of a building. Like radio broadcasts tho.. there is one really big drawback. Once the power is radiated anybody can use it, so it needs to be given free, and to do that we need unlimited free power.
More likely all they are after is "remote wireless power transmission" patents so yet again they can hold us all to ransom by patenting pre-existing technology!
Originally posted by varnull: Strange that actually we have been doing it all the time. It's what broadcasting is.. the transmission of power over distance without any direct connection. (while we still have analog radio make a crystal set and amaze yourself with power source free radio reception.. no batteries, no plug.. just the power contained in the signal) There is a connection, but you wouldn't think of the ground as being a connector in the normal sense and it isn't actually needed.
Look up the Lodge broadcasting system from around 1900 and you will see another method of transmitting power wirelessly using induction rather than radiation. It is used now everywhere you see that loop hearing aid device symbol in banks and shops.
Really quite simple to implement these days as the power and voltage requirements of devices have dropped.. I could make a radio or torch PSU which would pick up and rectify power from an induction loop running in the walls or floors of a building. Like radio broadcasts tho.. there is one really big drawback. Once the power is radiated anybody can use it, so it needs to be given free, and to do that we need unlimited free power.
More likely all they are after is "remote wireless power transmission" patents so yet again they can hold us all to ransom by patenting pre-existing technology!
the process has held battery and super electricity(Tesla) back at least 100 years, but then again so has motive to work on things that put food on the table so you can further dev it, its a viscous cycle humanities fickle interest that is.
if i get to blow stuff up, im a happy man? ever seen a porcelain toilet explode. i have its so cool one second it cracks every where then when you think its safe you get porcelain shards every where.
varnull, you are showing you age with the crystal sets.
Yes, at low power levels microwaves/radio waves are perfectly safe. They contain less energy (safer) than visable light. At high energy they cook meat.
However, I like the magnetic force for transmitting power because it dissapates so rapidly. You would need to make contact to get enough power to do anything. Radio waves dissapate less than visable light.
