Why is dengue fever more likely to be lethal the second time you get it? |
- Why is dengue fever more likely to be lethal the second time you get it?
- Why do we get sore throats?
- In movies/tv they say there are always a percentage of people who are naturally immune to new diseases, is this true and are there people naturally immune to COVID-19 specifically?
- Is there any actual evidence to support the idea that foot fetishes are caused by a "cross-wiring" in the brain of genitalia and feet?
- What happens mechanically when I activate “eco-mode” when driving my car? How about “sport mode” ?
- What were (or I guess are) the levels of breakthrough infections with the Polio Vaccine when it was first administered?
- What causes gas flow exiting from a tube to become sonic upon exit into a large vacuum cavity?
- What muscles are in charge of fingers when pressing on objects?
- Does the human eye's depth of field change with iris dilation?
- What effect does the pH of water have on radish seed germination?
- Why doesn't rain fall put of a cloud all at once?
- Why is Hokkaido, Japan so much colder than the state of Oregon, on the other side of the Pacific and at the same latitude?
- Do space telescopes get damaged by radiation?
- How come when you pull/tear a muscle you don’t get stronger?
- Do bears instinctively know that bees guard tasty honey?
| Why is dengue fever more likely to be lethal the second time you get it? Posted: 09 Aug 2021 07:16 AM PDT It's the one disease I've heard of where multiple infections makes you respond worse, not better. Is this actually normal for a lot of other diseases that I just don't know about? Or is dengue fever somehow unique? [link] [comments]  |
| Posted: 09 Aug 2021 06:34 PM PDT I know how we get sore throats (i.e. from viral or bacteria infections), which seems to be the only answers that come up when I try to ask this question online; what I'm curious about is the why. We get a cough to try and loosen mucus, we get a fever to allow the body/immune system to work more efficiently, but why do we get a sore throat? What purpose does it serve physiologically, if any? Or, is it a side effect of something else? [link] [comments]  |
| Posted: 09 Aug 2021 04:34 PM PDT I'm watching The Last Ship right now (lol), and i realized while they're discussing the Immune, we've not really heard anything about any people being naturally immune to COVID-19. why? is that not a real thing? [link] [comments]  |
| Posted: 09 Aug 2021 07:14 PM PDT I've heard countless people repeat to me that foot fetishes are "caused" by the proximity of a part of the brain that registers sexual behavior/arousal to one that registers feet, and if you google "foot fetish and brain" practically every result is some pop-science type description of this. It feels like the real answer would be a lot more nuanced, but I'm not seeing much pushback. [link] [comments]  |
| What happens mechanically when I activate “eco-mode” when driving my car? How about “sport mode” ? Posted: 09 Aug 2021 12:56 PM PDT I've heard "it firms up the suspension" for sport mode, does that just mean the shocks get more compressed or something? Huge thanks to any replies! [link] [comments]  |
| Posted: 09 Aug 2021 04:49 PM PDT I'd like to understand whether some percentage of people got infected with Polio despite being vaccinated and if so at what rate? I am assuming that there maybe was some but it was very low; probably because take-up of the vaccine was relatively high so less contact with infected people - but ready to be corrected [link] [comments]  |
| What causes gas flow exiting from a tube to become sonic upon exit into a large vacuum cavity? Posted: 09 Aug 2021 02:56 PM PDT I was reading a paper where the authors assert that any flow (including subsonic flow) from a tube even of constant cross-section will become sonic upon being released into a large vacuum cavity:
But why is this necessarily the case? If there are gas particles simply moving at some (subsonic) velocity in the tube, wouldn't they simply continue drifting at their instantaneous velocity as they exit the tube and enter the vacuum? What causes them to speed up to the sound speed and/or for the sound speed to decrease? Any explanations on why/how the flow becomes sonic would be appreciated since I seem to not quite understand the authors' arguments nor the physical mechanism(s) at play at the interface with the vacuum. I was under the impression that the gas will stream out at some angle based upon the collisions of the gas particles with the tube and other gas particles. Perhaps the gas density will decrease as it enters the vacuum and expands in the cavity causing the collision frequency to decrease. This would render a kinetic treatment more applicable, but I wasn't suspecting any sonic flow. It appears I am missing a fundamental insight here and clarity (through physical equations and/or intuitive explanations) would be appreciated. [link] [comments]  |
| What muscles are in charge of fingers when pressing on objects? Posted: 09 Aug 2021 12:19 PM PDT What muscles are in charge of fingers when pressing on objects? Example: If you were to press your index finger on a wall, what muscles are providing the strength for your finger to press on the wall? [link] [comments]  |
| Does the human eye's depth of field change with iris dilation? Posted: 09 Aug 2021 10:39 AM PDT In photography there's a metric called the F-stop that describes how wide the aperture of a lens is, and the narrower the F-stop, the wider the depth of field is (meaning more of a photo will be in focus). Is the same thing true of the human eye? Is more of a person's visual field in focus in brighter light when the iris is narrow (in photography terms, "stopped down") to restrict light coming in? [link] [comments]  |
| What effect does the pH of water have on radish seed germination? Posted: 09 Aug 2021 01:02 PM PDT |
| Why doesn't rain fall put of a cloud all at once? Posted: 09 Aug 2021 06:27 AM PDT Whether rain falls out of a cloud or stays in it is determined by how much water content can be in the area before the air is saturated, right? So why doesn't a bunch of water fall out right after that saturation point is reached? Are there any conditions that could result in a literal wave falling from a cloud? [link] [comments]  |
| Posted: 08 Aug 2021 10:16 PM PDT |
| Do space telescopes get damaged by radiation? Posted: 08 Aug 2021 11:45 PM PDT All the cameras that have been a while on the ISS have those white spots or dead pixels where the radiation has damaged the sensor So does this also happen to space telescopes and what do they do about it? I can imagine that if Hubble would behave like other cameras there would be a ton of dead pixels by now [link] [comments]  |
| How come when you pull/tear a muscle you don’t get stronger? Posted: 09 Aug 2021 05:31 AM PDT But when you break down your muscles to a smaller degree via lifting weights they adapt and grow stronger? [link] [comments]  |
| Do bears instinctively know that bees guard tasty honey? Posted: 08 Aug 2021 06:18 PM PDT Or is it learned behavior? If I take a bear cub and raise it on my own with no exposure from adult bears, then place several foodstuffs in front of it as well as a nearby beehive, will the bear know to dig through the hive for honey? [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