Was just wondering, would it be possible in theory to have a advanced radio that was capable of emitting any frequency in the electromagnetic spectrum using a single antenna? Because the thought of a normal or even special antenna putting out pure light of a certain frequency without other wavelengths or heating up would be interesting and weird.
Full spectrum radio
- Thread starter Radiation
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Yeah but just a pure sine wave.
Surely blasting gamma rays into your face wouldn;t be a great idea.
And probbably not possible, because of the very differnt condition needed for each wave type.
Why though if its all one spectrum it should be possible to oscillate EM to any wavelength?
because it takes a huge amount of energy to make things like x-rays etc and they arn't made the same way as normal radio waves, I can't even think how much power it would take to make light/x rays/ gamma rays the same way you make radio waves. (actually i don't think it;s feasible to make gamma rays without a radioactive material/reaction.)
Look up how x-rays are produced, then how radio waves are then think how you're going to reconcile that into one device.
Also some basic A level physics will help with working out energies etc.
For xrays and gamma, you really need nuclear reactions tbh. So those are impossible.
Even for visible and UV, the antenna would need to be glowing hot. Also common sense will tell you that visible light doesn't get far in the open for communication.
sid
Even for visible and UV, the antenna would need to be glowing hot. Also common sense will tell you that visible light doesn't get far in the open for communication.
sid
i am talking in theory here, i know its not possible for many reasons now because we don't have stuff that can do it without jumping to different materials and ways but in theory as its all just EM you could make it oscillate at any frequency, right?
Edit: its not about usefulness just possibility.
Edit: its not about usefulness just possibility.
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doubt it, unless you can make a material wich can get as hot as the sun, and you don;t mind using a small cities worth of power you've got no chance, of making any of the short wavelengths.
How do you propose this antnna would work anyway? (ie like a standard radio antenna, a laser/maser design, electron beem + target. etc).
But anyway you said
They're called lasers.
So 100% efficency?
Then no not going to happen.
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So for broadcast frequencies you would require a single antenna to cover 150 kHz to 12 GHz. If you do some reading on antenna theory and design you will most probably come to one conclusion, no it can't be done. I will leave it for you to work out why.
There was a point to my thoughts but this isn't the best place for it, never mind.
Though why would it take a citys worth of power when i can produce light from a small torch? lol
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Sticky tape produces x-rays when it's unravelled.
in a vacume
Sure, now go produce some gamma rays in a reasonable quantity without radioactive decay
This reminds me of a drunken conversation I had a while ago where I pondered whether alien species could perceive things differently to us, and whether they could possibly "see" what to us is the audible spectrum. I ended up with a sore head (not least because of the beer)
As for what the OP is on about, you'd need a hell of an ATU for that
What?
As for what the OP is on about, you'd need a hell of an ATU for that
Sticky tape produces x-rays when it's unravelled.
What?
Humans can do that too
I belive it's called synesthesia, you can get it from drugs
And you don't see anything meaningfull, odd colours/shapes, and spaces.