Because there are still inconsistencies in scientists' understanding of the universe.
https://www.livescience.com/physicists-drop-objects-satellite-prove-galileo-correct.html
#gravity
if it’s a great SciFi show or not is up for debate. The title is great. The intro is fantastic. The cover design is great.
The plot is (at least partly) pretty confusing and the show ends with an open ending … (it was saved once, by Jeff Bezos himself, and the makers probably hope for more funding? So far not in sight.)
“The Expanse is a 10 book (9 novels & 1 short fiction collection) science fiction series from James S.A. Corey, the pen name for a collaboration between Daniel Abraham and Ty Franck.
The books are numbered here in publication order, which is the order recommended by the authors. There is also an alternative chronological order.”
“James S. A. Corey is the pen name used by collaborators Daniel Abraham and Ty Franck, authors of the science fiction series The Expanse.” (src)
What was nicely designed is the different groups with their different accents (most noticeable “The Belters“, humans, that were born in low gravity and grew up in low gravity, thus unable to adapt to high-gravity planets like Earth or Mars (so the story goes), are doing all the “dirty” work like mining asteroids, they have a “pirate” slang that sounds “Caribbean” to me, “Bossman”, but many words might originate from other languages than English, like “Beratna” (“Bratna” means brotherhood in Russian)).
“Fun” fact: low gravity isn’t healthy either
So when the Belters have a hard time adapting to high gravity environment (as can be seen, when astronauts return from space missions, being unable to lift their own weight, bone density decreased and so on).
Staying in space WITHOUT artificial gravity (which can simply be made by a spinning wheel as shown by Kubrick 1968 classic “2001: A Space_Odyssey”) – for longer – might come with multiple unwanted consequences:
- loss in bone matter:
- “high amount of calcium found in astronaut’s blood during spaceflight (much higher than on Earth) reflects the decrease in bone density, or bone mass. This drop in density, known as disuse osteoporosis, leaves bone weak and less able to support the body’s weight and movement upon return to Earth, putting the astronaut at a higher risk of fracture.” (src: NASA)
- blood clots:
of course: the daily “radiation” weather forecast, are just as important as proper shielding of the space craft and a save-rooms for Astronauts.
btw: not a big fan of SpaceX’s “diver” with “heath-shield-tiles” approach of landing the Starship (It is very risky, and failed the SpaceShuttle, why should it work this time? If one tile comes off… boom. (only difference, StarShip might sustain heat-tile loss a bit longer because of stainless-steel hull.. but still… at high speeds, the atmosphere becomes a cutting torch, really want to risk that?)
Why not do it as with Falcon 9 and have multiple retrograde burns to slow down descent through atmosphere?
(this user here says, “because it would need too much fuel”, with orbital refueling, that would not be a problem right?)
Links:
what scifi goodies might still be out there, that man has never seen before?
https://www.rottentomatoes.com/browse/movies\_at\_home/genres:sci\_fi?page=2
#linux #gnu #gnulinux #opensource #administration #sysops #space #expanse #cosmos #startrek #scifi #gravity #spacex #starship
Originally posted at: https://dwaves.de/2022/04/29/the-expanse-very-well-made-intro-astronauts-need-artificial-gravity-starship-landing-vs-falcon9-landing/
[video width=”810″ height=”440″ mp4=”https://dwaves.de/wp-content/uploads/2022/04/Intro-The-Expanse.mp4″\]\[/video\]
if it’s a great SciFi show or not is up for debate. The title is great. The intro is fantastic. The cover design is great.
The plot is (at least partly) pretty confusing and the show ends with an open ending … (it was saved once, by Jeff Bezos himself, and the makers probably hope for more funding? So far not in sight.)
“The Expanse is a 10 book (9 novels & 1 short fiction collection) science fiction series from James S.A. Corey, the pen name for a collaboration between Daniel Abraham and Ty Franck.
The books are numbered here in publication order, which is the order recommended by the authors. There is also an alternative chronological order.”
“James S. A. Corey is the pen name used by collaborators Daniel Abraham and Ty Franck, authors of the science fiction series The Expanse.” (src)
What was nicely designed is the different groups with their different accents (most noticeable “The Belters“, humans, that were born in low gravity and grew up in low gravity, thus unable to adapt to high-gravity planets like Earth or Mars (so the story goes), are doing all the “dirty” work like mining asteroids, they have a “pirate” slang that sounds “Caribbean” to me, “Bossman”, but many words might originate from other languages than English, like “Beratna” (“Bratna” means brotherhood in Russian)).
“Fun” fact: low gravity isn’t healthy either
So when the Belters have a hard time adapting to high gravity environment (as can be seen, when astronauts return from space missions, being unable to lift their own weight, bone density decreased and so on).
Staying in space WITHOUT artificial gravity (which can simply be made by a spinning wheel as shown by Kubrick 1968 classic “2001: A Space_Odyssey”) – for longer – might come with multiple unwanted consequences:
- loss in bone matter:
- “high amount of calcium found in astronaut’s blood during spaceflight (much higher than on Earth) reflects the decrease in bone density, or bone mass. This drop in density, known as disuse osteoporosis, leaves bone weak and less able to support the body’s weight and movement upon return to Earth, putting the astronaut at a higher risk of fracture.” (src: NASA)
- blood clots:
- “The changes to circulation caused two astronauts to develop small blood clots, which could have been fatal. Fortunately, though, the man and woman affected came to no harm.”
- 09.05.07: “Cardiovascular System Gets ‘Lazy’ in Space; New Study Gets Blood Flowing on Station” (src: NASA)
of course: the daily “radiation” weather forecast, are just as important as proper shielding of the space craft and a save-rooms for Astronauts.
btw: not a big fan of SpaceX’s “diver” with “heath-shield-tiles” approach of landing the Starship (It is very risky, and failed the SpaceShuttle, why should it work this time? If one tile comes off… boom. (only difference, StarShip might sustain heat-tile loss a bit longer because of stainless-steel hull.. but still… at high speeds, the atmosphere becomes a cutting torch, really want to risk that?)
Why not do it as with Falcon 9 and have multiple retrograde burns to slow down descent through atmosphere?
(this user here says, “because it would need too much fuel”, with orbital refueling, that would not be a problem right?)
#linux #gnu #gnulinux #opensource #administration #sysops #space #expanse #cosmos #startrek #scifi #gravity #spacex #starship
Originally posted at: https://dwaves.de/2022/04/29/the-expanse-very-well-made-intro-astronauts-need-artificial-gravity-starship-landing-vs-falcon9-landing/
Ready for take off !
Prêt pour le décollage !
#gravity #stoneart #contemporarysculpture #contemporarysculptures #contemporaryart #abstractshapes #abstractsculpture #flyingsaucer #spaceship #artinstallation #landart #organicshape #contemporaryartfair art #artist #France ##artilove #artcollector #nftartist #womeninnfts #modernarchitecturedesign #oeuvredart #artistefrancais #femmeartiste #artistefrancaise #atelierdartiste #artinvestors #frenchartist #womensart #femaleartistsofinstagram #femaleartist
When on the moon...
#lowgrade #gravity
https://img-9gag-fun.9cache.com/photo/aBn6DDA_460svav1.mp4
1 min #video from the ISS
IL RACONTE SES #VOYAGES DANS L' #ESPACE - #LeMediaPourTous
✅ L'ENTRETIEN CHAPITRÉ :
00:00:00 : Introduction.
00:01:40 : Qui est #Jean-FrançoisClervoy : études, parcours, missions à la #NASA...
00:11:44 : Le vol #ZEROG.
L'invention de la montre pour le #VolSpatial. [Exclu contributeur]
00:15:15 : Être #astronaute, un #rêve ?
Devenir astronaute : le processus de sélection. [Exclu contributeur]
00:18:30 : Les #astronautes sont-ils des robocops ?
00:20:40 : Le #métier d'astronaute ! À terre et dans l' #espace.
00:33:30 : Qu'est-ce qu'on ressent à la vue de la #Terre depuis l'espace ?
00:49:05 : L'espace, le #risque, le #danger et les #accidents.
L'espace, les #milliardaires et #SpaceX. [Exclu contributeur]
01:01:03 : Les #Chinois, les #Américains et la reconquête de la #Lune.
01:10:44 : Les #complots de la Lune, de la #TerrePlate et la #Science.
01:26:07 : #Conseils aux jeunes qui veulent devenir astronautes.
01:32:32 : Le #film #Gravity ?
Le film First Man et son ami Buzz Aldrin. [Exclu contributeur]
01:36:38 : La Lune et la Conclusion.
🔴 PITCH
Jean-François Clervoy est astronaute et fait partie des 10 français ayant voyagé dans l'espace. Vétéran de trois missions spatiales avec la NASA, dont une pour réparer le télescope Hubble, Jean-François Clervoy est également à l'origine du développement des vols paraboliques #ZERO-G en France. Au micro de #VincentLapierre, le français de 63 ans nous raconte son parcours extraordinaire.
https://www.youtube.com/watch?v=dSAgRSA2XBI
📚 Le #livre de Jean-François #Clervoy cité par Vincent : https://livre.fnac.com/a2695108/Jean-...
Energy Vault asks investors to bet on pre-commercial gravity storage tech ahead of NYSE listing
Special purpose acquisition company (SPAC) Novus Capital Corporation II chose to merge with novel gravity and kinetic energy-based storage company Energy Vault after receiving target proposals from more than 100 different firms.
https://www.energy-storage.news/energy-vault-asks-investors-to-bet-on-pre-commercial-gravity-storage-tech-ahead-of-nyse-listing/
#vault, #mechanical, #gravity, #kinetic, #long-duration, #investment, #news, #energy
LIGO: Water water everywhere, but not a drop to drink......
It's worth noting that the 03 LIGO run has now found 50+ "signals" which LIGO claims are celestial in origin, yet they've failed to provide a single new example of a multimessenger event in 2019/2020. Thus far it's been signals, signals everywhere and not a drop of light (or neutrinos) to see.
While the 2017 mutlimessenger event seemed impressive even to a skeptic like me, it is still statistically possible that the one 2017 example of multimessenger astronomy was a statistical fluke, and a random coincidence.
_
I had hoped that my concerns about LIGO's biased and sloppy methodology would have been put to rest by now, but alas I'm more skeptical of their claims today than I've ever been. There's no particular or logical reason why all BBH merger events should never produce EM radiation that is visible on Earth, nor is there any logical reason why the none of the six or so claims about BNS mergers could be verified by visual support._
IMO this whole LIGO mess reeks of the Joseph Weber scenario all over again, only this time the "LIGO bars" cost 200+ billion dollars to build.
https://www.semanticscholar.org/paper/E ... fbf96907cc
In the paper that I wrote in 2017, I cited five specific major problems with LIGO's methodology, a bias in favor of celestial claims as to cause, including a lack of a veto method associated with all claims of celestial origins of signals, a fuzzy sigma figure that has no relationship to the actual cause of any given signal, no logical ability to distinguish between what LIGO calls "blip transients" and GW signals, etc.
I half expected that my concerns about their questionable methodology might be put to rest in 03, but unfortunately LIGO seems to have painted themselves into a scientific corner.
Joseph Weber claimed to have observed hundreds of gravitational wave events using his 'Weber bar" design, but when other individuals/groups tried to build their own device and replicate his findings, they could not. Virgo is the closest thing to a modern day equivalent of such an effort, but it's costs are orders of magnitude greater, and the results are certainly damning when you look at the 03 data.
Around 20 or so of the so called "signals" reported to the gracedb database during the 03 LIGO/Virgo run, which were originally categorized as being celestial in origin because they were picked up by multiple detectors (sometimes all three), were later "retracted" and later attributed to terrestrial sources. This seems to support my concern that it's virtually impossible to distinguish between a "blip transient" which might be observed in multiple detectors and a real GW signal. Furthermore, we can see by LIGO's new naming convention in 03 (adding letters to the end of signals), that "blip transients", which look extremely similar to gravitational wave signals, are routinely picked up on pretty much a daily basis. In short, LIGO has no logical method to differentiate between terrestrial blip transient events, and gravitational waves. The only way to correct that problem would be to add a veto "method" to their methodology that requires multimessenger support for celestial origin claims. We all know that's never going to happen.
It's also very telling that LIGO has reported 6 new binary neutron star mergers, and 45 or so BBN mergers, yet even with improved sensitivity and better triangulation potential, LIGO has yet to duplicate a single new instance of multimessenger support.
It took years for Joseph Weber's claims to eventually be debunked, and it was only possible by building additional detectors. In this case however, the detectors don't just cost a few thousands of dollars to replicate, they cost 200 billion+ dollars to replicate. The difficulty involved in debunking such claims has increased my many orders of magnitude. In this case, unlike the case with Weber, even when Virgo (or a LIGO detector) fails to detect a signal when the other two detectors do, they do not use that lack of detection to cast doubt on the LIGO claims, rather they handwave and make up excuses for that lack of detection. Admittedly, the Virgo detector isn't quite as sensitive as the LIGO systems, and it's orientation is different, but that's now being used an excuse to not attempting to "debunk" the celestial origin claims. Essentially no effort is being made to test the veracity of LIGO's claims, at least not yet. That may change as other detectors in India and Japan come online, but at the moment there's been no effort made to test the veracity of LIGO's GW claims. All we can therefore go by is LIGO (now terrible) track record at replicating multimessenger astronomy. They're 0 for 50+ in the 03 run of 2019/2020. If this trend continues, they'll be 0 for around 70 by the end of the 03 run in April/May.
I must say that I'm not surprised, but I'm disappointed. It would have been a real game changer in astronomy if LIGO's claims of a celestial origin of these signals were proven during the 03 run, but apparently that's not going to happen. Now what?
#gravity #astrophysics #physics #LIGO #VIRGO #corruption #science #regressive
https://www.thunderbolts.info/forum3/phpBB3/viewtopic.php?f=3&t=159
Many of the "physics" terms used in other disciplines ...
... originally started in other disciplines.
@woozle@hey.iseeamess.com happens to bring up the concept of "physics envy" as he discusses the term "power" used in a political context
It should be remembered that the concepts of power and gravity were actually borrowed by physics:
c.1300, "ability; ability to act or do; strength, vigor, might," especially in battle; "efficacy; control, mastery, lordship, dominion; legal power or authority; authorization; military force, an army," from Anglo-French pouair, Old French povoir, noun use of the infinitive, "to be able," earlier podir (9c.), from Vulgar Latin *potere, from Latin potis "powerful" (see potent).
Whatever some hypocritical ministers of government may say about it, power is the greatest of all pleasures. It seems to me that only love can beat it, and love is a happy illness that can't be picked up as easily as a Ministry. [Stendhal "de l'Amour," 1822]
Meaning "one who has power" is late 14c. Meaning "specific ability or capacity" is from early 15c. Meaning "a state or nation with regard to international authority or influence" [OED] is from 1726. Used for "a large number of" from 1660s. Meaning "energy available for work is from 1727. Sense of "electrical supply" is from 1896.
c.1500, "weight, dignity, seriousness," from Middle French gravité "seriousness, thoughtfulness," and directly from Latin gravitatem (nominative gravitas) "weight, heaviness, pressure," from gravis "heavy" (see grave (adj.)). The scientific sense of "force that gives weight to objects" first recorded 1640s.
Those established terms were adopted by natural philosophers (they weren't yet scientists -- 1834, from "science" + "artist") as they found a need for language to describe the new concepts they were positing. More recently it's been quarks, charm, and spin.
In my own explorations of economics and the many, many, many flaws in existing orthodox theory, one of the pretty evident historical accidents is that economics modeled itself after classical Newtonian statics, dating to the late 1600s, just as the concepts of energy and thermodynamics were being established. Smith wrote in 1776, while the first scientific use of "energy" is dated to 1807, and Lord Kelvin's formal expression of thermodynamics didn't occur until 1854.
#science #economics #physicsenvy #etymology #power #energy #gravity #scientist #artist #thermodynamics