5 ms·

Imagine a charger that homes in on your mobile devices and charges them to a certain distance, without harming objects in between the source and destination. Th

by deletes 13y ago

Imagine a charger that homes in on your mobile devices and charges them to a certain distance, without harming objects in between the source and destination. That way you could have them everywhere and battery would be hardly needed.

simonh 13y ago
Because what I really need in my life is high energy radiation beamed directly at an object I generally keep a few cm from my reproductive organs.
- StavrosK 13y ago
  You luddites are why we're never getting supermutants.
- deletes 13y ago
  Technology and people change. What was considered dangerous in the past is today made possible with advanced technologies. When the risks are made negligible by reliability and advances such devices will be used.
  - forgottenpaswrd 13y ago
    "What was considered dangerous in the past is today made possible with advanced technologies." What was considered dangerous in the past is dangerous today. It is what was not considered dangerous in the past what we know today it is dangerous, like x-rays(they used it with pregnant women and basically killed a lot of people for ten years), powerful RADAR, tobacco(yes you can see advertisements on youtube of how innocuous it was), benzene, asbestos, pfcs, nuclear radiation(Curie couple died from that). It was only after being proven that a technology kills thousands of people, that this tech is controlled. For me it is a great idea to find guinea pigs for testing new technologies, but don't test it with me against my will sending radiated energy in the air.
    - deletes 13y ago
      By recognizing what materials/radiation are dangerous, we get to know how to use them in a better and safer manner. It would take a ignorant person, to state that as certain technology improves, it becomes more dangerous.
- akiselev 13y ago
  No, what you really need is an understanding of wireless power transmission and non-ionizing radiation. Hint: There's a reason this requires METAMATERIALS to work over any reasonable distance.
  - sp332 13y ago
    Non-ionizing radiation will change the temperature of water (or your body) if it's in the way. And testes need to be closely temperature-regulated, so this could be a real issue.
    - XorNot 13y ago
      Microwaves yes. But inductive coupling? No - it won't even interact, which is what this article is about.
      - goldenkey 13y ago
        Would be a problem for metals. You really can't win when you're talking about high energy radiation.
      - forgottenpaswrd 13y ago
        Excuse me. Inductive coupling means a couple of inductances interact with each other. This is the reason it is called "coupling". And yes, this interaction means photons, depending of the frequency of the resonator of higher or lower frequency. They use a medium, a channel, the most efficient one is ferrite, but it could be the air, that usually it is very inefficient because the electromagnetic radiation escapes and is absorbed by other elements or just dissipated. You could improve efficiency making it use resonance, that is you trick your design so in normal circumstances you reuse the electromagnetic energy that is reflected by the geometry of the space. The problem (of all open systems instead of closed circuits)is what happens when your body acts as a lower impedance for this radiation than the medium. It could in fact absorb a big amount of energy on a very small amount of time. Geometry of the body is very complex, small parts of your body could resonate with some frequencies, and when there is noise like in transitories you add lots of frequencies.

by deletes 13y ago

simonh 13y ago

Because what I really need in my life is high energy radiation beamed directly at an object I generally keep a few cm from my reproductive organs.

StavrosK 13y ago
You luddites are why we're never getting supermutants.
deletes 13y ago
Technology and people change. What was considered dangerous in the past is today made possible with advanced technologies. When the risks are made negligible by reliability and advances such devices will be used.
- forgottenpaswrd 13y ago
  "What was considered dangerous in the past is today made possible with advanced technologies." What was considered dangerous in the past is dangerous today. It is what was not considered dangerous in the past what we know today it is dangerous, like x-rays(they used it with pregnant women and basically killed a lot of people for ten years), powerful RADAR, tobacco(yes you can see advertisements on youtube of how innocuous it was), benzene, asbestos, pfcs, nuclear radiation(Curie couple died from that). It was only after being proven that a technology kills thousands of people, that this tech is controlled. For me it is a great idea to find guinea pigs for testing new technologies, but don't test it with me against my will sending radiated energy in the air.
  - deletes 13y ago
    By recognizing what materials/radiation are dangerous, we get to know how to use them in a better and safer manner. It would take a ignorant person, to state that as certain technology improves, it becomes more dangerous.
akiselev 13y ago
No, what you really need is an understanding of wireless power transmission and non-ionizing radiation. Hint: There's a reason this requires METAMATERIALS to work over any reasonable distance.
- sp332 13y ago
  Non-ionizing radiation will change the temperature of water (or your body) if it's in the way. And testes need to be closely temperature-regulated, so this could be a real issue.
  - XorNot 13y ago
    Microwaves yes. But inductive coupling? No - it won't even interact, which is what this article is about.
    - goldenkey 13y ago
      Would be a problem for metals. You really can't win when you're talking about high energy radiation.
    - forgottenpaswrd 13y ago
      Excuse me. Inductive coupling means a couple of inductances interact with each other. This is the reason it is called "coupling". And yes, this interaction means photons, depending of the frequency of the resonator of higher or lower frequency. They use a medium, a channel, the most efficient one is ferrite, but it could be the air, that usually it is very inefficient because the electromagnetic radiation escapes and is absorbed by other elements or just dissipated. You could improve efficiency making it use resonance, that is you trick your design so in normal circumstances you reuse the electromagnetic energy that is reflected by the geometry of the space. The problem (of all open systems instead of closed circuits)is what happens when your body acts as a lower impedance for this radiation than the medium. It could in fact absorb a big amount of energy on a very small amount of time. Geometry of the body is very complex, small parts of your body could resonate with some frequencies, and when there is noise like in transitories you add lots of frequencies.