5 ms·

Can someone explain what are some consequences and real world applications of this?

dschuetz 8y ago
There certainly are consequences concerning science and research of electromagnetic fields and radiation, fusion power research and application. Direct real world applications? There are none, really. Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity?
- paganel 8y ago
  > Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity? There are lots of metallic big things on different types of battlefields, like tanks or even aircraft carriers, it would be really helpful for the opposing sides to be able to “evaporate” them. Not sure how close to implementing this as a weapon we are, though, probably not that much.
  - dschuetz 8y ago
    I see, my imagination is lacking weaponry.
  - rangibaby 8y ago
    > There are lots of metallic big things on different types of battlefields, like tanks or even aircraft carriers, it would be really helpful for the opposing sides to be able to “evaporate” them. Not sure how close to implementing this as a weapon we are, though, probably not that much. 70 years ago
- speeder 8y ago
  When I read the first article about his some days ago, the authors of the experiment were happy with the result, and said it is useful for fusion power. Seemly some fusion power reactor designs DO need a temporary very strong magnetic field.
- amelius 8y ago
  > Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity? Hmm, does that mean it would evaporate a Faraday cage?
  - dschuetz 8y ago
    It depends on dimensions of the cage, of course, and in case the cage is not grounded the resulting inductive eddy currents could easily melt/ blow up the cage. Provided the magnetic flux is strong enough the cage also could easily be evaporated/desintegrated. See the Z-Pinch project of Sandia Labs where a tiny tungsten cage was evaporated in femtoseconds iirc. https://www.sandia.gov/z-machine/ https://www.sandia.gov/z-machine/
tyingq 8y ago
Rail gun.
kmm 8y ago
The applications lie not in the magnetic field directly, but its usage in research, allowing us to develop better technologies. By knowing how a material or structure behaves in such gigantic fields, we develop a better understanding of it, which then gets applied in the real world.
cerealbad 8y ago
Mikhail Erements at Max Planck is using diamond anvils to crush hydrogen at 495GPa to obtain a theoretically predicted room temperature superconducting metallic hydrogen solid. The pressure generated by this electromagnetic implosion experiment is of the same order of magnitude. Plasma inserted in a liquid metal cylinder which undergoes EMFC has been talked about as a potential fusion generator since the 1950s with little experimental success, due to engineering limitations.
- EthanHeilman 8y ago
  What is the reason why can't you use a magnet directly to crush charged hydrogen particles? or lasers for that matter?
  - dschuetz 8y ago
    Because there is no way to build a machine to generate continuously very strong magnetic fields (the limit is just below 40T iirc, by room temperature, Bitter Electromagnets). This is magnitudes lower than a 1200T pulse in that article. 40T is barely enough to lift up a small animal and keep it suspended in the air, because of the blood iron and water. How would you continuously crush hydrogen with that? The magnetic flux is way to weak on the atomic scale. One could argue, why not use superconducting electromagnets (used in fusion machines), but surprisingly the limit is lower there, something above 20T! So, pulses are much stronger, but also very short. Continuously strong fields need insane machinery which might have thermodynamic limits of what is possible to achieve.
    - EthanHeilman 8y ago
      Thanks for your answer. I'm really curious how practical metallic hydrogen it. >How would you continuously crush hydrogen with that? Why do you the crush to be continuous? I thought the idea of metallic hydrogen was that it is stable once you get it in a metallic state.
      - dschuetz 8y ago

There certainly are consequences concerning science and research of electromagnetic fields and radiation, fusion power research and application. Direct real world applications? There are none, really. Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity?

paganel 8y ago
> Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity? There are lots of metallic big things on different types of battlefields, like tanks or even aircraft carriers, it would be really helpful for the opposing sides to be able to “evaporate” them. Not sure how close to implementing this as a weapon we are, though, probably not that much.
- dschuetz 8y ago
  I see, my imagination is lacking weaponry.
- rangibaby 8y ago
  > There are lots of metallic big things on different types of battlefields, like tanks or even aircraft carriers, it would be really helpful for the opposing sides to be able to “evaporate” them. Not sure how close to implementing this as a weapon we are, though, probably not that much. 70 years ago
speeder 8y ago
When I read the first article about his some days ago, the authors of the experiment were happy with the result, and said it is useful for fusion power. Seemly some fusion power reactor designs DO need a temporary very strong magnetic field.
amelius 8y ago
> Where would you need 1000 T which basically makes everything metallic evaporate in it's vicinity? Hmm, does that mean it would evaporate a Faraday cage?
- dschuetz 8y ago
  It depends on dimensions of the cage, of course, and in case the cage is not grounded the resulting inductive eddy currents could easily melt/ blow up the cage. Provided the magnetic flux is strong enough the cage also could easily be evaporated/desintegrated. See the Z-Pinch project of Sandia Labs where a tiny tungsten cage was evaporated in femtoseconds iirc. https://www.sandia.gov/z-machine/ https://www.sandia.gov/z-machine/

tyingq 8y ago

Rail gun.

kmm 8y ago

The applications lie not in the magnetic field directly, but its usage in research, allowing us to develop better technologies. By knowing how a material or structure behaves in such gigantic fields, we develop a better understanding of it, which then gets applied in the real world.

cerealbad 8y ago

Mikhail Erements at Max Planck is using diamond anvils to crush hydrogen at 495GPa to obtain a theoretically predicted room temperature superconducting metallic hydrogen solid. The pressure generated by this electromagnetic implosion experiment is of the same order of magnitude. Plasma inserted in a liquid metal cylinder which undergoes EMFC has been talked about as a potential fusion generator since the 1950s with little experimental success, due to engineering limitations.

EthanHeilman 8y ago
What is the reason why can't you use a magnet directly to crush charged hydrogen particles? or lasers for that matter?
- dschuetz 8y ago
  Because there is no way to build a machine to generate continuously very strong magnetic fields (the limit is just below 40T iirc, by room temperature, Bitter Electromagnets). This is magnitudes lower than a 1200T pulse in that article. 40T is barely enough to lift up a small animal and keep it suspended in the air, because of the blood iron and water. How would you continuously crush hydrogen with that? The magnetic flux is way to weak on the atomic scale. One could argue, why not use superconducting electromagnets (used in fusion machines), but surprisingly the limit is lower there, something above 20T! So, pulses are much stronger, but also very short. Continuously strong fields need insane machinery which might have thermodynamic limits of what is possible to achieve.
  - EthanHeilman 8y ago
    Thanks for your answer. I'm really curious how practical metallic hydrogen it. >How would you continuously crush hydrogen with that? Why do you the crush to be continuous? I thought the idea of metallic hydrogen was that it is stable once you get it in a metallic state.
    - dschuetz 8y ago