FrostyWinnipeg Posted November 3, 2022 Report Posted November 3, 2022 A 23-ton Chinese rocket will fall to Earth Friday. But when and where will it land? https://trib.al/bVYeqPl
iHeart Posted November 10, 2022 Report Posted November 10, 2022 https://deadline.com/2022/11/space-shuttle-challenger-wreckage-nasa-history-channel-discovery-1235169282/
Tracker Posted November 10, 2022 Report Posted November 10, 2022 50 minutes ago, iHeart said: https://deadline.com/2022/11/space-shuttle-challenger-wreckage-nasa-history-channel-discovery-1235169282/ FYI: At least some of the crew were still alive on the way down but NASA suppressed the radio signals and wiped the recordings.
the watcher Posted December 1, 2022 Report Posted December 1, 2022 As Spock would say, " Fascinating " https://www.theguardian.com/science/2022/dec/01/scientists-simulate-baby-wormhole-without-rupturing-space-and-time blue_gold_84 1
blue_gold_84 Posted December 2, 2022 Report Posted December 2, 2022 https://www.space.com/james-webb-space-telescope-saturn-moon-titan Quote Titan is a strange world — a little bit Earthlike, if land were made of water ice, rivers and seas were filled with liquid methane and other hydrocarbons, and the atmosphere were thick and hazy, dotted with methane clouds. And now, the James Webb Space Telescope (Webb or JWST) has observed two of those clouds during observations on Nov. 4 that have thrilled scientists, according to a NASA statement. the watcher and Tracker 1 1
FrostyWinnipeg Posted December 25, 2022 Report Posted December 25, 2022 (edited) https://www.ctvnews.ca/sci-tech/a-15-tonne-meteorite-crashed-in-africa-now-2-new-minerals-have-been-found-in-it-1.6208405 We got our best people investigating it. Edited December 26, 2022 by FrostyWinnipeg the watcher 1
the watcher Posted January 2, 2023 Report Posted January 2, 2023 Kettle calling the pot black ? https://www.theguardian.com/science/2023/jan/02/china-moon-nasa-space-race
FrostyWinnipeg Posted January 2, 2023 Report Posted January 2, 2023 (edited) 3 hours ago, the watcher said: Kettle calling the pot black ? https://www.theguardian.com/science/2023/jan/02/china-moon-nasa-space-race Ad Astra foretold the future. Edited January 2, 2023 by FrostyWinnipeg
SpeedFlex27 Posted January 2, 2023 Report Posted January 2, 2023 2 hours ago, FrostyWinnipeg said: Ad Astra foretold the future. Ed Asner? the watcher and Tracker 2
FrostyWinnipeg Posted January 12, 2023 Report Posted January 12, 2023 A comet from the outer solar system is set to swing through our cosmic neighborhood this month for the first time in 50,000 years. https://nbcnews.to/3GYfv7h JCon, Wideleft, blue_gold_84 and 1 other 3 1
Tracker Posted January 12, 2023 Report Posted January 12, 2023 9 hours ago, FrostyWinnipeg said: A comet from the outer solar system is set to swing through our cosmic neighborhood this month for the first time in 50,000 years. https://nbcnews.to/3GYfv7h If you are superstitious, the is is an omen of great event(s) to come soon. FrostyWinnipeg and Wideleft 1 1
JCon Posted January 12, 2023 Report Posted January 12, 2023 7 minutes ago, Tracker said: If you are superstitious, the is is an omen of great event(s) to come soon. It's coming to take us believers away. I've got my comet bag packed. Tracker and blue_gold_84 1 1
blue_gold_84 Posted January 12, 2023 Report Posted January 12, 2023 Just now, JCon said: It's coming to take us believers away. I've got my comet bag packed. Me when I see the comet: JCon 1
FrostyWinnipeg Posted January 12, 2023 Report Posted January 12, 2023 1 hour ago, Tracker said: If you are superstitious, the is an omen of great event(s) to come soon. I am not but it does not hurt sending my 2022 Grey Cup Game lucky charm to someone anonymously in Regina. Tracker 1
Tracker Posted January 12, 2023 Report Posted January 12, 2023 50 minutes ago, FrostyWinnipeg said: I am not but it does not hurt sending my 2022 Grey Cup Game lucky charm to someone anonymously in Regina. They wouldn't recognize what it is. FrostyWinnipeg 1
TrueBlue4ever Posted January 13, 2023 Report Posted January 13, 2023 10 hours ago, Tracker said: To put this into context, Sirius is 8.611 light years from Earth (just over 50 trillion miles away). At 9 miles per second, it will take 5.8 trillion years for that star to reach Earth. Since the Sun will consume Earth in 7.5 billion years, I’d say we have more pressing concerns. But to add more context to 8.6 lights years and distance, the Moon is 239,000 miles from Earth, which equates to 1.3 light seconds. Wideleft 1
Rich Posted January 13, 2023 Report Posted January 13, 2023 9 minutes ago, TrueBlue4ever said: To put this into context, Sirius is 8.611 light years from Earth (just over 50 trillion miles away). At 9 miles per second, it will take 5.8 trillion years for that star to reach Earth. Since the Sun will consume Earth in 7.5 billion years, I’d say we have more pressing concerns. But to add more context to 8.6 lights years and distance, the Moon is 239,000 miles from Earth, which equates to 1.3 light seconds. It actually won't reach the consumed Earth. Quote Sirius appears bright because of its intrinsic luminosity and its proximity to the Solar System. At a distance of 2.64 parsecs (8.6 ly), the Sirius system is one of Earth's nearest neighbours. Sirius is gradually moving closer to the Solar System, so it is expected to increase in brightness slightly over the next 60,000 years, reaching a peak magnitude of −1.68. After that time, its distance will begin to increase, and it will become fainter, but it will continue to be the brightest star in the Earth's night sky for approximately the next 210,000 years, before Vega, another A-type star and more luminous than Sirius, becomes the brightest star.[26] https://en.wikipedia.org/wiki/Sirius JCon and blue_gold_84 1 1
Tracker Posted January 29, 2023 Report Posted January 29, 2023 Why More Physicists Are Starting to Think Space and Time Are ‘Illusions’ This past December, the physics Nobel Prize was awarded for the experimental confirmation of a quantum phenomenon known for more than 80 years: entanglement. As envisioned by Albert Einstein and his collaborators in 1935, quantum objects can be mysteriously correlated even if they are separated by large distances. But as weird as the phenomenon appears, why is such an old idea still worth the most prestigious prize in physics? Coincidentally, just a few weeks before the new Nobel laureates were honored in Stockholm, a different team of distinguished scientists from Harvard, MIT, Caltech, Fermilab and Google reported that they had run a process on Google’s quantum computer that could be interpreted as a wormhole. Wormholes are tunnels through the universe that can work like a shortcut through space and time and are loved by science fiction fans, and although the tunnel realized in this recent experiment exists only in a 2-dimensional toy universe, it could constitute a breakthrough for future research at the forefront of physics. But why is entanglement related to space and time? And how can it be important for future physics breakthroughs? Properly understood, entanglement implies that the universe is “monistic”, as philosophers call it, that on the most fundamental level, everything in the universe is part of a single, unified whole. It is a defining property of quantum mechanics that its underlying reality is described in terms of waves, and a monistic universe would require a universal function. Already decades ago, researchers such as Hugh Everett and Dieter Zeh showed how our daily-life reality can emerge out of such a universal quantum-mechanical description. But only now are researchers such as Leonard Susskind or Sean Carroll developing ideas on how this hidden quantum reality might explain not only matter but also the fabric of space and time. Entanglement is much more than just another weird quantum phenomenon. It is the acting principle behind both why quantum mechanics merges the world into one and why we experience this fundamental unity as many separate objects. At the same time, entanglement is the reason why we seem to live in a classical reality. It is—quite literally—the glue and creator of worlds. Entanglement applies to objects comprising two or more components and describes what happens when the quantum principle that “everything that can happen actually happens” is applied to such composed objects. Accordingly, an entangled state is the superposition of all possible combinations that the components of a composed object can be in to produce the same overall result. It is again the wavy nature of the quantum domain that can help to illustrate how entanglement actually works. Picture a perfectly calm, glassy sea on a windless day. Now ask yourself, how can such a plane be produced by overlaying two individual wave patterns? One possibility is that superimposing two completely flat surfaces results again in a completely level outcome. But another possibility that might produce a flat surface is if two identical wave patterns shifted by half an oscillation cycle were to be superimposed on one another, so that the wave crests of one pattern annihilate the wave troughs of the other one and vice versa. If we just observed the glassy ocean, regarding it as the result of two swells combined, there would be no way for us to find out about the patterns of the individual swells. What sounds perfectly ordinary when we talk about waves has the most bizarre consequences when applied to competing realities. If your neighbor told you she had two cats, one live cat and a dead one, this would imply that either the first cat or the second one is dead and that the remaining cat, respectively, is alive—it would be a strange and morbid way of describing one’s pets, and you may not know which one of them is the lucky one, but you would get the neighbor’s drift. Not so in the quantum world. In quantum mechanics, the very same statement implies that the two cats are merged in a superposition of cases, including the first cat being alive and the second one dead and the first cat being dead while the second one lives, but also possibilities where both cats are half alive and half dead, or the first cat is one-third alive, while the second feline adds the missing two-thirds of life. In a quantum pair of cats, the fates and conditions of the individual animals get dissolved entirely in the state of the whole. Likewise, in a quantum universe, there are no individual objects. All that exists is merged into a single “One.” https://www.thedailybeast.com/why-more-physicists-are-starting-to-think-space-and-time-are-illusions?ref=home
Mark F Posted March 5, 2023 Report Posted March 5, 2023 (edited) On 2023-01-29 at 3:00 PM, Tracker said: As envisioned by Albert Einstein and his collaborators in 1935, quantum objects can be mysteriously correlated even if they are separated by large distances I think this writer has this wrong. pretty sure that einstein was a quantum skeptic. I have tried to understand some of this stuff on a kindegarten level, and it is utterly beyond me. more like magic than what I think of as science. Edited March 5, 2023 by Mark F
Tracker Posted March 5, 2023 Report Posted March 5, 2023 1 hour ago, Mark F said: I think this writer has this wrong. pretty sure that Einstein was a quantum skeptic. I have tried to understand some of this stuff on a kindergarten level, and it is utterly beyond me. more like magic than what I think of as science. You are correct in that Einstein saw quantum mechanics as " spooky action at a distance" and tried his best to ignore it. However it has persisted and has been repeatedly proven by such experiments as they have been able to design. Quantum mechanics are used to design all current electronics, so it is tangible and even has theological implications. For example, it is a tenet of quantum mechanics that nothing can exist without being aware of by an conscious being. It also supports the propositions of "The Holographic Universe"- a book that I have treasured for a long time. Bohr famously said, " If you think you understand quantum mechanics, you are wrong. If you think you do not understand quantum mechanics, you are right". Mark F 1
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