Does the discovery of gravitational waves mean that eventually we will be able to detect and map dark matter as gravity is the only evidence of its existance? |
- Does the discovery of gravitational waves mean that eventually we will be able to detect and map dark matter as gravity is the only evidence of its existance?
- Why does dopamine and other "feel good" chemicals actually feel good? Why is our brain happy when it experiences these chemicals?
- does everything emit gravitational waves?
- Why does water have no taste or smell?
- Do g-waves attenuate with time(or when they interact with matter)?
- How does the 'security pattern' in the Canadian polymer bills work?
- Does a container with a perfect vacuum in it float?
- Is a measurement of Planck time arbitrary in time?
- How close to GW150914 (the black hole merger) would I have to be to feel the gravitational waves on my body?
- Why does superconductivity only happen when its cold?
- Given the extreme difficulty of unifying Gravity with the other three fundamental forces is it not likely that it's just a completely unrelated phenomenon?
- Would a Cro Magnon born today be smarter than a modern human since Cro Magnon had larger brains?
- Are the LIGO detectors susceptible to seismic activity?
- Why does atmosphere thickness (and ground pressure) does not depend solely on planet's surface gravity ?
- How to convert sucrose mol/dm^3 to concentration %?
- How can you measure something at 1 billion light years away, if it would take at least 2 billion years to measure that distance?
- can a blind person get motion sickness?
- Why does Oklahoma have so many earthquakes when it's not on a fault line?
- Why are long radioactive half-lives bad when talking about waste from nuclear power generation? Doesn't a long half life mean there is less radioactivity?
- Why are viruses non-living when they are not in the lytic cycle and attached to a living host?
- How can animals such as a snake, shark, or alligator only eat once a month to a year and live such long lives?
| Posted: 13 Feb 2016 06:00 PM PST |
| Posted: 13 Feb 2016 09:12 PM PST |
| does everything emit gravitational waves? Posted: 13 Feb 2016 05:52 PM PST hello I did a lot of googling and there seems to be a lot of confusion regarding the new discovery, in one paper i read that only accelerating things emit gravitational waves, in the other i read that only moving objects do. If only moving objects do, moving compared to what?? Could anyone explain how does this work exactly? Another question: they are waves, so they should have frequencies and amplitudes? how do those values get determined exactly? [link] [comments]  |
| Why does water have no taste or smell? Posted: 13 Feb 2016 05:46 PM PST |
| Do g-waves attenuate with time(or when they interact with matter)? Posted: 13 Feb 2016 09:14 PM PST If they do attenuate, how can we determine the source considering the waves could have interacted with a random number of matter [link] [comments]  |
| How does the 'security pattern' in the Canadian polymer bills work? Posted: 13 Feb 2016 06:28 PM PST Short description of what I'm talking about: In 2011, the Bank of Canada started issuing the Frontier Series of Canadian banknotes, which were the first to be produced on polymer. If you look through the circle in the middle of the frosted maple leaf, there is kind of a 'display' of the denomination of the bill. How does this work? Specifically, why can't I see it on the actual bill (i.e. in the reflection of the circle), and why does it stay centred on the point of light? For that matter, why does it only work with a small light source anyways? Examples: https://www.youtube.com/watch?v=UnNAhJk0Qqs, https://www.youtube.com/watch?v=P5r_9b4XuSA [link] [comments]  |
| Does a container with a perfect vacuum in it float? Posted: 13 Feb 2016 06:26 PM PST |
| Is a measurement of Planck time arbitrary in time? Posted: 13 Feb 2016 05:15 PM PST Does a measurement of Planck time have to occur during a discrete period/cycle (i.e. clock cycle), or can it be measured during any arbitrary period along an infinite timeline? And if time is not infinite, does this then impose a universe "clock cycle"? [link] [comments]  |
| Posted: 13 Feb 2016 02:15 PM PST I asked this question in the megathread, but it was buried, so I'm trying again here. How close would I have to be to the GW150914 event (the black hole merger) to feel the effect of the gravitational waves on my body? [link] [comments]  |
| Why does superconductivity only happen when its cold? Posted: 13 Feb 2016 09:44 PM PST |
| Posted: 13 Feb 2016 03:16 PM PST As I understand it gravity is a fairly stable deformation of spacetime (or, possibly the cause of the deformation, I'm unclear on the specifics), while the other three forces have no similar effect. In fact it seems to behave completely differently from the others, and to me this suggests it isn't similar enough to be unified (seems like suggesting that a rope and a phone call are similar because they can, given the right circumstances, be used to move an object closer to me). Why, then, is there such a strong desire within the physics community to unify them? Or (and I consider this far more likely, given my relative ignorance on the subject compared to actual physics researchers) am I completely missing something? [link] [comments]  |
| Would a Cro Magnon born today be smarter than a modern human since Cro Magnon had larger brains? Posted: 13 Feb 2016 08:54 PM PST |
| Are the LIGO detectors susceptible to seismic activity? Posted: 13 Feb 2016 02:18 PM PST Saw this gif of how the LIGO detectors worked to determine gravitational waves and it got me thinking, if the two detectors are separated by a large distance (in this case Louisiana and Washington), and are trying to measure perturbations smaller than a proton, couldn't seismic activity confound the data? [link] [comments]  |
| Posted: 13 Feb 2016 02:35 PM PST Venus has a lower surface gravity than Earth, yet its atmospheric pressure is much bigger ... Has this something to do with atmosphere composition ? Bonus question : With the same composition, would atmospheric pressure be then only dependent on planet gravity ? Thanks [link] [comments]  |
| How to convert sucrose mol/dm^3 to concentration %? Posted: 13 Feb 2016 04:45 PM PST |
| Posted: 13 Feb 2016 03:01 PM PST |
| can a blind person get motion sickness? Posted: 13 Feb 2016 12:19 PM PST |
| Why does Oklahoma have so many earthquakes when it's not on a fault line? Posted: 13 Feb 2016 09:51 AM PST Many of the links I found were just talking about fracking causing them, but these quakes have happened long before fracking and it doesn't make sense to me. [link] [comments]  |
| Posted: 13 Feb 2016 12:38 PM PST When reading news about long term storage of nuclear waste I get the impression that a long half life is much worse than a shorter half life. I get that a very short half life is good. If it has a half life of hours or days it is easy to contain until it is no longer radioactive. But when we are talking about hundreds of years compared with hundreds of thousands of years, both are essentially gonna be around "forever" from a human perspective. Then it seems like 1000x less radiation might be better. [link] [comments]  |
| Why are viruses non-living when they are not in the lytic cycle and attached to a living host? Posted: 13 Feb 2016 12:41 PM PST I got this information from Pearson's Biology textbook. Correct me if I'm wrong. [link] [comments]  |
| Posted: 13 Feb 2016 07:37 PM PST What is the process in their bodies that allow them to eat so seldom? [link] [comments]  |
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