It needs to be 2. Otherwise all the people will materialize inside eachother. In fact, everyone will be deposited onto the 2-dimensional pane of the blue portal itself, like an infinitely thing coat of paint, absolutely smearing them.
Think about it. As your fingertips enter the orange portal, they materialize at the entrance of the blue portal. Then your wrist enters the orange portal, where does it materialize at the blue portal?
If your fingers shift to make room, then that has imparted momentum and it’s option B.
If you continue to materialize on the other side of the portal like a mirror image, then for all intents and purposes the blue portal is also moving at the same speed as the orange portal, even if orange ring appears still.
If your fingertips don’t have momentum and your wrist materializes at the portal, then your wrist is occupying the same space as your fingertips. Congratulations, you’re now a paste.
For whatever reason I feel more willing to break conservation of momentum than I am to
This has the interesting implication that the relative speed between the portals is “added” to whatever goes through it.
Example: the blue portal is on a train running with the same speed in opposite direction. The people-bundle would instantaneously be accelerated to twice the speed of each of the trains. (This becomes a real headscratcher if you were able to put the portals in a particle accelerator)
It’s two dimensional in the sense that the surface of the portal is a plane, through which things pass.
So as things pass through the portal, conservation of momentum is either preserved or it isn’t, with respect to a constant observer. What happens as they partly enter the portal in both of these situations?
If momentum is preserved, and they have zero momentum going in to the portal, then they are motionless as they exit the portal. There is nothing to cause your hand to move out of the way for your arm. Scaled down to the atomic level, you become a paste.
So you say that your hand moves out of the way because it is connected to your arm. The fact that it moves out of the way fast enough to make room for your arm means that it has velocity, and therefore momentum. The momentum means that it (and you) would get launched into the air, but conservation of momentum was violated.
There is no scenario where you exit the portal motionless but intact.
Zero fast. There is no energy being transferred to the people, they would plop out and push into each other as they are forced through.
If you blocked the stationary portal then the portal moving would essentially just be a wall, no one would go though.
This whole relative thing makes no sense, energy isn’t just created because it’s observed by someone else, the door is moving not the people so them sitting there won’t suddenly be catapulted going through a moving portal, where is that energy created?
No, the dude is right - if they’re moving “zero fast” upon exiting the portal, then that means they’re either a 2 dimensional paste on the surface of the portal (dead), or they were entirely transported upon contact (cannot partially enter a portal) which is explicitly not how the portals in the game work.
This is because: if your hand goes into the portal and appears on the other side, it must move out of the way to make room for your arm. Because it is moving, it has velocity, which means it has momentum. If it doesn’t move out of the way, then you’re now 2 dimensional, and dead.
Also, in portal, energy is absolutely created. Every time you portal to a higher place, you gain potential energy that you didn’t have before, without losing any of the other kinds of energy that you had.
I really think you didn’t read my full comment, because I explained the problem with this exact scenario.
First, in your hoolahoop example both sides of the hoop are moving with the same velocity (this is essentially option 3 I described). But the entire thought experiment is “what if the two sides didn’t move with the same velocity”
If you’ve played the game, you know that you don’t instantly teleport when you touch the portal, you can be half in the portal. This means that when something enters the portal, it is deposited on the surface of the other portal. So as your arm enters the portal, your hand needs to move out of the way to make space for your arm.
If your hand doesn’t move out of the way to make room for your arm (it is still because it has the same momentum that it had when it entered) then your arm will materialize in the same space as your hand. Now scale that down to the atomic level, if the atoms of your fingertips don’t move for the next atoms, everything will be deposited in a 1 atom thick film.
If your hand does move out of the way fast enough to make room for your arm, then it is moving at the same speed that the train was moving. Your momentum from that speed would fling you into the air.
In no scenario do you just pop out intact but motionless.
I just don’t agree that’s how it would work. You can’t gain momentum simply by passing through a portal. The portal cannot create momentum. The object passing through has no kinetic energy going in, it can’t have kinetic energy coming out. It would exit the portal at the velocity of the first portal, as the entry portal passes over the object, and then the object would drop to the ground.
There is no way that it works without breaking even more laws of physics than the game. So you’re right, you can’t gain momentum. Nor can you be deposited intact on the other side of the portal.
But of the options, the one you described seems the least likely. I keep telling you exactly how it wouldn’t work, and rather than addressing the concerns you just say “no”.
We can agree that you can partially enter a portal, so you can put your hand in and only your hand comes through the other side. So now tell me: how does your hand move out of the way for your arm to come through, without moving? Because if it moves, then it has gained momentum, which you’ve explicitly said doesn’t happen.
I’ll believe AI can replace engineers when I see NVIDIA firing them. But like the graphic says, the manager’s job seems a lot easier to replace instead.
This episode of Dexter’s Lab first aired more than 20 years before the first episode of Primal (Feb 1998 vs Oct 2019). A bit of visual discrepancy is to be expected
Flew under my radar. Gotta watch that. Which reminds me I still need to finish off Samurai Jack. I think I stopped somewhere in the last season of the old series and I want to watch that before I get to the new episodes, which I hear are excellent.
Of course, I’ll probably want to finish off the few lingering pieces of new trek. And I gotta watch all of that before second season of Arcane comes out, since that will take priority as soon as it comes out. And…
Not really a problem with UDP itself, but with some very old protocols like DNS that rely on UDP but can’t be changed because of compatibility. If you’re writing a new service that uses UDP, there’s nothing stopping you from designing it so that it doesn’t provide an opportunity for bandwidth amplification.
Random computer quirks always fascinate me. The strangest one I had involved a computer that shouldn’t have existed.
One time in the early aughts I had a patchwork computer that I put together from the junk pile of a local computer store that a buddy of mine ran.
It was barely holding together in a rusty frame, with zip ties and wood glue.
Its modem was temperamental as hell. It would only stay online so long as it was pinging a website via command prompt. It was only some websites, too. Like I could ping Geocities, but not livejournel.
I remember many weekends doing Mephisto runs in Diablo II, praying that my command prompt doesn’t bug out anytime I’d get anything worthwhile.
I have a personal server, mostly acting as a NAS but with some web hosting as well. For whatever reason, it randomly freezes until you manually power cycle it, it happens really often, like every 20 minutes.
Turns out it’s due to some weird interaction between debian and older ryzen CPUs, if the CPU isn’t busy it just dies. Solution? A Minecraft server, with no one on it, it keeps the CPU just busy enough to keep it alive. I’ve had it running for months at a time with no issues.
Go into grub and set intel_idle.max_cstate=1 if you want it to be elegant. Had the same problem. AMD didn’t implement proper sleep states. There’s an open PR ranting about interconnect issues somewhere if I can find it.
You might’ve just opened my eyes about an issue I’ve been having with my ryzen server! I’ve been using it to host a discord bot, and every now and then it has to be manually restarted (which is a hassle for me since it’s over 40 miles away from my house) so I’ll definitely be trying this, or the Minecraft server solution lol
Based on the highlighting they did, I believe their theory is that “livejournel” didn’t work because it should have been “livejournal” with an “a” and you presumably made the same typo all the time.
Im tipping my hat to the creator for predicting the near future if a beloved character who is now open for public use. They saw the opportunity and grabbed it firmly
A screwdriver - not a drill or impact driver. For those I always use the correct bit. But the $1 Phillips driver in my desk isn’t gonna over-torque a posidrive.
Temper proof torx makes me lol, because almost every bit set I own includes them.
If you break it off you will most likely leave some behind, which will significantly reduce the mating area because you cannot insert the bit fully and may lead to stripping the screw.
Fair. It all depends on where it breaks off and how tight the screw is. In electronics the screws arent in very tight, and breaking it off often breaks it off all the way down to the base.
Whatever happens, tamper proof is a huge fail and a good joke
the only slightly justifiable use of slotted is something like the face plate on a light switch or power outlet, where it doesn’t have to be particularly tight and it’s nice you can remove it in a pinch with a fingernail or dime.
… but really if someone came and replaced all of mine with torx I can’t say id complain, so its not like they’re good in that use case… just less awful
If it isn’t a real story, there are plenty of real stories like it. There are just a disgusting number of people who are reckless drivers.
Almost no one in the town I live in uses their turn signals. It’s infuriating. I can’t tell you the number of times I’ve almost rear-ended someone who suddenly slam on their breaks in the middle of an intersection and turn off. I also live in a subdivision with no sidewalks and a speed limit of 25 mph. People are regularly walking their dogs and kids are everywhere. I see people flying down the curvy subdivision roads doing at least 50.
I’m amazed I haven’t heard about anyone getting killed.
Exactly. It both pisses me off and terrifies me every single time. And it happens at least once almost every time I drive. I honestly don’t understand it. I’ve never been in a place where so many people refuse to use turn signals.
Many people need a near death experience to teach them respect for the mass and energy involved in driving.
I had a bad crash over a decade ago where somebody ran into me at low-ish speeds. It was head on though, and it was more than enough for me to remember for life. I wasn’t a bad driver or anything before that though.
the best way to teach people how mass and inertia works in a car, is to put them in the passenger seat, get up to highway speeds, and then send the brake pedal to the floor.
A lot of it is also people who know they shouldn’t drive but have no other choice. In the vast, vast, vast majority of the US, if you don’t have a car you can’t even go to the store or get a job.
This is my partner. Has epilepsy, but no family, money, or insurance.
Ironically since they can only get part time work with flexible hours, they’re stuck in customer service, meaning when their hours get cut they have to doordash to make rent.
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