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Light is amazing ~ some factoids

Light is amazing ~ some factoids

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@divegeester said
It’s great that my OP has stimulated your imagination; have you done any research into your cascade of questions? There are very good answers out there, to your very good questions.
i studied physics to a level always shown a keen interest in science,a big fan of carl sagan and hiesenberg, he had an effect upon me.

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@david-burton said
so let me get this right if you are driving your car at the speed of light and you turn your headlight on ......nothing happens ?
No. Go check out the word "Relativity".

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@divegeester said
Yes it does.

The sun physically and actually rises above the earth’s horizon approximately 8 minutes before we see it which is the amount of time the light takes to reach us.
The sun's motion does not affect our "sunrise".

The rotation of the earth does.

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@david-burton said
so if light has 0 mass why cant it escape a black hole? and surely sun rise is the motion of the earth not the sun actualy moving or amI wrong?and light even with 0 mass can be bent in a vacum.
Gravity bends light. The more gravity you have, the more the light bends.

and

Light doesn't need a vacuum to "get bent" (refract).

Great Big Stees

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“Light” beer is horrible.

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@suzianne said
Gravity bends light. The more gravity you have, the more the light bends.

and

Light doesn't need a vacuum to "get bent" (refract).
gravity cant bend light it bends the space/time and refraction kinks light not a bend.the earths atmosphere actually slows light down.but because a photon has 0 mass I am not sure why.light travels slowest through diamond.and the universe expansion is traveling faster than light.

rookie54
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@divegeester said

Thread 199353
clicking this link from my photon based operating browser has created a light loop from which i cannot exit, but, i am allowed to dispute its very existence by using the same photons not yet created by the passing of the energy in reverse

it tickles

Ponderable
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@divegeester said
Yes it does.

The sun physically and actually rises above the earth’s horizon approximately 8 minutes before we see it which is the amount of time the light takes to reach us.
So at least in Germany "Sonnenufgang" is defined, when you observe the sun coming over the horizon, that the incoming light is actually a bit dated at that time is not of relevance.
Since the sun is emitting the light in all directions (quai) homogenously. The light is alredy 8 minutes travelling, but is arrives directly at the sunrise time.

Drewnogal
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@great-big-stees said
“Light” beer is horrible.
Nice to see there is an alchemic among us.

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@drewnogal said
Nice to see there is an alchemic among us.
and a budding alchoholic..... well in my past maybe.

Very Rusty
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How fast am I?

Well I can turn the light off and be in bed before it goes dark. 🙂 😛

-VR

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@very-rusty said
How fast am I?

Well I can turn the light off and be in bed before it goes dark. 🙂 😛

-VR
did you know light is lighter than dark.

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i modified my eureka vacuum cleaner to produce more power
it sucks so well that it consumed all the photons in the shack


dammit it's dark in here





*this post was created in the future by the imagination of my past self*

divegeester
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@david-burton said
i studied physics to a level always shown a keen interest in science,a big fan of carl sagan and hiesenberg, he had an effect upon me.
I’m a Sagan fan too! I have Cosmos on VHS somewhere in the loft.

You know, despite all the forum stuff, I think we’d get on pretty well in real life.

divegeester
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@suzianne said
The sun's motion does not affect our "sunrise".

The rotation of the earth does.
I didn’t say it did.

You’re missing the point. Which is; the Sun physically and actually rises above the horizon 8 minutes before we see it.

It’s cool.

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