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Post AYSSdQZ2zySp90Q6L2 by [email protected] |
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More posts by [email protected] |
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Post #AYRxQLVZO9dX7T4kiG by [email protected] |
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I have so many questions about what just happened with Voyager 2. But let'… |
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Post #AYRyzIVkciPduiOH20 by [email protected] |
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@johncarlosbaez I can’t find the reference any more, but I read in a news sto… |
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Post #AYS0WXHOpqa3EC5gyu by [email protected] |
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@gregeganSF - Very interesting! I find it annoying, though not shocking, that a… |
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Post #AYS1Cqk8rP71kuiBRg by [email protected] |
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@maxpool - thanks! Any idea why they moved the antenna 2° instead of somethi… |
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Post #AYS4hr384UQpXr4JvM by [email protected] |
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Calling @Chartodon ...@johncarlosbaez |
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Post #AYS77o3G2XeJgVdCN6 by [email protected] |
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@johncarlosbaez Security Now covers some of this in episode 933https://www.grc.… |
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Post #AYS77o8Zilu1x07Rey by [email protected] |
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@BigMalCampbell - thanks! But I really want to know is how someone screwed up … |
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Post #AYS8v4s8OF15zqUEM4 by [email protected] |
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@johncarlosbaez Amazingly, the radio power received on earth from the Voyager s… |
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Post #AYS8v4xo39YOHR8lCC by [email protected] |
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@FMarquardtGroup - amazing! |
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Post #AYS9zBXHektNmBFxRI by [email protected] |
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@johncarlosbaez @gregeganSF this stuff about the bad commands sent to the Voyag… |
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Post #AYSFfZT7Z3GHw5L8DI by [email protected] |
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@johncarlosbaez @FMarquardtGroup POWER RECEIVED-160 dBm(1.0 x 10-22 kW). Sourc… |
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Post #AYSGEl44RVjK2GOw6a by [email protected] |
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@ngmi - that's what they were expecting to have to do! But they gave "… |
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Post #AYSGKsLYHVuOMEUkTI by [email protected] |
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@johncarlosbaez "In December 1977, it entered the asteroid belt."... … |
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Post #AYSGKsQVz3sWbcoiCu by [email protected] |
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@wrog - I hate all SF shows that depict asteroid belts as thick with mountain-s… |
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Post #AYSGbiYlvCoGvYi31M by [email protected] |
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@johncarlosbaez My guess:The receive side of the Voyager's radio has a wide… |
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Post #AYSGbid1fODF8khReS by [email protected] |
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@tj - In a comment on my post someone said Voyager's antenna can detect sig… |
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Post #AYSGfj5dtOSbjJznge by [email protected] |
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@johncarlosbaez apparently the antenna was "only" 2 degrees off from … |
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Post #AYSGfjAxZciJzoU2yW by [email protected] |
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@tedric - thanks, I'll check out that PDF.It seems Voyager 2 was designed b… |
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Post #AYSH3QrzHozCAeueUS by [email protected] |
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@johncarlosbaez So I take it Voyager 1 is furthest from earth. After reading th… |
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Post #AYSH3Qwb0gfkOx4Kfo by [email protected] |
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@mxtthxw - Voyager 1 is the farthest from Earth, and moving faster too!But for … |
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Post #AYSHDlhAiECnejmZ7o by [email protected] |
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@johncarlosbaez Well there you go!I'd also gently advise against calling th… |
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Post #AYSHDllmR5tLt1wFJA by [email protected] |
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@tj - 'twas a joke. I bet everyone responsible *felt* like an idiot! Bu… |
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Post #AYSHnLGATbN65o79Iu by [email protected] |
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@johncarlosbaezHumans have accomplished astounding things. |
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Post #AYSKdjyc1au1iX13sO by [email protected] |
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@Linux_Is_Best @johncarlosbaez I think the time required to reach Voyager is to… |
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Post #AYSKdk3DkSaZwpAk3k by [email protected] |
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@trumpresistance @Linux_Is_Best - yes, Voyager 2 is about 16 light-hours away a… |
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Post #AYSKrmRPessZPnBLYO by [email protected] |
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@MarvinTheMartian @Linux_Is_Best - according to this website, which is constant… |
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Post #AYSSdQZ2zySp90Q6L2 by [email protected] |
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@johncarlosbaez Just let it rest for a bit! It’s been working for 46 years. |
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Post #AYSSdQdIk9rnMCPUy8 by [email protected] |
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@seb321 - I told my boss that but... no. |
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Post #AYSSgdOHlb67nFuogy by [email protected] |
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@johncarlosbaez how strong is the password to control access to Voyager 2? |
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Post #AYSSgdStUSmg1Y4UsK by [email protected] |
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@johnmastodon - I'm not saying. |
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Post #AYSSteM3UfoqY24vku by [email protected] |
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@johncarlosbaez wouldn't every command be simulated and tested to death fir… |
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Post #AYSSteQJErDolE4KO0 by [email protected] |
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@dyn - yes, you'd think they would simulate and test these command before t… |
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Post #AYSTGMwwN5vtEAAGjA by [email protected] |
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@johncarlosbaez in '81 or '82 some people from JPL who worked on the Vo… |
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Post #AYSTGN1Y5xcRSSJwuW by [email protected] |
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@ochaos - some of the original team continue to work on the Voyager program!htt… |
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Post #AYSTMrk6nS7kT4GDB2 by [email protected] |
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@johncarlosbaez You'd think they'd be thoroughly testing every software… |
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Post #AYSTVMRuVxhY1EncTg by [email protected] |
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@doomscroller @johncarlosbaez It still amazes me quite how much the speed of li… |
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Post #AYSTVMWAG96WEQn16m by [email protected] |
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@autumn - Very good point! If we ever got a solar-system-wide civilization goi… |
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Post #AYSTcuhhYSPUHjmq48 by [email protected] |
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@BartoszMilewski - yeah, really! I hope the truth comes out someday, since tha… |
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Post #AYSTidFzKqB1uaYDei by [email protected] |
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@johncarlosbaez Try turning your head when they tell you to do anything and say… |
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Post #AYSTidJt6LIQ6gNKjY by [email protected] |
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@seb321 - Heh. "I'm sorry, my head is pointing 2° off so I can't… |
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Post #AYSVqVGN8iWJLPbyMq by [email protected] |
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@ponyponypony - That's not what happened. (By the way, bouncing radio sign… |
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Post #AYSZMcuKYKc4BNJKc4 by [email protected] |
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@[email protected] Antennae aren't lasers, their gain map is us… |
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Post #AYSZMczeEYrmRrnZtw by [email protected] |
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@greycat - someone on this thread said the antenna had a reasonably good recep… |
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Post #AYSZT4sjST0WgFdhei by [email protected] |
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@johncarlosbaez @tj i'm sure there's some poor sod, who's generally… |
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Post #AYSZT4wzCePUtRd6Ho by [email protected] |
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@StrangeNoises @tj - heh, maybe. But actually any decision this big should be … |
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Post #AYSZg9ZdKCc0zrwOyu by [email protected] |
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@johncarlosbaez from what I understand, they didn't shout, they gave Voyage… |
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Post #AYSZg9eF34IZEA65AG by [email protected] |
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@thomas_decker - they did "shout". But if they hadn't, Voyager … |
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Post #AYSeoUP6GKZBghoBFI by [email protected] |
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@johncarlosbaez @briankrebs Just guessing, could they have used another planet… |
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Post #AYSeoUUPwYotxCIQXA by [email protected] |
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@piere - no, reflecting a beam off a planet would just weaken it and scatter th… |
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Post #AYSgAs8gnOCbcuMx3A by [email protected] |
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@johncarlosbaez @tedric Opportunity’s 90 day lifespan ran 15 f***ing years. … |
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Post #AYSgAsDIWFt9rCWdEW by [email protected] |
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@dan131riley @tedric - yes, my comment was sort of stupid. |
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Post #AYSox9w4jNOYM40NVY by [email protected] |
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@johncarlosbaez I think it is rather impressive that they can still control thi… |
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Post #AYSygskxpmLtyzgXPk by [email protected] |
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@johncarlosbaez 1) after 40 odd years of operation, one should be surprised tha… |
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Post #AYSygspZYe2SDHqDb6 by [email protected] |
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@barrygoldman1 - there have been other goofups with Voyager. |
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Post #AYSypKWYTkB6Q2yQhk by [email protected] |
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@johncarlosbaez what was the wavelength of the signals that they can travel so … |
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Post #AYSypKbWBI9EfRIORM by [email protected] |
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@YurkshireLad - the wavelength doesn't affect the speed at all for electrom… |
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Post #AYTpTVzmRWcFCG7u0O by [email protected] |
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@johncarlosbaez I wouldn’t describe the person who sent the incorrect command… |
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Post #AYTpTW4OAOInQYHaBk by [email protected] |
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@mikesax - 'Twas a joke. The people involved probably felt like idiots whe… |
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Post #AYTsbX0kqlogWg624G by [email protected] |
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@johncarlosbaez Since these signals are so weak when they arrive at earth, they… |
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Post #AYTsbXbycNagO7Vl5M by [email protected] |
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@FMarquardtGroup @johncarlosbaez Well, 1 attowatt @ 20 GHz is still quite a bit… |
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Post #AYTsbXgwJvYodVpioy by [email protected] |
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@fgcallari @johncarlosbaez Great pointer to error correction! Here is a stackex… |
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Post #AYTsbXlY2nFMrnzP0K by [email protected] |
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@fgcallari @johncarlosbaez Great talk about the #Voyager mission:https://www.yo… |
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Post #AYTsbXqrj1V58ITeIC by [email protected] |
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@FMarquardtGroup -Thanks, I'm checking out that stuff! The Golay code, use… |
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Post #AYTvK1EQ3JZqu2pRdQ by [email protected] |
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@[email protected] @[email protected] @gregeganSF@mat… |
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Post #AYTvK1JNkrXz9R9PN2 by [email protected] |
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@u0421793 @gregeganSF @FMarquardtGroup @fgcallari - it's related, but a CD … |
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Post #AYV00tgmZ64yw9kyoK by [email protected] |
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@ponyponypony They did not bounce the signal off anything. Bouncing a radio si… |
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Post #AYV0a9jAvSsOobgl28 by [email protected] |
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@MartinEscardo - yes, it's amazingly impressive. The computers on board th… |
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Post #AYa9atkJhX5wutS1QW by [email protected] |
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@johncarlosbaez awesome post. As a point — Voyager 2 passed by Uranus in 1986… |
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Post #AYa9atpHP545AHlzA8 by [email protected] |
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@spherulitic - Thanks for the correction! Fixed! |
