How strong would need to be gravitational shield on the ship if would encountered meteorite dust in diameter 50mm² at that speed?


closed as off-topic by ACuriousMind, Kyle Kanos, David Z Jan 17 '15 at 20:14

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    $\begingroup$ So . . . you have a ship with mass traveling near the speed of light and you want to shield it from dust? You won't be able to do that with gravity. $\endgroup$ – HDE 226868 Jan 17 '15 at 19:08
  • $\begingroup$ Please continue, solution's would be? $\endgroup$ – Mitar Jan 17 '15 at 19:18
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    $\begingroup$ What is a gravitational shield? Also, the answer to this question suggests that we probably don't have to worry about dust colliding with spaceships. $\endgroup$ – Kyle Kanos Jan 17 '15 at 19:22
  • $\begingroup$ In process off speeding with car from 0-100km/h in this gravity we feel acceleration only short time. Amount off time to get that speed equivalents to the energy that we feel on our body as the puling force off acceleration. Gravitational shield would be technique that can eliminate or compensate that energy. And that I think could be possible. $\endgroup$ – Mitar Jan 17 '15 at 20:22

This . . . is going to be tough to answer. One of the issues is that it's impossible for non-massless particles to travel at the speed of light; moreover, any object going near it will have an enormous amount of kinetic energy. Add to that the fact that we can't go anywhere near that speed and you have a tough, if not impossible, question to answer.

This can only be reasonably answered by talking about shielding used in spacecraft (admittedly going way slower than the speed of light). There are a few options used on the ISS:

  1. The Whipple bumper: Helpful for impacts with high-velocity objects, this configuration uses a metal plate attached a short distance away from the main structure of the vehicle. The initial "bumper slows down the incoming particle enough so the "catcher" plate behind it can resist the further impact.
  2. The multishock (aka stuffed Whipple) bumper: This is similar to the Whipple bumper, but it inserts more layers of material in between the bumper and the catcher. Like the normal Whipple bumper, the outer bumper is often made with aluminum.
  3. The mesh double bumper: This uses "metallic mesh" to protect the spacecraft.
  • $\begingroup$ Related answer on Space Exploration. $\endgroup$ – HDE 226868 Jan 17 '15 at 19:31
  • $\begingroup$ In any case, the mechanically created protections are only technological achievement. $\endgroup$ – Mitar Jan 17 '15 at 19:37
  • $\begingroup$ What do you mean? $\endgroup$ – HDE 226868 Jan 17 '15 at 19:37
  • $\begingroup$ I'm currently interested in technology that allow speed acceleration from 0 to the 15G in minimal time X. Where could be created gravitational field in the field, the minus 14G in speed acceleration of 15G would still be 1G. $\endgroup$ – Mitar Jan 17 '15 at 20:10

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