- Why can I see the wheel spokes on a car as it goes by if I'm not looking directly at it, but if I try to follow the wheels with my eyest hey are all blurred together ? Does the the brain only sample vision outside the center periodically so I get a strobe type affect?
- When will the James Webb Telescope start taking images?
- Could it be that there is a black hole at the center of every galaxy? And that is what causes the spiral, is the slow vacuum that is eating the galaxy’s? Just curious
- Why is there no such thing as simultaneity?
- Where does the length of the nerve go during a rotationplasty?
- Are all parts of the Universe experiencing things simultaneously?
- Why do ores even exist? Why isn't the Earth more homogenous?
- How well does Electricity travel through molten metal?
- Why does galvanic corrosion not occur within the metal alloy itself?
- Base-catalyzed hydrolysis of amides is actually not catalysis?
- Are moving closer to or farther from the Virgo Cluster?
- Are there exotic solvents (or solutes) for which freezing point depression and boiling point elevation are reversed (so the liquid is destabilized)?
- What is the current scientific consensus regarding the relationship between Eukaryotes and Archaea?
- Does the movement of tectonic plates affect maps and coordinates?
- What caused the mountain formations between Altoona and Harrisburg, PA?
- What dictates how long a rapid antigen test keeps showing positive for a virus when you are currently recovering from an infection? How long the protein antigen stays visible for the test and how sensitive they are?
- How common is Human Herpes 8?
- When borax is added to spoiled milk is the reaction that neutralises the bad smell an example of an acid reacting with a base?
- Do precipitates ever float on the surface of the solution instead of settling down?
| Posted: 13 Jan 2022 07:37 PM PST Waiting at a stoplight and seeing the cars go by, if I just look at the intersection I can tell that the wheels of cars going by have spokes. But if I look at a car's wheels themselves and follow them as they go by, the spokes are just a blur. Does the the brain only sample vision outside the center periodically, so I get a strobe type affect? [link] [comments] |
| When will the James Webb Telescope start taking images? Posted: 13 Jan 2022 09:33 PM PST |
| Posted: 13 Jan 2022 05:33 PM PST |
| Why is there no such thing as simultaneity? Posted: 13 Jan 2022 07:00 PM PST If the nearest galaxy is 250k light years away, I understand that by the time that light reaches us and we observe that galaxy, we're actually seeing it as it was 250k years ago. But why does this translate to this galaxy being 250k years in the past? Why can't we say that something happens simultaneously in our galaxy and that one, but they won't be observed for 250k+ years? If there was some way to observe both galaxies at the same time, wouldn't everything happen simultaneously? [link] [comments] |
| Where does the length of the nerve go during a rotationplasty? Posted: 13 Jan 2022 01:48 PM PST I was wandering around YouTube the other night and saw this video , but it doesn't fully explain how the excess length of the nerve is managed. I know you can cut blood vessels and reattach them shorter, but does this work like that? Or do the doctors spool it up around the bone or something? Thanks. Edit: spelling [link] [comments] |
| Are all parts of the Universe experiencing things simultaneously? Posted: 14 Jan 2022 12:41 AM PST Or because space and time are flexible is it possible for someone that lives on the opposite side of the Universe, if they were to step into a wormhole that brought them to earth that earth could still be in 50 million bc or millions of years in the future. Or would they always arrive in the current time period. [link] [comments] |
| Why do ores even exist? Why isn't the Earth more homogenous? Posted: 13 Jan 2022 12:50 PM PST It seems like the dust from supernovae shouldn't collect in clumps of similar atoms, but settle fairly uniformly across gravitational bodies they encounter. At most, I'd expect supernovae elements to be found in fairly even, thin layers about any gravitational object, but instead we find ores. How does a streak of (say) mostly iron end up in our crust, or on an asteroid? Are they believed to be the result of Fe-rich asteroids, or is there a mechanism that makes the Fe atoms clump together in the magma of a young planet? [link] [comments] |
| How well does Electricity travel through molten metal? Posted: 13 Jan 2022 04:06 PM PST Concidering that there are different conductivities amongst different metals, how well would an Olympic sized pool of melted down, highly conductive metal pass electricity? [link] [comments] |
| Why does galvanic corrosion not occur within the metal alloy itself? Posted: 13 Jan 2022 02:48 PM PST I mean, metal alloys are mixtures of several elements, and sometimes have two or more metallic elements. Wouldn't galvanic corrosion affect this alloy on its own as there are dissimilar metals? Bonus question I just thought of, we know how to calculate the galvanic index etc between two metal elements via their electronegativity/anodic potential etc.. How do we do that for alloys? For rough example, an alloy of 90%iron,10%tin that is in contact with copper; do we do weighted average for the alloy in comparison with the other dissimilar metal? [link] [comments] |
| Base-catalyzed hydrolysis of amides is actually not catalysis? Posted: 13 Jan 2022 10:42 PM PST Why is base-catalyzed hydrolysis called base catalysed when u don't get back ur initial catalyst in it's original form (OH-)? [link] [comments] |
| Are moving closer to or farther from the Virgo Cluster? Posted: 13 Jan 2022 02:47 PM PST I couldn't find a very clear explanation on google, but is the milky way and the local group moving closer to or farther from the virgo cluster? Are we gravitationally bound to it? Also, I'm not talking about the virgo super cluster just the virgo cluster. Google kept confusing the two. [link] [comments] |
| Posted: 13 Jan 2022 03:41 PM PST Been thinking about this (repeatedly) salting a driveway https://www.scientificamerican.com/article/why-do-we-put-salt-on-icy/ [link] [comments] |
| What is the current scientific consensus regarding the relationship between Eukaryotes and Archaea? Posted: 13 Jan 2022 10:55 AM PST In the traditional 3-domain system, the domains Bacteria, Archaea, and Eukaryota are all distinct from one another, with the latter 2 usually being sister-groups in a clade. However recent evidence has come to light showing that Eukaryotes might have arose within Archaea, rather than being the sister group to it. More specifically, Eukaryotes might have evolved from the Asgard archaean superphylum). What is the current consensus towards this issue? Do most evolutionary scientists today still consider Eukaryotes to be the sister group to Archaea? Or is it thought that eukaryotes are archaeans? [link] [comments] |
| Does the movement of tectonic plates affect maps and coordinates? Posted: 12 Jan 2022 11:26 PM PST I don't know how fast they move but could something with specific coordinates like a pirate map be rendered ineffectual in, say, 1 million years from now due to tectonic plates shifting? How long would it take? [link] [comments] |
| What caused the mountain formations between Altoona and Harrisburg, PA? Posted: 13 Jan 2022 02:51 PM PST I'm not a geology major. What forces created the lines of mountains between the two cities in the title? [link] [comments] |
| Posted: 13 Jan 2022 11:59 AM PST Persons immune system starts to clean the pathogen but does these tests show particles from viruses that can't longer infect another person? [link] [comments] |
| Posted: 13 Jan 2022 03:23 PM PST Wondering if hhv8 is family common in the general population [link] [comments] |
| Posted: 13 Jan 2022 10:55 AM PST So back in Victorian times they added borax to spoiled milk to neutralise the bad odour. They thought it was drinkable. It wasn't and they kept poisoning themselves. My question is about acids and bases. I was told that acids taste sour, bases taste bitter, so I assumed that the reaction that takes place in the spoiled milk is boracic acid neutralising a base because of the neutral odour (and I assume neutral taste). My questions are as follows: 1) what is the chemical reaction occuring when borax is added to spoiled milk, and 2) is this an example of a reaction of a base and an acid? [link] [comments] |
| Do precipitates ever float on the surface of the solution instead of settling down? Posted: 12 Jan 2022 09:41 PM PST |
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