Why doesn't the water of the mediterranean sea mix with the atlantic ocean? |
- Why doesn't the water of the mediterranean sea mix with the atlantic ocean?
- Why is chiropractic considered pseudoscience and quackery, when thousands of people try it with great results?
- When someone says "x is titrated against y" which is in the burette and which is in the flask?
- If a drug or vaccine fails an animal trial, how can scientists be certain that it will similarly fail a human trial, given the different physiologies between species?
- Andromeda is the closest galaxy to the Milky Way but is the Milky Way the closest galaxy to Andromeda?
- Why is the tuberculosis vaccine given in some countries and not others?
- Why our planet heating up when space have temperature like -270°C / -418°F .. it's possible to shiphon this cold temperatures to our planet and stop global warming??
- How are black holes infinitely massive when they came from x amount of mass?
- What is the pathophysiology of anosmia due to Covid?
- With All of the COVID Vaccines Being Developed, Will Those in the Placebo Group Be Notified as Such When a Vaccine is Approved?
- When were electron orbital shapes/probability distributions calculated, and how were the shapes of the orbitals determined with such certainty before access to reasonably fast computation?
- When video quality drops, the image becomes more pixelated. What exactly happens when audio quality drops?
- Can someone explain what the Valance bond theory and Molecular orbital theory are?
- Why do fruits get sweeter as they ripen?
- In about 5 billion years the sun will turn into a red giant will there be any negative effects for earth or we'll still be able to carry life like usual? Considering that we are still around as a species.
- Why are large parts of continental plates covered in ocean, and what determines the actual size and shape of the landmasses?
- When scientists say that the universe is expanding, does that mean it's a finite size and there is something outside of the universe?
- Are insentropic release paths a good approximation of real-world final states of shocked matter?
- Is it possible for a planet to have rings perpendicular to the planet's axis of rotation?
| Why doesn't the water of the mediterranean sea mix with the atlantic ocean? Posted: 20 Aug 2020 05:22 PM PDT |
| Posted: 20 Aug 2020 04:17 PM PDT Is it entirely placebo or are the results actually "legit" and the problem is just that the procedure has no real scientific basis? So basically, it works but we don't know why? Is it something else? [link] [comments]  |
| When someone says "x is titrated against y" which is in the burette and which is in the flask? Posted: 21 Aug 2020 05:14 AM PDT |
| Posted: 20 Aug 2020 10:40 PM PDT Scientists often use mice to test for drugs and vaccines, but we know that not all successes in rodent trials translate to successes in human trials due to the different physiology between species. But what about the reverse? Could there be drugs that might have worked in humans but weren't successful in rodent trials and were therefore never pursued further? [link] [comments]  |
| Posted: 20 Aug 2020 09:24 PM PDT |
| Why is the tuberculosis vaccine given in some countries and not others? Posted: 20 Aug 2020 06:19 PM PDT Wouldn't the countries without mandatory vaccinations be prime spots of infection for TB? Also, even if a country like America has low rates of TB, wouldn't administration completely diminish its presence? [link] [comments]  |
| Posted: 21 Aug 2020 03:30 AM PDT |
| How are black holes infinitely massive when they came from x amount of mass? Posted: 21 Aug 2020 03:24 AM PDT I've been watching lots of YouTube on space stuff and generally most videos say if a core of a star exceeds 4 solar masses (after blowing up)then it can't support its own gravity and falls into an infinitely small point with infinite mass. Where does the mass come from? Why would a black hole have an event horizon but a star doesn't when from, what I understand, it only got smaller? [link] [comments]  |
| What is the pathophysiology of anosmia due to Covid? Posted: 20 Aug 2020 08:36 PM PDT |
| Posted: 20 Aug 2020 09:54 PM PDT With tens to hundreds of thousands of people needed to the COVID-19 vaccine studies that are winding up globally, anywhere from 33% to 50% of patients will get a placebo instead of a vaccine. When a vaccine is finally approved for use nationwide (or globally), there is a very high change that the studies for other drugs will still be happening. If someone is in the placebo group, are they likely to be notified that they did not get a vaccine and then be encouraged to get an injection of the new/approved drug? If the answer is "yes," is this a common occurrence in the world of medicine or is COVID a one-off? [link] [comments]  |
| Posted: 20 Aug 2020 02:19 PM PDT In school, we were taught about S, P, D, F etc. orbitals, and their shapes, with all the weird toroidal and lobed shapes with spatial nodes in various places and all of their relative energy states. How were these things determined in spite of being beyond our direct observation? It seems that all of this was determined by the generation of physicists spanning the 1920s through the 50s. How was any of this figured out to such a high degree of confidence without access to electronic computation and advanced microscopy (if microscopy could even verify such things)? Here's a video introducing the complex shapes of orbitals, weird spatial nodes, etc. for those who don't know what I'm referring to: https://youtu.be/4WR8Qvsv70s?t=30 [link] [comments]  |
| Posted: 20 Aug 2020 05:31 PM PDT I was watching major league baseball on my phone last night and I lost 4G service for several minutes. During that time, the video quality dropped but the audio changed as well, sounding almost muffled. What is going on when this happens? [link] [comments]  |
| Can someone explain what the Valance bond theory and Molecular orbital theory are? Posted: 20 Aug 2020 04:55 PM PDT So I am trying to learn O-chem, and I do not understand what these theories are and what the differences/ similarity between the two. [link] [comments]  |
| Why do fruits get sweeter as they ripen? Posted: 20 Aug 2020 02:08 PM PDT Fruits such as apples, mangos, and bananas seem to be sweeter when they are ripe compared to when they are green. Is there sugars already in the fruits when they're green but we can't taste them for some reason or is it synthesized as the fruit ripen? [link] [comments]  |
| Posted: 20 Aug 2020 03:43 AM PDT |
| Posted: 20 Aug 2020 07:11 AM PDT I understand that continental plates are less dense than oceanic plates, and I know when they collide the oceanic plate slides under the continental plate which raises the continental plate. What I don't understand is why so much of the continental plates are covered with water and why the the edges of the continental plates are not land. For example, why is the Australian plate so large, but the continent of Australia is relatively small. What caused the continent to be shaped the way it is, and why is the continent in the middle of the plate and not hugging one of the edges? [link] [comments]  |
| Posted: 20 Aug 2020 07:10 AM PDT I guess I always assumed the universe was infinite, but I've seen several references that the universe is expanding and that we know pretty conclusively that it is expanding. If something is expanding, doesn't that mean by definition it must be a finite size? I guess I would have thought that something can only be getting bigger if it's not infinitely big already (or maybe I'm completely misunderstanding what is meant by the universe expanding?). Is there any idea of what exists outside of the universe? Also, sorry if the tag is wrong. I put astronomy, but I really wasn't sure which one would be appropriate. [link] [comments]  |
| Are insentropic release paths a good approximation of real-world final states of shocked matter? Posted: 20 Aug 2020 07:52 AM PDT In a single shock experiments materials are shocked to a point on the hugoniot with high pressures and temperatures. The material then releases through an isentropic release path to ambient pressure and lower temperatures. Being isentropic, the assumption is that the process is adiabatic with no heat transferred to the surroundings. In real world experiments and phenomenon, is the heat transfer out of the shocked material sufficiently slow that the isentropic release path accurately predicts the temperature of the material upon full release to ambient pressure? [link] [comments]  |
| Is it possible for a planet to have rings perpendicular to the planet's axis of rotation? Posted: 20 Aug 2020 02:49 AM PDT Just like the title is asking, is it possible for a planet or celestial body to have rings orbiting perpendicularly to its "host". Additionally is it possible for a body to have rings rotating in the opposite direction of the "host's" rotation. [link] [comments]  |
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