5 ms·
The use of "additionally" is weird here. A full roundtrip is 45 hours. It doesn't take 22.5 + 45 hours to receive a response. 45 = 22.5 + 22.5.
by mholt 3y ago
The use of "additionally" is weird here. A full roundtrip is 45 hours. It doesn't take 22.5 + 45 hours to receive a response. 45 = 22.5 + 22.5.
- 83457 3y agoShould it have been additively?
- gwill 3y ago'Therefore' would have worked
- bagels 3y agoIt's an additional fact.
- orphea 3y agoThis is why this use of the word, while correct, is weird.
- mortallywounded 3y agoIs it though? If it takes 22.5 hours to get there, the response is another 22.5 hours. It's not a new fact, it's a universal limitation.
- ClassyJacket 3y agoThen they should start every sentence with "additional"!
- radicalbyte 3y agoThere was me thinking that the signal processing took 20 hrs but it turns out that whoever wrote that article has little grasp over physics.
- whoopdedo 3y agoThe NASA press release is written: "In addition, commands from mission controllers on Earth take 22.5 hours to reach Voyager 1, ... That means the engineering team has to wait 45 hours to get a response" The CNN writing looks uncannily similar but without the same meaning. I'm not saying it's machine generated, but I won't say it isn't.
- mattkrause 3y agoAre we all sure the times aren’t asymmetric? The transmitter on Earth can be massive with an enormous power budget. Sending from Voyager might be much more constrained: less compute to compress the payload, less power to send it. The speed of light is obviously the same either way but it’s not obvious to me that the speed of a byte (error corrected, etc) must be.
- Arnavion 3y ago>The speed of light is obviously the same either way It's not obvious that it is :) We don't have any way to prove that it is the same, because every experiment to measure the speed of light going from A to B requires some light to go from B to A which cancels out any difference. We just assume that it is the same because we don't have any reason to believe it's not. Veritasium video on this topic: https://www.youtube.com/watch?v=pTn6Ewhb27k https://www.youtube.com/watch?v=pTn6Ewhb27k
- blahgeek 3y agoMaybe it's TCP handshake :)
- bee_rider 3y agoI wonder if it was messed with in editing or something, like maybe they have a style guide rule against long sentences. Anything to merge the ideas together would make it clear that it is just one phenomenon, for example. > Voyager 1 is so far away that it takes 22.5 hours for commands sent from Earth to reach the spacecraft, and so the team must wait 45 hours to receive a response.