With people under quarantine and practicing social distancing, are we seeing a decrease in the number of people getting the flu vs. expectations? |
- With people under quarantine and practicing social distancing, are we seeing a decrease in the number of people getting the flu vs. expectations?
- Why is Neptune warmer than Uranus?
- Do starfish have a favorite limb or do they have the equivalence of humans being ambidextrous?
- If a speaker is traveling at Mach 1 in the air and faces the direction it is moving towards, will the sound waves travel the 322 m/s in addition to Mach 1 speed? If I am flying 10 feet in front of the speaker at the exact same speed, will I hear the oscillation as sound?
- In nuclear reactors, why is it that (light) water can act as *either* a moderator or as a neutron absorber depending on the reactor design?
- What about tectonic plate rifting?
- Could the anti-psychotic dopamine supersensitivity potentially be used as a more permanent 'treatment' for ADHD? [Neuroscience]
- If somebody has a virus, but has very mild symptoms, is it because they have a weaker form of the virus, the person's specific immune system, or some other reason I'm not thinking of?
- Do tall people have bigger inner organs (heart, lungs, etc)?
- How do animals that doesn't have endoskeleton produce blood if blood is produced at the bone marrow?
- Does drinking coffee/tea hydrate or dehydrate you?
- At what point if at all, do an exotic species become a native species?
- What causes the relatively uniform distribution of adipose tissue in the human body ?
- It is believed that time behaves differently near massive objects like black holes or earth. This theory is proved by measuring the time at the bottom and top of a tower. How did they measure time in this case?
- How does our digestive system distribute nutrients to specific parts of our body? [Human Body]
- What causes the snap crackle pop noises when you urinate against a hard surface?
| Posted: 12 Mar 2020 06:01 PM PDT Curious how well all these actions are working, assuming the flu and covid-19 are spread similarly. [link] [comments]  |
| Why is Neptune warmer than Uranus? Posted: 12 Mar 2020 12:07 PM PDT |
| Do starfish have a favorite limb or do they have the equivalence of humans being ambidextrous? Posted: 12 Mar 2020 09:17 AM PDT I have watched timelapse videos of starfish "walking." Do they favor one of their limbs as being the leader over the others? [link] [comments]  |
| Posted: 12 Mar 2020 04:18 PM PDT Asking because I have little understanding of the concept of relativity in these types of situations. This point was brought up by a classmate in a class forum. [link] [comments]  |
| Posted: 12 Mar 2020 02:18 PM PDT The way I understand the roll of water in nuclear reactors is this: In reactors that use low-enriched uranium, water acts as both the coolant and the moderator, creating a negative void coefficient. In reactors (namely RBMK reactors) that use natural uranium and light water, water isn't capable enough as a moderator for the core to reach criticality, therefore there needs to be a strong moderator, hence the graphite rods in the RBMK design. The water then acts as the coolant and as a weak neutron absorber, thereby creating a positive void coefficient. Now, I'm confused about the moderation and absorption capabilities of water, because I would think that water is EITHER a net moderator or a net absorber, meaning that while water both moderates and absorbs neutrons, it does one of those better than the other. Specifically in the RBMK design, I'm confused why the increase of voids, therefore a decrease in water density, increases reactivity rather than both the moderating and absorption effects of the water decreasing, therefore resulting in a net zero change from the effects of the water specifically, regardless of the presence of graphite. In other words, even with an increase in voids and a decrease in the neutron absorption, I would expect the water to ALSO decrease in moderation, thereby "balancing out," so to speak. I'm especially confused, because it seems like water has more moderating capability than absorption since it's used as a moderator in many LEU reactors, so I might expect moderation from the water to decrease more than the decrease in absorption, therefore an overall decrease in core reactivity (so I guess that'd be a negative void coefficient in this case?) So, even if it's used as an absorber in the RBMK reactors, the water has to also have a moderating effect as well, albeit much weaker than the graphite, right? As a quick aside, I've also used the neutron scatter/capture chart on this page, and don't know how to compare the values of scattering versus capturing, i.e. whether an element is more likely to scatter than capture or vice versa. [link] [comments]  |
| What about tectonic plate rifting? Posted: 12 Mar 2020 08:24 AM PDT So rifting is when plates break apart..but does that mean that the amount of tectonic plates is increasing? [link] [comments]  |
| Posted: 12 Mar 2020 08:42 AM PDT I discovered this was a thing and knowing that dopaminergic drugs are used for ADHD treatment I was wondering if that information could somehow be used. Is there a way to target the dopamine-pathways normally underactive in people with ADHD with the anti-psychotics for a while, discontinuing and having a permanent higher sensitivity? [link] [comments]  |
| Posted: 12 Mar 2020 08:55 AM PDT I know that back before vaccines people would say "Oh Jimmy has very mild X, go catch it from him so you'll get a mild case instead of waiting to get a bad case." Is that true at all? [link] [comments]  |
| Do tall people have bigger inner organs (heart, lungs, etc)? Posted: 12 Mar 2020 08:45 AM PDT Tall people have generally more space for organs than short people. Does this mean their organs ar bigger, or is there more empty (well, i guess its filled with something?) space between the organs? Does that have any affect to health? What about very short people? Do they have very small organs or are they... Squished? If the organs are a bit bigger in tall people, what would happen if you put a short persons organ in a very tall person? Would it underperform? Could a very tall persons organs be donated to a very short person? Would it fit? [link] [comments]  |
| How do animals that doesn't have endoskeleton produce blood if blood is produced at the bone marrow? Posted: 12 Mar 2020 08:40 AM PDT |
| Does drinking coffee/tea hydrate or dehydrate you? Posted: 12 Mar 2020 05:36 AM PDT Fairly simple question that seems to get very different answers. Does drinking coffee or tea hydrate your body or make you more dehydrated? [link] [comments]  |
| At what point if at all, do an exotic species become a native species? Posted: 11 Mar 2020 10:14 PM PDT Can an exotic species become so well intregrated into the local ecosystem that it can be consider a native to that system? [link] [comments]  |
| What causes the relatively uniform distribution of adipose tissue in the human body ? Posted: 12 Mar 2020 12:08 AM PDT Why does adipose tissue gets stored some in the abdomen, some thighs, some under chin etc. Instead of all being stored in thigh and none in abdomen for example. [link] [comments]  |
| Posted: 11 Mar 2020 09:45 PM PDT Let's say we used a smart watch, will being at different places change how the software calculates a second? [link] [comments]  |
| How does our digestive system distribute nutrients to specific parts of our body? [Human Body] Posted: 11 Mar 2020 07:36 PM PDT Like when we eat certain food, how does our body know where to send protein to certain organs, or iron to blood, etc. How are nutrients segregated or filtered then assigned to specific areas? [link] [comments]  |
| What causes the snap crackle pop noises when you urinate against a hard surface? Posted: 11 Mar 2020 09:02 PM PDT Self explanatory, I suspect that it has something to do with fluid dynamics and/or the shape of the stream? [link] [comments]  |
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