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How to go
faster than light.
"Scotty, push it right to the edge!"
Speaker
@pruet
How to go faster than light?
● Light speed is not fast enough.
○ Milkyway's diameter is about 10^5 light-year
○ Andromeda galaxy is about 2.5 megalight-year away
● Physical limitation
○ General relativity said that ... " no object can
accelerate to the speed of light in the reference frame
of any coincident observe".
● How to avoid physical limitation
○ Move to another space -> hyperspace jump -> "Jump"
○ Don't move yourself -> move the space -> "Push"
Jump to where?
● To higher space/dimension (i.e.,
hyperspace)
○ 4th dimension, 5th dimension, ...
○ How?
■ Blackhole/whitehole
■ Wormhole (Einstein-Rosen Bridge)
○ Theoretically impossible by now (update me please)
■ require exotic material with negative energy
density.
○ Who uses this?
■ Star wars folk...
. ╮(─▽─)╭
http://images3.wikia.nocookie.
net/__cb20060328020141/hyperspace/images/8/80/Worm3.GIF
Push what?
● Basically your spaceship does nothing, but
the space around you is pushed forward,
then you follow the flow.
○ Think about surfing
How?
● By contracting and expanding
the space, before and behind
the spaceship.
○ "Warp bubble"
● Based on "Alcubierre drive" theory,
formulated in 1994 (~ 30 years after the
original Star Trek series)
● Alcubierre drive suggests that by using very
high energy, we can collapse and expanding
the space.
○ Problem: very large amount of energy required
How?
● OK, how much of that?
○ To move a small spaceship across Milkyway, you
need 10^64 kg mass-energy equivalence (Einstein
goes here)
○ How large is 10^64 kg? it's more that estimated
mass of the universe itself.
● So, is it also theoretically impossible ?
○ First, we can use "negative mass" to generate that
amount of energy.
■ Btw, negative mass is not "anti-matter", generally
speaking, anti-matter has positive mass.
■ Negative mass is theoretically possible
In Startrek?
● matter/anti-matter annihilation
● Fictional "dilithium" crystals is used separate
matter/anti-matter.
How soon?
● According to NASA, by carefully designing
the drive engine, we requires very small
amount of energy (energy-mass equal to the
mass of Voyeger spacecraft)
○ 10 times faster than light
○ They are testing the idea now at Johnson Space
Center now.
■ Using laser to expand/contract the space
■ More info, google "White–Juday warp-field
interferometer"
● So how soon?
○ Maybe before we send that guy to Mars .

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How to go faster than light/ barcamp chiangmai 6 @pruet

  • 1. How to go faster than light. "Scotty, push it right to the edge!"
  • 3. How to go faster than light? ● Light speed is not fast enough. ○ Milkyway's diameter is about 10^5 light-year ○ Andromeda galaxy is about 2.5 megalight-year away ● Physical limitation ○ General relativity said that ... " no object can accelerate to the speed of light in the reference frame of any coincident observe". ● How to avoid physical limitation ○ Move to another space -> hyperspace jump -> "Jump" ○ Don't move yourself -> move the space -> "Push"
  • 4. Jump to where? ● To higher space/dimension (i.e., hyperspace) ○ 4th dimension, 5th dimension, ... ○ How? ■ Blackhole/whitehole ■ Wormhole (Einstein-Rosen Bridge) ○ Theoretically impossible by now (update me please) ■ require exotic material with negative energy density. ○ Who uses this? ■ Star wars folk... . ╮(─▽─)╭
  • 6. Push what? ● Basically your spaceship does nothing, but the space around you is pushed forward, then you follow the flow. ○ Think about surfing
  • 7. How? ● By contracting and expanding the space, before and behind the spaceship. ○ "Warp bubble" ● Based on "Alcubierre drive" theory, formulated in 1994 (~ 30 years after the original Star Trek series) ● Alcubierre drive suggests that by using very high energy, we can collapse and expanding the space. ○ Problem: very large amount of energy required
  • 8. How? ● OK, how much of that? ○ To move a small spaceship across Milkyway, you need 10^64 kg mass-energy equivalence (Einstein goes here) ○ How large is 10^64 kg? it's more that estimated mass of the universe itself. ● So, is it also theoretically impossible ? ○ First, we can use "negative mass" to generate that amount of energy. ■ Btw, negative mass is not "anti-matter", generally speaking, anti-matter has positive mass. ■ Negative mass is theoretically possible
  • 9. In Startrek? ● matter/anti-matter annihilation ● Fictional "dilithium" crystals is used separate matter/anti-matter.
  • 10. How soon? ● According to NASA, by carefully designing the drive engine, we requires very small amount of energy (energy-mass equal to the mass of Voyeger spacecraft) ○ 10 times faster than light ○ They are testing the idea now at Johnson Space Center now. ■ Using laser to expand/contract the space ■ More info, google "White–Juday warp-field interferometer" ● So how soon? ○ Maybe before we send that guy to Mars .