6 ms·
The latency must be huge though.
by erid 13y ago
The latency must be huge though.
- paulgerr 13y ago2.6 second round trip for light, so pretty huge ping times.
- nraynaud 13y agoThat's why I always found moon people to be lame at quake!
- Aardwolf 13y agoOne day technology will really have to do something about lightspeed to allow interplanetary quake!
- deletes 13y agoSolution for the lag will be a special category "bot play". The bot will not be programed but will behave like a black box, computer ai will record you every time you play in a local game and will slowly build the bot around. Then the bots will compete on a server, maybe separated by categories determined by previous recording time.
- rel 13y agoI worked at NASA (AMES) on a project to put small mobile robots on the moon. Our biggest goal was to create a tele-operated mode where from earth we could actively roam around the moon. The hardest part was that factoring in a 4 second delay from our commands to the network stacks to the rover on the moon, and then that video from the moon back to our computers and then creating good judgement. A 4 second delay seems insignificant but is in fact detrimental to intuitive controlling.
- gprasanth 13y agoUnless, our technology advances to always do stuff a couple of seconds in advance by knowing our intents.
- toomuchtodo 13y agoOr we figure out how to use quantum entanglement or gravity as information transfer mechanisms.
- drakeandrews 13y agoUnless we discover gravity is bound to the speed of light too.
- stonemetal 13y agohttp://www.newscientist.com/article/dn3232-first-speed-of-gravity-measurement-revealed.html#.UmgUV_mkp8A http://www.newscientist.com/article/dn3232-first-speed-of-gr... It is.
- danbruc 13y agoGravity propagates at the speed of light, too.
- swamp40 13y agoI think that's a debatable topic. Some say it is just a pure geometric effect of curved space (and thus instantaneous), not a force of nature that propagates.
- rodh 13y agoI'd imagine TCP, as a protocol starts to fall over with moon-to-earth latencies. Or would it? Perhaps simply increasing the retransmission timer would give us interplanetary internet. I wonder.
- arnarbi 13y ago> interplanetary internet Winternet!
- drcross 13y agohttp://en.wikipedia.org/wiki/Interplanetary_Internet http://en.wikipedia.org/wiki/Interplanetary_Internet
- noselasd 13y agoCode from NASA here, http://sourceforge.net/projects/ion-dtn/ http://sourceforge.net/projects/ion-dtn/
- TylerE 13y agoMoon to earth should be workable enough...average speed of light roundtrip will be about 2400ms.
- throwaway9101 13y agoBandwidth delay product tends to limit throughput at such high latencies, though.
- stonemetal 13y agoTCP uses RTT time to try to guess network congestion. Having worked on software that almost always had satellite hops, it sucks on long links. Primarily what you notice is that you get limited bandwidth because the TCP stack is throttling to prevent congestion. Not sure what RTT is to the moon and back but you would want to use something like TCP Hybla that does network congestion control a different way. http://en.wikipedia.org/wiki/TCP_congestion-avoidance_algorithm#TCP_Hybla http://en.wikipedia.org/wiki/TCP_congestion-avoidance_algori...
- agashka 13y agowouldn't it be less then RF? Radio Frequencies travel at the speed of sound, while lasers would be light-speed, from my understanding. I'd really love some insights on this! EDIT: I still need to learn a lot on signals!
- robin_reala 13y agoRadio waves are EM waves, same as light. They all travel at c.
- zargon 13y agoRadio is not sound, it is an electromagnetic wave that travels at the speed of light.
- robodale 13y agooh boy.
- 16s 13y agoSpeed of light, not sound.
- deleted 13y ago[deleted]
- rzimmerman 13y agoStill not as bad as Voyager, where the ping time is an entire weekend.
- 7952 13y agoThe latency is sufficient that you could actually use space as a data storage medium. At 622Mbps there is 1,596Mb in transit at any given time.