[QUOTE=leontodd;21719117]By the time they figure that out we'll all be dead[/QUOTE]
The bees will die out and a solar storm will arrive apparently. A possible cooling of a ice age.
From food storages to power outs to freezing cold.
Well, Hawkings officially lost it.
[QUOTE=JohnnyMo1;21718698]The calculation is wrong. At 98% of c, 1 day isn't 1 year on earth.[/QUOTE]
Yeah i calculated it and got around 5 days lol
On a side note: Length contraction and mass dialation mess with my head worse than time dilation for some reason.
[editline]12:33PM[/editline]
Wow i've been beaten twice.
[QUOTE=JohnnyMo1;21728123]Lol, I love all the disagrees I got for this.
[IMG]http://i43.tinypic.com/11ki5w7.gif[/IMG]
I know more about physics than you, Facepunch. Deal with it.
[editline]12:00AM[/editline]
So yeah, that.[/QUOTE]
I think the article quoted the documentary wrong, I think he says in the documentary that you need about 99.99.. % of c to get that ratio (1 day on spaceship = 1 year on earth).
Not saying your stuff isn't correct, just that the article isn't right.
[QUOTE=JohnnyMo1;21728123]Lol, I love all the disagrees I got for this.
[IMG]http://i43.tinypic.com/11ki5w7.gif[/IMG]
I know more about physics than you, Facepunch. Deal with it.
[editline]12:00AM[/editline]
So yeah, that.[/QUOTE]
How arbitrarily close to the speed of light can velocity come in reality, though? Like, yes, the limit in THEORY is the speed of light, but, realistically what's the limit you could get a spaceship to go to? How many decimal places can we put the velocity to before it just becomes so minutely close to 1 that any more increase is just a pipe-dream?
Obviously it depends on your power source and stuff, so let's say a GIGANTIC solar sail, a gargantuan Bussard ramjet or an antimatter engine (or a combination of the three) or something.
Who is this Hawking you speak of?
[IMG]http://filesmelt.com/dl/hawkking.jpg[/IMG]
[QUOTE=Block;21721911]Black hole is not a hole. Black hole is an object dense enough so that the escape velocity from it's surface is greater than the speed of light.[/QUOTE]
Yes I know, but if you look at it in space time it look like this.
[img]http://www.faculty.iu-bremen.de/course/fall02/c210101/students/BlackHoles/Black%20holes%20and%20Schwartzschild%20geometry_files/image030.gif[/img]
GOD FUCKING DAMNIT!!!!
[QUOTE=bravehat;21733086]Yes I know, but if you look at it in space time it look like this.
[img]http://www.fortunecity.com/emachines/e11/86/graphics/space/SPACE3.gif[/img][/QUOTE]
Fortune city webhosting?
[QUOTE=rosthouse;21732463]I think the article quoted the documentary wrong, I think he says in the documentary that you need about 99.99.. % of c to get that ratio (1 day on spaceship = 1 year on earth).
Not saying your stuff isn't correct, just that the article isn't right.[/QUOTE]
In 1 days travel, 365 days have to pass.
So that means
T ' = 365
365 = t / sqrt(1-(v/c)^2)
Insert speed of light. C = 1. (don't tell me that is wrong or you are retarded)
365 = 1 / sqrt(1-v^2)
365 * sqrt(1-v^2) = 1
sqrt(1-v^2) = 1/365
1-v^2 = (1/365)^2
1-v^2 = 7.50609871 × 10^-6
1-7.50609871 × 10^-6 = v^2
sqrt(1-7.50609871 × 10^-6) = v
v = 0.999996247 = 99.9996247 %
And it has to be exactly that number. You might think a XX.XX9% doesn't matter but it does.
99.99% gives a 70 day difference.
[QUOTE=Swebonny;21734089]In 1 days travel, 365 days have to pass.
So that means
T ' = 365
365 = t / sqrt(1-(v/c)^2)
Insert speed of light. C = 1. (don't tell me that is wrong or you are retarded)
365 = 1 / sqrt(1-v^2)
365 * sqrt(1-v^2) = 1
sqrt(1-v^2) = 1/365
1-v^2 = (1/365)^2
1-v^2 = 7.50609871 × 10^-6
1-7.50609871 × 10^-6 = v^2
sqrt(1-7.50609871 × 10^-6) = v
v = 0.999996247 = 99.9996247 %
And it has to be exactly that number. You might think a XX.XX9% doesn't matter but it does.
99.99% gives a 70 day difference.[/QUOTE]
Indeed. Once you get up there in velocity even a .0000001% change gives huge differences in the time dilation.
[editline]11:36AM[/editline]
I'm willing to bet it's the article that is in error because the Master of the Universe, High Physicist-Emperor Hawking would surely know this already.
1-((1/3)*3) (I mean that 0.99999~ number, not 1) would make the biggest difference, while 1 itself stops time. Amiright? :D
[QUOTE=JohnnyMo1;21734621]Indeed. Once you get up there in velocity even a .0000001% change gives huge differences in the time dilation.
[editline]11:36AM[/editline]
I'm willing to bet it's the article that is in error because the Master of the Universe, High Physicist-Emperor Hawking would surely know this already.[/QUOTE]
Of course it's the stupid articles fault. Here's another thing I don't understand. Are we really only ~80 light years from the edge of our galaxy?
"Having taken six years to reach its full speed of 98 per cent of the speed of light (650million miles per hour), a day on board the ship would be equivalent to a year on Earth, he said, allowing those on board to reach the [b]edge of the galaxy in just 80 years.[/b]"
[QUOTE=Swebonny;21734089]In 1 days travel, 365 days have to pass.
So that means
T ' = 365
365 = t / sqrt(1-(v/c)^2)
Insert speed of light. C = 1. (don't tell me that is wrong or you are retarded)
365 = 1 / sqrt(1-v^2)
365 * sqrt(1-v^2) = 1
sqrt(1-v^2) = 1/365
1-v^2 = (1/365)^2
1-v^2 = 7.50609871 × 10^-6
1-7.50609871 × 10^-6 = v^2
sqrt(1-7.50609871 × 10^-6) = v
v = 0.999996247 = 99.9996247 %
And it has to be exactly that number. You might think a XX.XX9% doesn't matter but it does.
99.99% gives a 70 day difference.[/QUOTE]
Yes, exactly, that's why I didn't posted 99.99% but instead 99.99..% :buddy:
I didn't know the exact value, but that it is something more then 99.99%.
[QUOTE=Swebonny;21734787]Of course it's the stupid articles fault. Here's another thing I don't understand. Are we really only ~80 light years from the edge of our galaxy?
"Having taken six years to reach its full speed of 98 per cent of the speed of light (650million miles per hour), a day on board the ship would be equivalent to a year on Earth, he said, allowing those on board to reach the [b]edge of the galaxy in just 80 years.[/b]"[/QUOTE]
I believe they meant 80 years from the reference frame of the ship.
No I mean if they travel 80 years at the speed of C and reaches the edge of the galaxy. Does that mean that Earth(solar system) is positioned very far away from the center of the galaxy.
[QUOTE=Swebonny;21735179]No I mean if they travel 80 years at the speed of C and reaches the edge of the galaxy. Does that mean that Earth(solar system) is positioned very far away from the center of the galaxy.[/QUOTE]
Given that the universe has an edge. What if the universe is infinite?
Maybe it was just a saying of Hawking?
[QUOTE=Swebonny;21731217]Wow 20 disagrees, no wonder the majority of the science threads here are psuedoscientific.
FP I am disappointed, didn't you all have an IQ of 160 and going to attend MIT.[/QUOTE]
Hey, it's because I specialize in Astronomy, cosmology and evolutionary biology. :saddowns:
Nah, I agree, awful lot of pseudoscietific nonsense in the science threads.
[QUOTE=JohnnyMo1;21734621]Indeed. Once you get up there in velocity even a .0000001% change gives huge differences in the time dilation.
[editline]11:36AM[/editline]
I'm willing to bet it's the article that is in error because the Master of the Universe, High Physicist-Emperor Hawking would surely know this already.[/QUOTE]
Actually, in the episode about time travel he said that. Probably an error in the script.
[editline]08:38PM[/editline]
[QUOTE=Swebonny;21735179]No I mean if they travel 80 years at the speed of C and reaches the edge of the galaxy. Does that mean that Earth(solar system) is positioned very far away from the center of the galaxy.[/QUOTE]
The Earth is pretty close to the middle, I'm sure the nearest edge is at least 19,000 light years away.
And the thing about the trip taking 80 years, I'm sure he meant 80 years-subjective for the trip to edge would take almost/over twenty thousand years-objective.
if the ship travels 99.8% of the speed of light and they switch on the headlights
what speed does the light travel at :smug:
the answer is simple.
What I don't get is, is how going very fast would make you slow down.
Look at all this math and physics up in hurrrr.
[QUOTE=carcarcargo;21738005]What I don't get is, is how going very fast would make you slow down.[/QUOTE]
To preserve the speed of light. Imagine that you're moving in a ship at 99,999% of c. Then, you can get up, pull out a laser pointer, and press the button. In theory you should see the beam slowly moving across the room because you are moving at relativistic speeds (High percentage of the speed of light). In theory, you could just walk past it. Time dilation slows down time to make sure nothing can go faster than light.
JohnnyMo1, you're the man
This thread is going pretty well, keep going!
[QUOTE=Swebonny;21734089]In 1 days travel, 365 days have to pass.
So that means
T ' = 365
365 = t / sqrt(1-(v/c)^2)
Insert speed of light. C = 1. (don't tell me that is wrong or you are retarded)
365 = 1 / sqrt(1-v^2)
365 * sqrt(1-v^2) = 1
sqrt(1-v^2) = 1/365
1-v^2 = (1/365)^2
1-v^2 = 7.50609871 × 10^-6
1-7.50609871 × 10^-6 = v^2
sqrt(1-7.50609871 × 10^-6) = v
v = 0.999996247 = 99.9996247 %
And it has to be exactly that number. You might think a XX.XX9% doesn't matter but it does.
99.99% gives a 70 day difference.[/QUOTE]
That calculation is correct.
[QUOTE=piranhamatt2;21737745]if the ship travels 99.8% of the speed of light and they switch on the headlights
what speed does the light travel at :smug:
the answer is simple.[/QUOTE]
The speed of light.
[QUOTE=JohnnyMo1;21728123]Lol, I love all the disagrees I got for this.
[IMG]http://i43.tinypic.com/11ki5w7.gif[/IMG]
I know more about physics than you, Facepunch. Deal with it.
[editline]12:00AM[/editline]
So yeah, that.[/QUOTE]
Yeah but Stephen Hawking knows more about physics that you. Deal with it.
[QUOTE=HolyCrusade;21738479]Yeah but Stephen Hawking knows more about physics that you. Deal with it.[/QUOTE]
It was the article..
[QUOTE=HolyCrusade;21738479]Yeah but Stephen Hawking knows more about physics that you. Deal with it.[/QUOTE]
If you want to put it that way then I could say Einstein know more physics than Hawking. Deal with it.
And most likely an error made by the journalist.
[QUOTE=starpluck;21738520]It was the article..[/QUOTE]
And in the episode of Into the Universe.
[QUOTE=Eudoxia;21738552]And in the episode of Into the Universe.[/QUOTE]
Yes probably an error in the script as you said, then the journalist quoted it from there.
Anyhow it's wrong.
[editline]07:48PM[/editline]
Avon earth is calling!
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