Sounds like he's having you on.
Someone at work says you can buy 240v sockets that you can fit any where in a house and a master socket that sends the power to them by micro waves
has anyone see such a thing ?
Jacko
Gulable fool by the sounds of it..
Tesla invented wireless transmission of ac leccy way back but its never took off.
Complete tosh
Sounds like he's having you on.
quote:
Originally posted by r1_pete
Complete tosh
Sounds like he's having you on.
quote:
Originally posted by jacko
quote:
Originally posted by r1_pete
Complete tosh
Sounds like he's having you on.
He's not having me on
Yes because you lot know every thing 
Yes your definitely gullible 
To me it sounds like a variation of something that is real. Someone has made a camera that is able to power itself from the same wifi network that it
connects to. The idea is that it can be mounted remotely and self power.
However, the scale is a little off powering mains voltage. For example, it takes just over half an hour to gather enough power to take one photo and
transmit it!!
So not quite complete tosh, but quite a significant exaggeration!
You can buy a plate that you plaster into the wall that can run a small TV (you need a large area for the receptor) from a couple of inches away, in the real world not practical.
crystal sets used 'remote power' over 100 years ago
Ive got some in the spare room, never managed to get them working 
But I did have a plug socket in my downstairs toilet, that was not powered by either mine or neighbours house, (were a semi)
I had it disconnected years ago, on the advice of an electrician to avoid and hassle,
quote:
Originally posted by jacko
Someone at work says you can buy 240v sockets that you can fit any where in a house and a master socket that sends the power to them by micro waves
has anyone see such a thing ?
Jacko
This was in the news recently as a very new technology. As you can see from the majority of replies, people find it hard to believe these things even
when we are used to amazing progress. I remember two times, ages ago, when i told someone about caller id and anpr, they called me gullible for
believing it.
However, your friend has got the details a bit exaggerated.
http://www.bbc.co.uk/news/technology-31091285
Wireless charging of phones and PlayStation controllers is a thing, but is much slower than plugging it in. Has to be very close too
I've yet to try and stick fluorescent tubes in the ground under power lines! That appears to work
Think what 3 minutes in an 800w micro wave does to your dinner. Then imagine what 3kw will do to you when it's beam to you socket.
A physics student was done some years back for building what was effectively half a transformer and sapping power from the grid from high tension
cables near his residence
Respect
Have you seen the fluorescent tubes just shoved in the soil under a pylon that glow just from the electrical field grounding to earth
It still surprises me just how little many people know about basic physics. The entire wireless power transmission has been massively overhyped in
the last few years, with investors pouring money into ridiculous schemes that are clearly doomed to failure.
Cell phone charging from WiFi is a prime example. The usable power obtainable from the average WiFi router is very small even right next to the
antenna, and the inverse square law means it falls very quickly as you move away. A few calculations show it would take months or years for a single
charge. Harvesting energy over long periods for micropower devices this way is fine, but cell phones are not in this category.
Meredith Perry has suckered 10's of millions of dollars out of (frankly retarded) investors for her ultrasonic power
transfer. She did a TEDx talk suggesting you didn't need to have any engineering skills to invent and develop revolutionary technologies, and
now calls herself a "Technology Innovator". This is quite amusing as her scheme is so obviously doomed to failure that all the engineers
she employed to design it have now left
Resonant inductive power transfer (e.g. the QI chargers) are relatively simple and well proven, but work only over short distances and the efficiency
is still well below that of a simple cable.
Microwave energy transfer is entirely possible, and quite large amounts of power can be transferred for clear line of sight applications over fairly
long distances e.g. 1km (diffraction limited, so antenna sizes become impractical at very long distances). However it is not practical for beaming
power around a house, at the sort of power levels you'd want from a 13amp socket the power density in the beam would be very unsafe and any metal
objects in the path would absorb lots of energy and get hot.