- If the axial tilt of Uranus (97°) was caused by a giant impact that flipped it on its side, then why do Uranus' moons orbit around its equator at the same tilt (≈97°)? Shouldn't their orbits follow whatever mild axial tilt Uranus had before the hypothetical giant impact?
- What happens if you get a vaccine for a disease you already have antibodies for?
- Can cats recognize their own meow?
- How do the researchers studying Covid-19 (and other viruses) “store” it?
- Spectroscopy Question. Are more stable compounds easier to excite? Reading about UV and how conjugated systems raise the wavelength of a molecule and I'm not sure if I'm missing the point. Is it just that pi and n elections are easier to excite and has no relation to the molecule stability?
- What determines the reverse voltages of diodes?
- What determines the intensity of rain?
- How come we can't throw trash into an active Volcano?
- Is any active part of the human genome thought to be viral in origin?
- Are strings in string theory just field fluctuations?
- How exactly does herd immunity work?
- Any two orbiting bodies lose energy to gravitational waves, but the moon will recede until the Earth is tidally locked to it; Are binary neutron stars that inspiral and merge tidally locked to each other?
- Why cant a ramjet transition to a scramjet?
- When you run and get a stitch, what is it and why is it so painful?
- What goes on in our body when we have the hiccups?
- Are there any unexplored regions on Earth apart from the oceans?
- Could an orbital resonance similar to that of Naiad and Thalassa exist between three moons instead of just two?
- Why do we develop immunity to some diseases, like chicken pox, but not to others, like the flu and colds?
- Does the size of an object determine how big of a sonic boom it makes?
- Is there a difference in the cells that produce uterine walls?
| Posted: 26 Apr 2020 02:24 AM PDT So the most accepted explanation for Uranus' sideway axial tilt is that it once had a normal tilt like the other planets bar Venus (0° to 30°) but then a certain massive object collided with it and caused it to tilt sideways. But by that explanation then shouldn't Uranus' moons be orbiting 0° to 30° (or whatever tilt Uranus had before) rather than over its equator? Did the moons only start forming after the impact? If they were formed before when Uranus still had a mild axial tilt then it makes no sense for them to orbit exactly over present-day Uranus' equator. [link] [comments]  |
| What happens if you get a vaccine for a disease you already have antibodies for? Posted: 25 Apr 2020 08:53 PM PDT With the Covid stuff going around, I'm sure there's some people who gained antibodies without realizing it. Does nothing happen? [link] [comments]  |
| Can cats recognize their own meow? Posted: 25 Apr 2020 03:08 PM PDT Whenever I play videos with cats meowing, my cat freaks out and runs around looking for the supposed cat, he will even wake up if he's asleep. When I play videos or recordings of him meowing he doesn't react at all. So, is this because he can recognize his own meow and if true, is this normal for all cats? [link] [comments]  |
| How do the researchers studying Covid-19 (and other viruses) “store” it? Posted: 26 Apr 2020 08:03 AM PDT May be a dumb or obvious question for many, but I really know nothing about virus research or medicine for that matter. I have read that the virus without a host can stay alive from a few hours to a couple of days. So when these researchers are observing under what conditions the virus thrives or dies, how do they store it and make sure it stays alive indefinitely? Or do they need to get new samples all the time from current hosts? [link] [comments]  |
| Posted: 26 Apr 2020 05:30 AM PDT |
| What determines the reverse voltages of diodes? Posted: 26 Apr 2020 06:06 AM PDT Recently been doing some research on early rectifiers and have learned that almost all common metal oxides will work as a diode, but usually at pretty low backward voltages. The most common were cadmium selenide and copper oxide, but improvised homebrew diodes can apparently be made with ferric oxide or zinc oxide. The issue with them always seems to be the high forward and low backward voltages, cadmium selenide (AKA "selenium rectifiers" in old radios and amps) is 1V forward and 25V reverse, while zinc oxide is 3V at best and copper oxide is often as low as 1V in reverse. Why is this? I know it's something to do with band gaps but how do those relate to actual voltages? [link] [comments]  |
| What determines the intensity of rain? Posted: 25 Apr 2020 06:55 PM PDT Sometimes there are white clouds that cause a huge downpour and sometimes there are dark grey clouds that have a sprinkle. Sometimes the rain goes forever at a steady pace all day and sometimes it does a huge downpour in 10 minutes then nothing else. What makes this happen? I have tried googling but can't find it, bit might be looking for the wrong word. [link] [comments]  |
| How come we can't throw trash into an active Volcano? Posted: 26 Apr 2020 04:48 AM PDT I'm just curious as to why we can't take our landfill trash and put it in a volcano? Wouldn't that get rid of it? I mean I'm sure there has to be a dire consequence that I'm not aware of because I'm sure that's the reason why it isn't happening. [link] [comments]  |
| Is any active part of the human genome thought to be viral in origin? Posted: 25 Apr 2020 11:50 AM PDT Are there any traits that we have that we can thank some ancient viral infection for? [link] [comments]  |
| Are strings in string theory just field fluctuations? Posted: 25 Apr 2020 07:16 PM PDT So Googling "what are strings made of" is not particularly useful for answering this question; I get everything from "nothing, they're purely mathematical" to "they're the fundamental form of all matter and energy", both of which seem...strictly true while not exactly being useful. In layman's explanations of current quantum field theories we're told that all particles are fluctuations within omnipresent fields. Quarks, electrons, photons, everything is a localized spike of the corresponding field(s) value. Are strings just constructs within these fields that exist in one or more dimensions? As an example, is a one dimensional string representing an electromagnetic particle just a vibrating pattern within some subsection (since strings have length) of the electromagnetic field? Put more simply, if I ask "what's doing the vibrating", is the answer "field values in the area defining the string"? Or is this the wrong way to think about it? Does string theory approach fields completely differently? [link] [comments]  |
| How exactly does herd immunity work? Posted: 25 Apr 2020 11:05 AM PDT I admittedly don't know much about the topic, but I've read that in order for herd immunity to be effective, 83-94% of the population must have become immune to whatever infection. Two questions:
[link] [comments]  |
| Posted: 25 Apr 2020 03:46 PM PDT |
| Why cant a ramjet transition to a scramjet? Posted: 25 Apr 2020 09:13 AM PDT It feels to me that the only thing preventing this from happening is a variable inlet and combustion chamber design. A ramjet could accelerate to its top speed and the inlet/combustion chamber can change to allow supersonic airflow and combustion through the engine. Wouldn't it be just a matter of varying the angle of the inlet and combustion chamber's walls? [link] [comments]  |
| When you run and get a stitch, what is it and why is it so painful? Posted: 25 Apr 2020 11:12 AM PDT |
| What goes on in our body when we have the hiccups? Posted: 25 Apr 2020 07:12 AM PDT Also, What causes them, whats their purpose, and if there's any evidence whats the best way to treat them? [link] [comments]  |
| Are there any unexplored regions on Earth apart from the oceans? Posted: 24 Apr 2020 10:27 PM PDT Are there any unexplored regions on earth that could harbor totally different kinds of flora/fauna? If so, could there be any indigenous tribes that we don't know of? Thank you! I don't know which flair to use, hope this is the correct one [link] [comments]  |
| Posted: 25 Apr 2020 10:56 AM PDT (I don't think this is a hypothetical question, exactly, but if this sub thinks it is I'll gladly take it over to AskScienceDiscussion.) Neptune's moons Naiad and Thalassa share a seemingly unique orbital resonance. Because Naiad's orbit is titled relative to Thalassa's, as the one laps the other, Naiad appears to pass "above" Thalassa (as seen from Neptune) twice, and then "below" Thalassa twice. This cycle results in a stable orbital resonance despite the two moons' orbits being very, very close together. Is a similar arrangement with three moons possible? If so, what would it look like? Thanks in advance! [link] [comments]  |
| Posted: 25 Apr 2020 09:30 AM PDT |
| Does the size of an object determine how big of a sonic boom it makes? Posted: 25 Apr 2020 09:19 AM PDT For example, if a pebble was accelerated to Mach 1, would it produce the same type of boom as a supersonic jet? [link] [comments]  |
| Is there a difference in the cells that produce uterine walls? Posted: 25 Apr 2020 08:59 AM PDT When women menstruate, the "blood" is mostly tissue, but what kind of tissue and how is it produced? (i.e. what kind of cell produces this tissue?) [link] [comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment