portifornia

@portifornia@piefed.social

• ⁨Comment⁩ on ⁨Which is it Lemmy?⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  Hmm, maybe? But two things to (re) consider:

  Saying “the cube imparts momentum onto itself” sounds like it would violate the law of conservation of energy. The ‘energy can’t be created or destroyed’ theory, so where did it actually come from? Did the cube suck force going at one vector (the portal) and convert it into the opposite vector? That feels like it violates inertia. And since momentum is mass*velocity, that means the mass of the portal would play into the math changing the cube’s own momentum. And I’d honestly assume the portal’s mass is zero, which still maintains it wouldn’t impart any energy onto the cube, right?

  Secondly, regarding inertia from another standpoint, I have a thought experiment: let’s say the portal is coming at the cube blazingly fast, then immediately stops halfway through enveloping the cube, so it’s just chilling 50/50 on each side. By your statement of “it pushes the first part of the cube...” That would mean one half would have momentum at the same time the other half, not yet through the horizon, would still have none. Maybe so much so that (1) the cube would be pulled the rest of the way through even through the portal had stopped because half the atoms of the cube suddenly had momentum for some reason, or (2) the cube would rip in half (brittle cube I guess, but let’s ignore the material considerations for simpliciry) because half the cube now suddenly has momentum while the other half still has none.

  So I think I understand your perspective, but I can’t yet get around what seems to be a few lingering problems. All the same, I’m enjoying the discussion, thanks net-neighbor!

• ⁨Comment⁩ on ⁨Which is it Lemmy?⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  Or, this, but mind blown –> The exit portal would be the thing that moves backwards to maintain the zero momentum of the cube 😅

• ⁨Comment⁩ on ⁨Which is it Lemmy?⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  My take:

  The cube’s mass is x (eg one gram) and its velocity is zero, therefore its momentum (m*v) is zero. Objects in motion tend to stay in motion, while objects at rest (e.g. momentum of zero), tend to stay at rest.

  The thing which is moving, is the portal. At best, the event horizon of it reaches the leading-end then the trailing-end of the cube at the speed the portal is moving over the depth of the cube. If the portal moves faster, that distance is covered faster, and the full cube is entirely on the other end of the other portal faster [than a slower moving portal].

  Since going through the portal is a frictionless and forceless action, the speed at which the portal fully envelops the cube would neither add nor remove momentum upon it. And if the cube did have its own momentum it would be maintained, but since it does not, the cube would not move until another force, like gravity, acted upon it.

  So, A.

• ⁨Comment⁩ on ⁨Hey looky! I'm on a list a just learned about three minutes ago!⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:

  I walk among giants!

  Thanks @Sprinks, I had been following this for a few days but couldn’t find the list until you shared it here. I was certain I wasn’t cool enough to have angered this twat edgelord, but here I am in bright and agnsty glory!

  Portifornia on blocklist

• ⁨Comment⁩ on ⁨When it comes to total water use, AI data centers are a drop in the bucket⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  But it’s not a drop in the bucket… They try to claim it is, by comparing their usage from 2-4 years ago, which has exponentially increased over the last 18 months, to national or global usage, but they completely gloss over;

  A single Meta data center in Newton County, Georgia, for instance, now uses about 10 percent of the entire county’s water supply

  This is a shit article, from what’s clear to be a shit author Kyle Orland, Ars’ Senior Gaming Editor.

• ⁨Comment⁩ on ⁨Men Are Buying Hacking Tools to Use Against Their Wives and Friends⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  I agree.

  • Men don’t do this, duchbags do.
  • People don’t do this, predators do.
  • Humans don’t do this, blights on the species do.
• ⁨Comment⁩ on ⁨⁩ ⁨⁨5⁩ ⁨months⁩ ago⁩:

  Agreed. It’s so simple and beautiful. - The once a year extra-day is an international Eat The Rich holiday. Probably tied to the winter solstice. - And every fourth year we all get a bonus-extra Leap Purge holiday.

  The Gregorian calendar has nothing on this!