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/sci/ - Science & Math

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7562193 No.7562193 [Reply] [Original]

hey, /sci/. i've been pondering something. for the sake of this discussion, let's just discard the law "matter cannot be created or destroyed". if a mass of matter just appeared somewhere, be it an orange, a planet, a star, a black hole, or what have you, would the entire gravitational feild around that object instantly come into being? or would it expand outwards from the mass of matter at a predetermined rate?

>> No.7562223
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7562223

information can't travel faster than the speed of light.

>> No.7562248

>>7562223
then would there be a set equation at which the force of gravity expands to effect the mass around it?

>> No.7562273

>>7562248
299,792,458 m/s

>> No.7562275

>>7562193
>let's ignore everything we know to be true
>what would happen?

Fuck off

>> No.7562277

>>7562193
Right answer: >>7562275
The answer you wanted: >>7562223
What else is there to say?

>> No.7562282

You don't have to do something impossible (create matter from nothing) to test that. Just moving some mass back and forth will create a "ripple" that expands at the speed of light.

>> No.7562352

>>7562248
I'm pretty sure that astronomers model this shit now when looking at planetary movement. There's bound to be some lag between the shift of a mass and the response time of whatever it is imposing its gravity upon.

>> No.7562369

The effect would propagate outward at the speed of light.
http://www.nobelprize.org/nobel_prizes/physics/laureates/1993/

>> No.7562589

>>7562193
energy is constant, not matter. Do you even E=mc^2?

>> No.7562707

>>7562193
>the law "matter cannot be created or destroyed"
There is no such "law" in the 21st century, Herr Doktor Becher.