billslugg's latest activity
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billslugg replied to the thread More on the Big Bang - what was before t = 0?.The universe is: - All there is. -All of space and time and all of its contents. Some of it is not accessible to us, like beyond the... -
billslugg replied to the thread More on the Big Bang - what was before t = 0?.There is only one universe by definition. We can't see all of it, but that doesn't make the hidden parts different universes. Just part...
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billslugg replied to the thread Negative Mass exists, Newton's Laws opposite.Gravity does not act on bodies. Gravity warps space, everything, massive or not, simply follows the space lines, which to everyone at...
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billslugg replied to the thread Negative Mass exists, Newton's Laws opposite.Except sound is not a "thing". A phonon is not a particle. If it was, we could buy them at the curb store to carry our books for us. But...
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I read in a 2023 book that claimed about 1/3 of star systems (of ~ 3,800) have at least 3 exoplanets. So, I have enhanced the program...
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billslugg replied to the thread Negative Mass exists, Newton's Laws opposite.Showing sound phonons moving against gravity is no different that showing a helium balloon going up.
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billslugg replied to the thread SpaceX Crew-8 astronaut released from hospital, returns to Houston.Our HIPPA law precludes public sharing of medical data by medical providers. However, it may have been the person signed that right away...
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billslugg reacted to Questioner's post in the thread Feedtube Rockets & Other Wacked Out Ideas with
Like.
Maybe we could speed up the Earth's rotation. If a day was 90 minutes we could geosynch with the space station. If a day was 20 minutes... -
billslugg replied to the thread Feedtube Rockets & Other Wacked Out Ideas.Moment of inertia of a uniform sphere = 2/5 M r^2 Mass of Earth is 6E24 kg. Radius of Earth = 6.4E6 m. I = 2/5 * 6E24 * (6.4E6)^2 =...
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billslugg replied to the thread Feedtube Rockets & Other Wacked Out Ideas.I wonder how much energy is contained in the rotation of the Earth? We would need to extract a certain amount to cause a problem, but...
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billslugg replied to the thread Europe's bold 'Explore 2040' campaign aims to get astronauts to the moon and Mars.Europe intends to use non-reusable Ariane 6 to support the Gateway plus their Moon and Mars aspirations. At the same time, we have...
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billslugg reacted to Helio's post in the thread Before and after satellite images show lakes appearing across Sahara after deluge of rain soaks desert with Like.
I assume these revealed locations are ideal for archeologist's and anthropologist's digs.
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billslugg reacted to 24launch's post in the thread NASA still working to 'correct and rectify' Boeing Starliner issues after 1st test flight with astronauts with Like.
This statement is incorrect: The first operational mission, Starliner-1, is supposed to go forward in 2025; that said, the timeline...
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billslugg reacted to Helio's post in the thread James Webb Space Telescope finds 1st 'failed star' candidates beyond the Milky Way with Like.
This is interesting since I thought metal poor regions were not great places for small stars, including BDs. But I suppose this is more...
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billslugg replied to the thread NASA still working to 'correct and rectify' Boeing Starliner issues after 1st test flight with astronauts.Boeing was obligated to demonstrate success under a fixed price contract. Once demonstrated then NASA would pay for subsequent flights...
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