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Mystery solved! You've heard of "fake news" before? Someone just makes up some news that didn't really happen, it's completely fake?
originally posted by: Steffer
Here's a GIFV version on this instead, perhaps that might work.
Menacing clouds and fog over Lake Superior
I didn't see any option to download the gif file, I had to read the html source code to find the link to that. Their GIFV whole scheme seems crazy to me, they should just pick a format and use that. This is innovation in the wrong direction if you ask me.
the name is a misnomer. GIFV is not a GIF at all. It's not even really a file! It's a set of HTML5 instructions that converts the video clip to a highly compressed MP4 or webm file, then tells it to play automatically and loop forever, just like a GIF...
Unlike true GIFs, GIFV and other HTML5 variations are tethered inextricably to the browser they are viewed in. You can share them as an embeddable object within various services and sites, but you can't download and view them on your computer. You can't email them, or archive them locally, except as video files. Imgur says it will always give users the option to download the actual GIF file, but then you're giving up all the advantages of GIFV.
I imagine a supernova would be pretty loud if there was an atmosphere around the star to carry the sound, but there's no air or other media in space to carry sound so the distance question is a non-starter. Deep interstellar space has maybe one or two hydrogen atoms per cubic meter and that's not going to carry sound. The moon has a far "denser" atmosphere compared to interstellar space, and even that wasn't dense enough to carry any significant sound because it's still a better vacuum than the vacuums we can usually make on Earth.
originally posted by: Steffer
What is the loudest theoretical sound in the universe?
At approximately how much distance would there need to be from this to record the audio of such an event?
That's why transporter technology seen on Star Trek seems dubious at best, it's really a death machine that kills the subject and hypothetically makes a copy somewhere else, which is only as good as the fictitious "Heisenberg compensator" allows, LOL.
originally posted by: Hyperboles
flesh and blood wont survive in a zero mass condition
Richard Feynman said something one time that implied he thought we would probably figure everything out so we are living in a golden time while we still have mysteries to uncover. I remember thinking that was an optimistic view. Undoubtedly we will continue to learn more but for every question we answer, it seems like a new one pops up so I'm with you in thinking it doesn't seem likely we will ever figure everything out. I do think there's a possibility we will figure out what dark matter is, but there's no guarantee of that. It's possible some dark matter is some kind of particles that just don't interact with ordinary matter at all, in which case it may not be possible to confirm what it is with direct detection. We would have to continue to rely on indirect inferences such as gravitational lensing and galactic rotation curves. We also have a long list of things we know most of it isn't, like baryonic matter, and primordial black holes, etc, so knowing what it isn't may not tell us what it is, but it does add to our knowledge by narrowing down the possibilities.
originally posted by: sapien82
I think this also maybe one of the things we may never find out or discover
humans love to think they can figure everything out and we like to think the universe will just yield and offer up all the answers. I doubt it very much , and humans will never know the truth of the mystery that is the universe
sort of like a wee game , to keep us going !
We are so sure of ourselves as a species that we will master everything
Just for one hypothetical example, we haven't scientifically confirmed even one other intelligent species outside of Earth, but there could be hundreds, thousands, or millions of intelligent species to catalog with lots of information about each one. We've explored a lot of the Earth's land surface, but limited amounts of what's under the land and we haven't even explored much of our oceans, and it doesn't seem technically feasible to explore the deepest parts of the Earth due to temperatures and pressures exceeding engineering constraints. So the Earth is an infinitesimally small speck relative to the universe and we can't even count the whole earth as something we understand.
originally posted by: rom12345
At what percentage of 'understanding of the universe', do you believe the human race now is at now ?
originally posted by: sapien82
so if consciousness does manifest reality in that its a mind over matter universe , then dark matter is just all the matter that is waiting to be manifested into things !
originally posted by: sapien82
a reply to: Arbitrageur
I wasnt being silly , I was thinking about it for a long time yesterday !
the unobserved matter will remain unobserved because it has yet to be manifested in the universe!
So for the third post, you decide to build a wood deck on the back of your house, make some plans, buy the nails and lumber and then construct it. I don't see what that has to do with your earlier two posts, because the trees that your deck lumber came from didn't pop into existence when you decided to build a deck. I can't follow your train of thought here and it still seems like you're being silly but I can't tell. At least with dragonridr I could tell he was being silly when he said you could disengage from higgs by getting your mass to zero, so I made a silly reply too, and that's ok, but you said you weren't being silly. It seems like you were and still are.
originally posted by: sapien82
First I think about it, then I imagine it in 3d , then I sketch it 3d on paper , then I plan out how to make it real
then do it !
Lasers are cool but they have limitations. A little fog can make them ineffective, and they have limits to their range because the beam spreads out over distance, but those limitations don't stop them from being developed.
originally posted by: Steffer
What would be the most likely possibility of advanced, futuristic warfare?
Lasers (weapons using light as a wave or particle) or acoustical (vibrations, frequencies, focused sound wave) weapons?
I love this thread so expect me to ask even dumber questions than this.
railguns are still very much at the research stage, and it remains to be seen whether or not railguns will ever be deployed as practical military weapons. Any trade-off analysis between electromagnetic (EM) propulsion systems and chemical propellants for weapons applications must also factor in the novelty and complexity of the pulsed power supplies that are needed for electromagnetic launcher systems.
In addition to military applications, NASA has proposed to use a railgun to launch "wedge-shaped aircraft with scramjets" to high-altitude at Mach 10, where they will then fire a small payload into orbit using conventional rocket propulsion.[5] The extreme g-forces involved with direct railgun ground-launch to space may restrict the usage to only the sturdiest of payloads. Alternatively, very long rail systems may be used to reduce the required launch acceleration.[6]
I'm trying to follow your context and train of thought and am not really following it. You mentioned "dark matter is just all the matter that is waiting to be manifested into things" and I was trying to see where you were going with that idea but now it sounds like you're no longer talking about that but have switched gears into what sounds more like a positive-thinking pep-talk that "you can accomplish whatever you set out to do", which really has nothing at all to do with dark matter, or are you saying it does, and if so I don't see the connection.
originally posted by: sapien82
Thats why I asked , were you thinking of instant materialisation of objects , or through manifestation from thought to real world object !
I don't think you understand what Feynman says about philosophy and you didn't understand his example of gravity in the video I posted in your other thread...you made some comment about something completely different from gravity which showed you didn't even seem to understand he was talking about gravity.
I don't know how important it is, which is why after I started to prepare a reply and it sounded negative like I was arguing with you I decided to drop it because it didn't seem that important. But since you're pressing me for a response, you mentioned the time index a little after 10 minutes was where you thought he was generalizing and no longer talking about gravity. I think you're missing two things:
originally posted by: delbertlarson
do you still believe I am misunderstanding something important from the Feynman video?
In a way I suppose it's supportive in the sense that he not only entertained looking at problems from different angles, he insisted on it, and you're trying to look at things from different angles.
After thinking more, I realize that second video you posted from Feynman is quite supportive of my point of view. (Perhaps that was your intent - if so, thanks.) I had acquired a somewhat negative view of Feynman as being one of those "only the math is important" types. I am not sure where I got that view, and I am happy my view was wrong. His comments about the Mayan astronomers are pretty much exactly where I find myself today. Yes, the Standard Model coupled with relativity can exactly explain experimental results - but it has no (by design) reality-based, physical-model underpinning. I do have a reality-based, physical-model underpinning (much like Feynman's real, physical, orbiting moon) but of course the status quo has done far more to fit data to its equations than I have, so they have lots more calculations, just like the Mayans had.
I don't know. The half-life appears to be at least 10E34 years from experiment. That's just a lower limit, it could be much longer, if it has a half-life at all.
originally posted by: Slickinfinity
Do you think protons will eventually decay?
Do you think some unknown particle or natural phenomenon could change everything we think we know about the eventual heat death of the universe?
How is so much energy contained in an atom?