Dr. Blitz
Region: US
Thursday 11 June 2026 15:52:45 GMT
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Jo :
where is f = m a
2026-06-11 23:09:50
94
PaylorSenpai :
it continues like this btw: jerk, snap, crackle, pop
2026-06-16 16:04:44
20
suspicious_liberal :
why would the universe universe tend towards this “simplicity” and “elegance” though? And aren’t there cases where the most elegant theory isnt the correct one?
2026-06-12 01:00:04
3
morganlowder03 :
Force is the change of momentum
2026-06-12 02:04:12
6
janyewest :
Geodesics make this interesting. The real mystery may be why nature prefers 2nd order dynamics at all!
2026-06-12 00:19:42
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pop culture vulture :
You explain things well. I’m dumb as shit and I was able to follow.
2026-06-11 20:19:23
46
This fact is incorrect :
Everyone asks "why is F=ma" but no one asks "how is F=ma"
2026-07-01 18:53:23
4
Æther :
In spacetime diagrams, motion is parabolic in relativity. I don’t think inertia can be minimal. It would break conservation laws in relativity. If an object undergoes an acceleration, then the amount spacetime dilation would change. It would mean that the universe gets a free lunch of spacetime dilation. It would seem like inertia has to be payment for that lunch. It may be that it takes some energy to change the amount of spacetime dilation. Otherwise, the contraction and expansion of a universal frame of reference would be the ultimate free lunch.
2026-06-11 18:36:53
1
user3371413228152 :
I just thought everyone else should have to see the frame my phone decided to buffer on for an extended period of time.
2026-06-18 03:06:35
2
I am :
wait I thought acceleration was the fate of change in a velocity
2026-06-14 16:15:29
0
goldie :
I'll never forget the sage advice of the late avuncular figure who raised me: with great power comes great force times velocity
2026-06-14 09:04:36
3
MURCS :
Wait! An object at rest is not an object that doesn't move. An object at rest is an object which moves in all directions simultaneously. It appears to be still because opposite motions cancel out each other.
2026-06-24 17:30:03
0
Samhain :
Can an object be truly “at rest” in this universe?
2026-06-14 01:27:29
0
Kidus :
This is super interesting. Any suggestions for someone who wants to read more about why the higher derivative models are unstable?
2026-06-11 19:11:59
5
maceiohobo :
I'm new here. What's your opinion on the shape of the Earth.
2026-06-12 17:05:56
0
PlotTwistDad :
Why is there a 1/2 in the kinetic energy (E = (1/2)mv^2 equation — but not in E=mc^2?
2026-06-12 14:47:00
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popcorn9988 :
Ok but why is inertial mass the same as gravitational mass?
2026-06-13 21:25:17
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Latchezar Tomov :
F is equal to mma
2026-06-12 20:56:44
0
Verso :
Super helpful, I'm doing mechanics as part of my Maths course in school and we don't have enough time to ask these questions
2026-06-11 16:00:00
6
amberbye :
Any chance you were on a Greek Isles cruise last week? I think I saw you or your doppleganger at dining main 3 breakfast! You were wearing a mask :)
2026-06-14 22:18:05
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Dustin :
But why is mathematics so unreasonably effective at describing the natural world?
2026-06-14 01:33:52
0
AugustusFinknottle 🦎 :
dumb question: so this idea of preserving reversibility - is that related to the idea of symmetry giving rise to conservation laws?
2026-06-12 17:22:05
0
PinkyTrent :
Was that one of the reasons why the Klein-Gordon equation wasn’t that useful (at least compared to Diracs equations) or was it due to something else. (At least when you were talking about ostrogradsky instability)
2026-06-11 18:37:53
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Chaotic Weevil :
maybe a dumb question but could there be universes where the physics you describe exist but they're just too unstable for life to exist so the odds of us existing in an f=ma universe is just vastly more probable? also what is "information?"
2026-06-12 22:25:46
1
FarkleGriffen :
F=ma is a definition. ΣF=ma is the law.
2026-06-12 16:41:36
0
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