this post was submitted on 06 Aug 2024
910 points (98.3% liked)

Science Memes

10988 readers
1997 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 12 points 3 months ago (1 children)
[–] [email protected] 7 points 3 months ago

PvP - player vs ping

[–] [email protected] 4 points 3 months ago (1 children)

We should put whatever latency compensation NASA uses in Vidya James.

[–] [email protected] 6 points 3 months ago

They don't use anything for their latency. I've looked into the space network they have, what protocols they use and what they do about the massive delays.... Just a little bit, I don't know it super well or anything, but from my understanding, the "network" they use is more about assurance than delivery speed.

The publicly available version of what they use is called delay tolerant networking, which essentially uses a mesh of nodes that may, or may not be able to communicate to other nodes at any given time. As messages are sent, they are relayed from node to node as connectivity allows until they get to a base station for final delivery. It's a bit like the mail system, but instead of large centralized sorting facilities, you only have local post offices. The message is sent from one office to another until it leapfrogs it's way to the destination. It can wait at one post office indefinitely until a path opens up to the next one.

In the case of delay tolerant networking, it basically sends it along to the next station in the mesh, and that station will confirm the delivery of the information, which is when the sender can remove the message from its buffer.

Ideally, the nodes should have some type of non-volatile memory (like nvram) to store pending deliveries, so nodes don't waste power trying to keep the information in their volatile memory (RAM).

Terrestrialy, we use DTN for tracking stuff like the movement of animals in large and unserviceable areas (where mobile networks like LTE, don't exist), such as deserts and undeveloped forests. As the trackers on the animals come within range of another tracked animal, updates occur, and when either gets near enough to a base station to upload the information, then the updates are sent out to the records systems.

Don't ask me how the logic works to figure out when to push data one way or another. I haven't gotten that deep into the protocol yet.

Anyways, for NASA, the information is sent to satellites, which relays to the rover eventually. In NASA's case, they can directly transmit, from Earth, using microwave arrays, to the satellites in orbit around Mars if we want.

I'm not sure on the specifics of how they have their version of DTN setup, so I'm only speculating at best.

They don't mitigate latency, they simply account for it, and work with that as part of the problem.

[–] [email protected] 37 points 3 months ago (1 children)

Do they have to race 12 year olds high on sugar and Adderall?

[–] [email protected] 3 points 3 months ago (1 children)

Come to think of it, who are the real aliens?

[–] [email protected] -1 points 3 months ago

The Brazilians in my US multiplayer lobby.

[–] [email protected] 41 points 3 months ago

It's not like they "play" competitive real time over there. It's more turn based single player

[–] [email protected] 14 points 3 months ago (1 children)

You made up a bullshit punchline just to use this image didn't you

[–] [email protected] 1 points 3 months ago

Haven't we all?

[–] [email protected] 10 points 3 months ago

If I get under 300ms ping it's a good day.

[–] [email protected] 37 points 3 months ago (2 children)

I'd be a lot more impressed in people were shooting at NASA's robots.

[–] [email protected] 7 points 3 months ago (2 children)

I'm obsessed with the idea of a slow-paced FPS game now. Imagine logging in once or twice a day, picking a shot and seeing if whoever it is is still there the next day.

[–] [email protected] 2 points 3 months ago

You may want to check out Superhot. It's not nearly that slow, but the whole have runs in extreme slow motion.

[–] [email protected] 3 points 3 months ago (1 children)

Once I had a board game that was a lot like this. You controlled robots on a board, and had to plan out like 5 operations (turn/step/...) each round. Chaos ensues when you have 4 people hindering (or trying to) each other.

[–] [email protected] 2 points 3 months ago (2 children)
[–] [email protected] 1 points 3 months ago

Richard Garfield's RoboRally!

[–] [email protected] 1 points 3 months ago

With 30 ping

[–] [email protected] 1 points 3 months ago

Please don't compare a state of the art computer with some lousy toy they fired into outer space

[–] [email protected] 29 points 3 months ago (2 children)

In my day, we wish we had 100 ping. Kids these days think they're hot shit.

[–] [email protected] 1 points 3 months ago

Yeah wtf, 100ms is great.

300ms is the average reaction time in humans. Less than 100ms reaction time would be insane and I'm pretty sure it's something no one has actually achieved.

[–] [email protected] 1 points 3 months ago

For me these days my ping still jumps between 300 and 1k. 80ms is a good day

[–] [email protected] 6 points 3 months ago

Don't let your ping hold you back. I bought one of the COD games a few years ago and my PC would not run it no matter what I did with the settings (I think my processor was the problem). Usually it crashed before I even got into a game but I was actually able to join 2 of them and it was like playing a PowerPoint presentation of COD. The one game I actually able to finish I was still in the middle of the pack for k/d....

[–] [email protected] 12 points 3 months ago (1 children)

New Zealand has entered the chat

[–] [email protected] 3 points 3 months ago

Lemmy.nz has had some serious problems with federation with World, and a few other instances, because the way federation works, or worked, is an item would be sent, the receiving server would acknowledge receipt, and the next thing would be sent.

We ended up four days behind at one point.

[–] [email protected] 32 points 3 months ago

Well NASA is essentially botting. It's not like they need to sit there and give it every input. They tell it what to do and it follows a program. I could bot with that much ping if my bit is running locally on the game's servers. Basically: NASA is full of cheaters.

[–] [email protected] 13 points 3 months ago

If my match was against rocks I'd have no problem with ping that high.

load more comments
view more: next ›