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Post AtutAIYMS7ILffZBPk by [email protected] |
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More posts by [email protected] |
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Post #Atuab1bXg2gdnN5Kz2 by [email protected] |
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Did you see this? It's an artist's conception of how gravity from the… |
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Post #AtubJdMyd2XpfBXlIW by [email protected] |
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This 2005 photo, taken by the Cassini probe, was the first time anyone actually… |
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Post #AtubiUjxqhZG8j9NZY by [email protected] |
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There's a larger gap in the A ring called the Encke cap, created by a large… |
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Post #AtubsAGcp4bnXU2Q8u by [email protected] |
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@johncarlosbaez I did see this! But, I didn't know if it was a reconstructi… |
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Post #AtucHfPq9MNlNtVbVI by [email protected] |
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Now here is a really *great* actual photo of Daphnis and the ripples it creates… |
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Post #AtucPFArbDfUJY7HPc by [email protected] |
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@johncarlosbaez I was curious if the impression image was from fairly rigorous … |
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Post #AtuceOEYCNYSku3z1c by [email protected] |
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@johncarlosbaez am I imagining the ripples here? |
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Post #AtucfG7JrTr9s75yFc by [email protected] |
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@johncarlosbaez are there clues here about how we could shepherd our Low Earth … |
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Post #AtudSMnlnSVKnGMr20 by [email protected] |
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Here's a nice photo of Daphnis in the Keeler gap in real color! It was ta… |
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Post #AtueNfD61jIcOPXEeG by [email protected] |
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@johncarlosbaez Here's some more renderings by Kevin Gill:https://www.flick… |
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Post #AtuehEBcD7rGN5AgFM by [email protected] |
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@johncarlosbaez Ok.. it's time to send a space probe up there and take some… |
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Post #Atug6M16KnDnqnnYqO by [email protected] |
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@johncarlosbaez wow! |
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Post #AtugJhlolayn5B12ye by [email protected] |
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@johncarlosbaez This whole thread is all about so much of amazing science. Obse… |
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Post #Atuh6HpA1RKanlkFMG by [email protected] |
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@johncarlosbaez awesome picture, fantastic thread. Thank you |
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Post #AtuiTf6XjTF9cRaMnw by [email protected] |
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@johncarlosbaez Interesting images. I wonder: why are the ripples ahead of Daph… |
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Post #Atuk1WkPPTMJV4wcXQ by [email protected] |
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@johncarlosbaez That thread was fantastic. Thank you for posting it. 🤌 |
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Post #Atuk2LGjZYvQBoS8rg by [email protected] |
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@johncarlosbaez science is beautiful. Especially if theoretical calculations an… |
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Post #AtumBwxh05txbfFuIC by [email protected] |
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@johncarlosbaez awesome. I learnt something new. So, ehm, if Daphnis is ~8km ac… |
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Post #AtumMsza6EGgTrLzMm by [email protected] |
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@johncarlosbaez I believe "taken in red, green, and blue and then recombin… |
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Post #AtusZGl4ADDNOBquS8 by [email protected] |
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@otte_homan wrote: " So, ehm, if Daphnis is ~8km across, and is likely jus… |
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Post #AtuslUdqN3pNvIIqQq by [email protected] |
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@benh - great question! I bet some experts on celestial dynamics and/or spacec… |
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Post #Atut0HXVMocfdBOEMa by [email protected] |
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@ehproque bingo! @johncarlosbaez |
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Post #Atut0HeawSIHzAhtPk by [email protected] |
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@otte_homan @ehproque - to state the now obvious: no, you were not imagining th… |
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Post #AtutAIYMS7ILffZBPk by [email protected] |
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@johncarlosbaez Is the inner debris moving faster than Daphnis and the outer mo… |
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Post #AtutNX6leI2wZpyEt6 by [email protected] |
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And here's an excellent image of Daphnis taken by the Cassini spacecraft on… |
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Post #AtutfZydilR2gfm34i by [email protected] |
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@johncarlosbaez After seeing the photos, can we declare that "actual photo… |
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Post #Atutfa5NJip51YvQZc by [email protected] |
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@xgebi - you're right, I found some truly beautiful ones. I would still l… |
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Post #Atuu6wPCROPk4BFCwC by [email protected] |
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@johncarlosbaez @otte_homan there's something else you can see when it'… |
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Post #AtuuKJSk1gpBLEHF3I by [email protected] |
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@NickSchwanck - thanks! |
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Post #Atuun6qtzRlad4JF20 by [email protected] |
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Finally, here's a really crazy picture by Kevin Gill - a view you could onl… |
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Post #AtuvaXi0vUpI74ivCq by [email protected] |
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@johncarlosbaez they say the rings are stupid thin and flat. not in this regio… |
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Post #AtuwNA8TMMrBBwHbtY by [email protected] |
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@johncarlosbaez @otte_homan Could it be that Daphnis rotates as well as orbits? |
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Post #AtuwNAFYw0WnXvbGwi by [email protected] |
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@Kendal857 -I just read that Daphnis is tidally locked so one side always faces… |
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Post #AtuwRwhoif0UzH6156 by [email protected] |
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@johncarlosbaez Oh! That drawing had me thinking it was real as well - wth didn… |
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Post #AtuwrRHEC48n2dobdQ by [email protected] |
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@penguin42 - btw, Kevin Gill doesn't just do space art, he also creates pho… |
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Post #AtuwzCL5cE211uJyvw by [email protected] |
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@johncarlosbaez @otte_homan {"And, how come one set of ripples is to the l… |
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Post #AtuxKNHG8u852Fcxkm by [email protected] |
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@johncarlosbaez Great thread. Thanks for getting all these images together and … |
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Post #AtuxrSEKkVSPx725RY by [email protected] |
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@johncarlosbaez The first and second (5/n) were my favorites. I love real ;)A… |
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Post #AtuyCZj64cqlHaUdd2 by [email protected] |
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@johncarlosbaez @otte_homan My layman's gut feeling:1. Daphnis inclination … |
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Post #Atv1DjAEllrKhnQeKe by [email protected] |
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@johncarlosbaez This is beautiful. Thank you for sharing. |
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Post #Atv1Xvuz3nAW3Kvf16 by [email protected] |
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@johncarlosbaez A cruise around the Rings of Saturn is a bit more interesting t… |
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Post #Atv2YhGp6bbOrq4XlQ by [email protected] |
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@bhagabati - thanks! |
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Post #Atv2bzSDxFw28GyWrA by [email protected] |
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@Sable_Shade - yes, that must be true, by how Newtonian gravity works. |
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Post #Atv2hflC5cGGn2YeIK by [email protected] |
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@Lazarou - a bit. |
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Post #Atv3REd3INJXxrTXJQ by [email protected] |
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@ives - your "layman's gut feeling" sounds pretty good to me. I&… |
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Post #Atv69m5iRbr6OcFTAu by [email protected] |
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@johncarlosbaez I remember a physics colloquium in the 80s (maybe the late 70s?… |
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Post #Atv6hkdCNXzFiK6wka by [email protected] |
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@yora @johncarlosbaez Not simultaneously is the implied meaning. Like the earli… |
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Post #Atv6nsEX1k2r1rUc3k by [email protected] |
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@johncarlosbaez actually |
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Post #Atv6uQOUvnFsiLHIxc by [email protected] |
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@ives @johncarlosbaez @otte_homan Possibly a gravity effect. After all if a par… |
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Post #Atv6uivm0oZGCkz8KG by [email protected] |
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@ArtHarg @johncarlosbaez My uneducated guess: rings don't rotate as a solid… |
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Post #Atv71iDp2vHo27lA4e by [email protected] |
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@attilakinali @johncarlosbaez read the story. They've been there. They took… |
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Post #Atv74w7holEK14R6J6 by [email protected] |
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@johncarlosbaez Sometimes cool things really do exist! |
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Post #Atv7rqIAHr9q7WeGYa by [email protected] |
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@johncarlosbaez This is a really nice thread. Thank you very much für sharing … |
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Post #Atv97O8qogXLOxGiYa by [email protected] |
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@johncarlosbaez Your NASA quote:"Material on the inner edge of the gap orb… |
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Post #Atv97P3ZPnuIEro0xs by [email protected] |
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@johncarlosbaez Oh, I managed to unpack it a little:The wave is a standing up-d… |
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Post #Atv9CzPretKMSCthke by [email protected] |
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@johncarlosbaez upon first glance, i thought this was a white cat's paw rea… |
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Post #AtvBUgPxEWICeTVK3U by [email protected] |
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@rothko - great! Now it looks like that to me too! |
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Post #AtvBWCT3YccwLJg7wO by [email protected] |
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@ditol - thanks! |
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Post #AtvC1Ql4TXNHdozqnw by [email protected] |
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@kristinHenry - yes, it's great how starting by seeing a mysterious gap in … |
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Post #AtvC8Zm7LiQzdLtRRI by [email protected] |
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@Niall - thanks! |
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Post #AtvCD7lqtbmWEBwDB2 by [email protected] |
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@ehproque - yes, that dot is Daphnis! |
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Post #AtvCQzEFS3tln0pWCG by [email protected] |
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@Yuras - you're right, the inner rings rotate faster.You wrote: "Why r… |
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Post #AtvCVC6TWflKsUCUoi by [email protected] |
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@duncan_blues - I don't know how well the calculations match the observatio… |
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Post #AtvDejupHaEoIwrpWy by [email protected] |
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@androcat - I think your unpacking is right.I checked and found that Daphnis is… |
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Post #AtvE9P4SpeUKdKzryi by [email protected] |
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@weekend_editor - I could spend a lifetime studying the rings of Saturn! So ri… |
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Post #AtvEmdrTm6kPncdM1Y by [email protected] |
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@benjohn - I'm pretty sure that Kevin Gill's images were *not* generate… |
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Post #AtvFCJU89o0e8DxBei by [email protected] |
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@johncarlosbaez So this just leaves me with one question: Why is the ring pertu… |
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Post #AtvFCJa9nOpWQum036 by [email protected] |
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@androcat wrote:"Why is the ring perturbed by the presence of a tide locke… |
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Post #AtvFDasexxZSNB2OMC by [email protected] |
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@johncarlosbaez cool! The pictures are great 🙂 |
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Post #AtvGtUQ1TuO6RrBU5w by [email protected] |
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@johncarlosbaez @Yuras Fascinating article, thank you! I thought those waves we… |
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Post #AtvKFEPfyDBH2c54kK by [email protected] |
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@johncarlosbaez phantastic thread! Thanks!! |
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Post #AtvLEM93pxqGgbSK24 by [email protected] |
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@johncarlosbaez Great pictures, interesting thread with interesting commentary … |
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Post #AtvMfQOaF5KndpBgsC by [email protected] |
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@johncarlosbaez @androcat @otte_homan When looking at it in a rotating point of… |
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Post #AtvOSOiJNr5gZLKao4 by [email protected] |
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@dougmerritt - holy moly, I *live* for feedback, as long as it's intelligen… |
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Post #AtvOXX63dx2G14t2y8 by [email protected] |
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@populistensohn - thanks! |
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Post #AtvOjFi66yq9ZIGg3U by [email protected] |
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@isaackuo - Thanks. I still don't get it where the wavy pattern comes from.… |
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Post #AtvWQ0i8SDJLBCcaQq by [email protected] |
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@johncarlosbaez @androcat @otte_homan Just imagine the moon slowly moving past … |
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Post #AtvXJgvdBvDy2hU6j2 by [email protected] |
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@johncarlosbaez Ah; I should have guessed that. Maybe I misunderstood because *… |
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Post #AtvnANsOFxOBc5YJxg by [email protected] |
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@johncarlosbaez that is a beautiful paper. The numerics of it must be mindboggl… |
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Post #AtwkozzxphoUj4jKWu by [email protected] |
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@otte_homan - I don't see them discussing how they did the calculation, but… |
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Post #Atwlk1XAnPoRzkSGZc by [email protected] |
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@isaackuo - I didn't see how the moon moving slowly past a bunch of initial… |
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Post #AtwyyuqPFX7Ezjsm36 by [email protected] |
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@isaackuo I tend to disagree. It moves at a horrendous speed, about 60'000 … |
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Post #Atwyyux8qUVHKd29Y0 by [email protected] |
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@otte_homan @johncarlosbaez @androcat I'm not sure precisely what you mean … |
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Post #Atwyyv2oVP2ZcDggO8 by [email protected] |
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@isaackuo wrote: "The reason you don't see the ripples all the way aro… |
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Post #Atx00CEqAEdfBYUBHc by [email protected] |
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@johncarlosbaez @otte_homan @androcat The shepherding effect is more subtle tha… |
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Post #AtxF6GT0qzx1LlSyn2 by [email protected] |
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@johncarlosbaez Back in 2017 I became completely obsessed with the rings of Sat… |
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Post #AtxG0li1soNsSkQw2C by [email protected] |
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@CharlesGWaldman - wow, that's great! I'm planning to do a fun little b… |
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Post #AtxGJndYwHwjwbQ1tg by [email protected] |
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@johncarlosbaez I misspoke, this is not the Keeler gap. I was just about to co… |
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Post #Atz1qjCTLXgkk8uXOi by [email protected] |
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@johncarlosbaez There's a connection with Ford circles too. If you have one… |
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Post #Au0lPxu1MiEZZZPuM4 by [email protected] |
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@isaackuo It's a bit hidden in the picture text, but it appears that the up… |
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Post #Au0lPy2AsOkvyrEQ40 by [email protected] |
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@androcat @johncarlosbaez @otte_homan I think you misunderstand what I mean by … |
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Post #Au0lPy8uTM8yJkNnYu by [email protected] |
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@isaackuo Oh, right, the relativity of orbital mechanics does throw me for a lo… |
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Post #Au0lPyFe4JX0edXB3o by [email protected] |
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@androcat @johncarlosbaez @otte_homan The out-of-plane component of the ripples… |
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Post #Au0lPyMNfGv2zWgYYi by [email protected] |
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@isaackuo Thanks, that was the missing piece :)" it bobs up and down out o… |
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Post #Au0lPySPIrjvIDVMx6 by [email protected] |
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@androcat @isaackuo - thanks to both of you for going into more detail about th… |
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Post #Au123CaYINuJgH2fBo by [email protected] |
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@johncarlosbaez @isaackuo This reminds me, what are the mathematical limits on … |
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Post #Au123Cgvuf0m041l8S by [email protected] |
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@androcat - I think a ton is known about which 3-body problems are chaotic and … |
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Post #Au14i7yAZdJb8VjP5U by [email protected] |
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@johncarlosbaez @androcat In practical terms, we don't really need to worry… |
