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Join Date: May 2014
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Light Speed

05/18/2014 1:19 PM

why the flight and jet's are not in light speed ?

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#1

Re: lighting speed

05/18/2014 1:34 PM

They would burn to ashes. Only electrons and photons can go that fast.

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#10
In reply to #1

Re: lighting speed

05/19/2014 4:49 AM

'...electrons...can go that fast...'

.

Close, but no cigar, AFAIK...

.

I could be mistaken though, perhaps you are referring to something along the lines of female electrons, and as such any discussion/consideration of mass is excluded?

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#11
In reply to #1

Re: lighting speed

05/19/2014 6:12 AM

If a particle has mass; any mass, no matter how small, it cannot travel at the speed of light. Not electrons, not even neutrinos which have masses so small that no one has yet figured out a way to measure them.

On the evening of 15 October 1991 the Oh-My-God particle - a so-called cosmic ray - was observed as having an energy of approximately 3×1020 eV (50 J). It was a subatomic particle with a kinetic energy equal to that of a baseball traveling at about 100 kilometers per hour (60 mph). The OMGP was most likely a proton traveling very close to the speed of light, at about 0.9999999999999999999999951⋅c, based on its observed energy. At that speed, in a year-long race between light and the particle, the particle would fall behind by only 46 nanometers, or 0.15 femtoseconds (1.5×10−16 s) so yeah, a particle with mass cannot go the speed of light, but it can get damn close.

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#13
In reply to #11

Re: lighting speed

05/19/2014 9:55 AM

Picky picky picky.

You guys failed to account for speedometer error!

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#2

Re: lighting speed

05/18/2014 1:37 PM

they are

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#3

Re: lighting speed

05/18/2014 1:47 PM

Because then the passengers would not have anything to look at.

Okay, here is the not so-zen answer.

No mass can go faster than light. Actually, no mass can go as fast as light.

The problem is that as velocity increases, so does the apparent mass of the object. This is what they call a relativistic problem.

You know that it is easier to push a shopping cart compared to a bus or worse yet, a train.

As mass increases, so does the energy required to push it. It just so happens as you approach the speed of light mass begins to reach infinity. So, you need infinite energy to keep moving it faster.

Just before you reach the speed of light the object has more mass than the whole universe and therefore requires more energy than the whole of the universe to move it.

Now, the other issue is on Earth as you travel through the atmosphere there is drag. Just hold your hand out the car window as you go down the highway and you can feel it being pushed back. That is the force of air molecules striking your hand. Sort of like putting your hand under a small waterfall where the water pushes your hand down.

At even higher speeds the drag from air causes heat as the air molecules slam into that hand faster and faster.

Go fast enough and any aircraft will begin to melt like a meteor in the sky.

Even that speed is a tiny fraction of the speed of light. So long before you have issues with relativistic effects you burn up due to friction of the atmosphere.

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#4

Re: lighting speed

05/18/2014 2:30 PM
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#7
In reply to #4

Re: lighting speed

05/18/2014 4:39 PM

I had a colleague that used to chuckle anytime someone would mention teleportation like Star Trek where the person is converted into energy.

He would say you would need a wire gauge the diameter of Earth to handle all that energy.

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#8
In reply to #7

Re: lighting speed

05/18/2014 4:49 PM

you just need the right ingredients

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#5

Re: lighting speed

05/18/2014 2:35 PM

Because it would take infinite energy to accelerate particles having mass to light speed.

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#6

Re: lighting speed

05/18/2014 3:29 PM

It is the same reason we don't use it for vehicle speedometers, because using a tiny fraction of light speed rather than Kilometres or Miles per hour is just plain silly.

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#9

Re: lighting speed

05/18/2014 5:07 PM

Well, my guess is that it would be too confusing:

"How fast are we going, pops?"

"Oh, around 8.195749e-7c, give or take a few Lorentz contractions."

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#12
In reply to #9

Re: lighting speed

05/19/2014 7:37 AM

How far about apart are the contractions, now?

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#14

Re: Light Speed

05/31/2014 12:58 PM

The human brain does not like dealing a lot of zeros, either in front or back of the decimal point,

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#15
In reply to #14

Re: Light Speed

05/31/2014 2:05 PM

Yet, somehow politicians have overcome this genetic obstacle.

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#16
In reply to #15

Re: Light Speed

06/01/2014 12:17 AM

Politicians ain't human, you have to have a heart to be human, besides they $hit their brains out once or twice a day, thats how they deal with all them damn zeros.

Now if they would only start moving the decimal point to the left

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