## hba 2 years ago I wish so hard for a time machine. Even if it was for once. I wish for it.

1. shubhamsrg

bhaad me gaya CoC ! kyun? ;)

2. hba

Please some one help me build the time machine with your mathematical powers :P

3. ParthKohli

If I had a time machine, I would go to the future in a time where a moderator is online and make him delete this post. ;)

4. hba

Haha :D

5. hba

Good one

6. ParthKohli

And go to the physics section; a time machine is physical -- not mathematical...

7. ParthKohli

Mission Disturb Another Group: successful :D

8. hba

Well I guess it is some how mathematical too.

9. UnkleRhaukus

probability is zero

10. hba

Hmm. Is there any research work being done ?

11. chandhuru

yaa there many research regarding the time ravel rather then time machine. first they want to confirm whether time ravel is possible or not.

12. UnkleRhaukus

really?

13. hba

Um,Is time a vector quantity then ?

14. chandhuru

yaa .. In order to time travel we need to move in the speed of light or greater than that . which is called as cosmic speed limit. recently only they proved that higgs bosons can travel at a velocity greater than light speed . so scientist are trying some means to travel at light speed.

15. shubhamsrg

well i should warn all dont underestimate or forget RAJNIKANTH here.. :|

16. ParthKohli

Yes, Hawkins showed that... but we can only travel to the future

17. hba

\[E \neq mc^2\]

18. chandhuru

yaa @ParthKohli your right .. we can only go to future.. not the past

19. hba

If we go into the future we will not be able to return back ?

20. ParthKohli

Naw.

21. UnkleRhaukus

higgs bosons can Not travel at a velocity greater than light speed. what ever gave you that idea @chandhuru ?

22. chandhuru

Time travelling has different meaning 1. in this case they say there is a parallel universe existing and we can use worm holes as a gate way to reach the other universe. 2. consider the case ur sitting in a train which can move at the speed of light . your train starts moving in the year 2000. as ur moving at the speed of light the time frame moves slowly. ur travelling in that train for 50 years . when the train stops and u come down . u will see the people 50 years older but ur age will less than them. this is because ur time frame moved slowly relatively.

23. ParthKohli

Actually \(c\) is the max possible speed. A proton reached \(\approx 0.99c\) once.

24. ParthKohli

@chandhuru I watched the exact thing on Discovery Channel! :O

25. ParthKohli

It also said that time moves slowly around the pyramids.

26. chandhuru

@UnkleRhaukus they proved recently in large haldron collider (LHC). i read an article and they proved it. U can google it if u want.

27. UnkleRhaukus

no object with mass can reach c

28. chandhuru

they are trying ... see when an object is kept near a black hole it is sucked into it at the velocity of light and the object is converted into energy.

29. ParthKohli

We cannot see an object getting sucked into a black hole.

30. UnkleRhaukus

CERN did a press release about neutrinos exceeding the speed of light a while ago , but this turned out to be a huge embarrassing mistake no object of mass can exceed c

31. UnkleRhaukus

it would require infinite energy

32. chandhuru

@UnkleRhaukus that experiment was carried out twice .. and both the time they got almost same result. neutrinos were travelling at 1/60 seconds faster than light. they did these experiments using atomic clocks to validate it. CERN said that they will do it again so that they can affirmatively say that neutrinos travel faster than light.

33. UnkleRhaukus
34. UnkleRhaukus

also higgs boson is not the same as a neutrino

35. Hrolflinger

Its worth noting here that you could travel backwards in time, its just a more complex theory, in order to go to the future you have to travel faster than the speed of light...

36. UnkleRhaukus

WHICH is IMPOSSIBLE

37. Hrolflinger

ehh to an extent, if you moved through a wormhole and appeared on the other side of the universe you technically traveled faster than the speed of light if you take speed=Distance/time

38. UnkleRhaukus

there is no evidence for wormholes

39. Hrolflinger

sure there is, its a mathematical solution....

40. UnkleRhaukus

mathematical theory IS NOT physical evidence

41. Hrolflinger

alright fair enough however there is no evidence that suggest the impossibility of it correct?

42. Hrolflinger

also if an object gets close to a black hole the gravity pulls it faster than the speed of light then crushes it...

43. UnkleRhaukus

i give up. im too angry now

44. Hrolflinger

at me?

45. sauravshakya

|dw:1356626253968:dw|

46. UnkleRhaukus

that is not how relativity works @sauravshakya

47. Hrolflinger

hey unklerhaukus, can i pm you a question real quick?

48. sauravshakya

49. Hrolflinger

@unkle i cant pm unless you fan me real quick

50. sauravshakya

I would be great if some one explain me how relativity works

51. Hrolflinger

"you put your hand on a hot stove one second seems like an hour, you put your hand on a hot woman one hour seems like one second"

52. Hrolflinger

i sent you a pm that better describes it...

53. sauravshakya

Actually once my physics teacher gave me a book "GENERAL THEORY OF RELATIVITY" But I never read it as I found it very boring and time consuming when I asked this question to him...

54. sauravshakya

So, can u plz make it short and simple?

55. Hrolflinger

relativity... it says that time is relative in the sense that if you move at the speed of light what you see and someone else sees is different due to the observational points

56. UnkleRhaukus

the speed of light in a vacuum is measured the same no matter how fast you are going ,

57. Hrolflinger

i never said the speed of light changes....

58. sauravshakya

And how does it explain my question?

59. UnkleRhaukus

well even if you are moving approximately 2.9x10^8 m/s , and you measure light coming towards you from the front it will be c, and then you measure light coming towards you from the back , and it's it is still c

60. Hrolflinger

because its a lovely question that can be explained through mathematics

61. Hrolflinger

unfortunately i dont know the mathematics behind it i know the logic and philosophy....

62. Hrolflinger

i think im holding a good debate for a 15 year old self educated kid ehh?

63. hba

If i can travel with the speed of light i can teleport :P

64. Hrolflinger

well take it from me im doing good lmao

65. Hrolflinger

@hba not really, speed of light is 186,000 miles per second so you could go 186000 miles in one second....

66. sauravshakya

I guess no mass can travel faster than light as its mass tends to infinity at very higher speed....

67. hba

^ I agree.

68. hba

What is a tachyon then ?

69. sauravshakya

So, infinite energy willl be needed

70. Hrolflinger

a tachyon is an unproven object that doesnt have mass, so therefore doesnt violate the laws of physics....

71. hba

tachyon moves with the speed of light ?

72. hba

But there is no tachyon absorved yet ?

73. Hrolflinger

if tachyons exist they are an exception to the theory of special relativity....

74. UnkleRhaukus

No compelling evidence for tachyons has been found

75. hba

Hmm.

76. Hrolflinger

|dw:1356628459045:dw|

77. Hrolflinger

that drawing represents that you can only travel forward in time if you move faster using this logic if you can move at negative speeds you can go back in time.... Scenario #2: If you move at the speed of light all things will appear to slow down and eventually stop moving, therefore if you move faster the slower things will move, and they will eventually go backwards thus moving you into the past not the future

78. hba

Interesting :)

79. Hrolflinger

both scenarios are equally logical, this is the ONLY problem i have not been able to decide what happens...

80. Hrolflinger

any extra input on what would happen?

81. hba

Not really. Maybe @UnkleRhaukus would have something to say.

82. Hrolflinger

i think i just need a second view on it, i cant find any flaws with the logic in this so i dont know which would happen.... unless both happen... hmm i think i just had an epiphany

83. DLS

u need agar agar solution with 2 moles of cynamisdhejsliol for that

84. hba

^ lol