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#1 2011-10-07 20:00:55
- jji7skyline
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- Registered: 2010-03-08
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An interesting theory
I've been thinking about the Universe and have thought up this interesting theory on velocity and inertia...
Theory of relative velocity
According to my theory, velocity or speed is only relative. You may drive your car 60kph or even 60mph but you're not really moving at that velocity. You're only moving at that velocity on Earth. Compared to the Sun, you could be moving much faster, because you're on the Earth which is hurtling through space at almost 80 000mph. But is it really? The sun is rotating in the milky way galaxy.
So when you think about it, in the universe, you're never stop.
Let's put it this way, you are a planet an you suddenly see a asteroid blast past you at around 10 000 m/s. But is it really moving that fast? Maybe it wasn't moving at all... if that's possible and you were moving 10 000m/s which made it seem that the asteroid was moving at 10 000 m/s. Maybe you were both moving towards each other at 5 000 m/s?
Then why is it that we seem to slow down because of friction on the earth? Well, we are slowing because of the friction of the air around us, but that is already moving anyway! Stopped for us could be something like 60 000mph when seen from the sun... or something else if seen from another planet!
So basically my theory is that velocity is only relative. Inertia is also relative. Velocity only exists as relative to other objects.
Understand?
Part 2 (The unsolved bit)
So light travels at a set speed. Does that mean that in fact a stopped state exists if the velocity of light is measured? For example if we said that light travels at a speed of 1 but when measured seems to travel at 2, this would mean that the ground is travelling at 1 in the opposite way of the light's travel.
Or is light's speed based on the speed of it's source? Does that mean that light travels at 1 as long as you are moving at the same speed as the light's source, but the light travels at 2 if you were moving at 1 in the opposing direction of the light?
As you can see this bit is unsolved.
Discussify
Last edited by jji7skyline (2011-10-09 00:45:40)
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#5 2011-10-08 06:45:39
- jji7skyline
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Re: An interesting theory
nextstorm wrote:
Harakou wrote:
Um, you've basically described the premise behind Einstein's theory of relativity.
just what i was going to say :C
Oh! I didn't realise!
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#6 2011-10-08 07:12:37
- MyRedNeptune
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Re: An interesting theory
jji7skyline wrote:
nextstorm wrote:
Harakou wrote:
Um, you've basically described the premise behind Einstein's theory of relativity.
just what i was going to say :C
Oh! I didn't realise!
In solving a kinematics or dynamics problem you would pick an inertial frame or reference, with all motion happening in relation to the object that frame is attached to. ^,^
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#7 2011-10-09 00:45:54
- jji7skyline
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Re: An interesting theory
bump
New bit added... the curious bit 
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#8 2011-10-09 01:22:37
- randomnumber53
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- Registered: 2010-05-19
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Re: An interesting theory
Yes, everything is relative, even relativity.
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#9 2011-10-09 03:54:01
Re: An interesting theory
Light isn't relative. If someone was travelling in a space ship at 90% of the speed of light, and then someone shone a torch past the space ship, the light from the torch would still pass the space ship at the speed it pass someone standing still. The speed of light stays the same. It would only be different if someone was travelling faster than the speed of light.
But hey, that's quantum physics for you! (no, really, it is quantum physics)
Last edited by calebxy (2011-10-09 03:54:18)
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#10 2011-10-09 04:05:41
- jji7skyline
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- Registered: 2010-03-08
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Re: An interesting theory
calebxy wrote:
Light isn't relative. If someone was travelling in a space ship at 90% of the speed of light, and then someone shone a torch past the space ship, the light from the torch would still pass the space ship at the speed it pass someone standing still. The speed of light stays the same. It would only be different if someone was travelling faster than the speed of light.
But hey, that's quantum physics for you!
Hey, but how fast is the torch moving? And does that have any effect?
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#11 2011-10-09 04:18:43
Re: An interesting theory
jji7skyline wrote:
calebxy wrote:
Light isn't relative. If someone was travelling in a space ship at 90% of the speed of light, and then someone shone a torch past the space ship, the light from the torch would still pass the space ship at the speed it pass someone standing still. The speed of light stays the same. It would only be different if someone was travelling faster than the speed of light.
But hey, that's quantum physics for you!Hey, but how fast is the torch moving? And does that have any effect?
No, if the torch is staying still.
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