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/sci/ - Science & Math


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6683476 No.6683476 [Reply] [Original]

Is inertia the result of the whole universe pulling on an object?
If not, what is it then?

>> No.6683488

Its about momentum....

>> No.6683489

>>6683488
>momentum
what about it?

>> No.6683491

>>6683476
no, it's the result of boost invariance.

>> No.6683610

inertia = mass

>> No.6683625

>>6683491
Please, continue anon.

>> No.6683637

>>6683625

Well, you see, there is only a little attribution towards the ance of the vari while travelling at the speed of velocity. As Einstein said, consensus is made up in the particles of the nucleaeaeiieaei, while the rest of it is contained at the exclusion of nugular scientularistics.

>> No.6683710

>>6683625

the other moron that replied to this post is not me.

Noether's theorem ties every continuous symmetry of a system with a conserved charge. If your theory is invariance under boosts (changes of frames of ref going at different speeds) then the conservation of the corresponding charge is just newton's first law. This works in newtonian AND relativistic mechanics

>> No.6685457

>>6683476
Where inertia comes from is still unknown. Some people speculate what you just said, that it is some kind of interaction, perhaps gravitational, with the rest of the universe.

If we could express inertia as an interaction between masses, we would no longer need the concept of an inertial frame of reference. It would truly be all relative.

Experiments have been proposed, but they are too hard to accomplish. We would need to move around very large masses to measure very small effects.

>> No.6685489
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6685489

>>6685457
What? That isn't true at all! Your knowledge of the subject is outdated by centuries!

>>6683476
Inertia (like a lot of things) is just a consequence of a conversation law. A conservation law is a consequence of a "symmetry". The symmetry is thought to be the fundamental aspect.

For instance, the linear symmetry of space with respect to motion gives us the conservation of momenta. And depending on particular systems the conservation of momenta will give what we observe as the "inertia" of certain bodies within that system.

So fundamentally inertia of objects in a space , arise from the properties of that space (its inherit symmetries)

>> No.6685495 [DELETED] 
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6685495

>>6685457

>> No.6685594

>>6685489
this

>> No.6686210
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6686210

Identification of a descriptive concept ('law') with a physical cause: The New Magical World View.