How do particle accelerators isolate certain particles if particles are unavoidably everywhere? Aren't there many unaccounted for particles in the way of observation? |
- How do particle accelerators isolate certain particles if particles are unavoidably everywhere? Aren't there many unaccounted for particles in the way of observation?
- Bird Flu, Swine flu exist and has been past to humans. How come we never have canine or feline flu, despite our close contact to those animals?
- How do the Voyager probes measure the particle density of space?
- In binomial nomenclature, where a species is named after a person, is pronunciation westernized, or is the western name Latinized?
- Why does a density populated country like India has so few deaths/million (83) due to covid-19?
- Why do people find muscles attractive and fat unattractive? Are there any inherent causes for it or is this all purely based on social trends.
- Why are lab rats typically albinos?
- Is inbreeding not an issue for insects?
- Where did bedbugs live in the wild before beds were invented?
- Is it more likely to get infected by someone, once the symptoms appear?
- Would any force (regardless of magnitude) applied to an object which is in a state of static equilibrium, cause the object to move?
- Does the volume of gas in a scuba cylinder change over the course of a dive?
- Is warm-bloodedness and cold-bloodedness a spectrum with varying degrees of ability to self warm, or is it a fairly well established binary? Are there edge cases?
- Why is COVID-19 not known as bat flu?
| Posted: 20 Oct 2020 06:18 AM PDT From my understanding, one of the many things particle accelerators are used for is making two or more particles collide at a high speed. How can these two particles be isolated, and then properly aligned for a collision without other particles getting in the way? And if scientists want to collide particular particles, how do they physically transfer the desired particle into the accelerator? [link] [comments]  |
| Posted: 19 Oct 2020 07:45 AM PDT Yes I know the post says "past" when it should say "passed." I can't edit the post. As we are all well aware of how autocomplete works, I would expect the spelling police to calm down. Apparently though, people love pointing it out as I keep getting notifications. The mods keep removing those posts, which I suppose is kind of them. So yes, captain obviouses, it's a misspelling. [link] [comments]  |
| How do the Voyager probes measure the particle density of space? Posted: 20 Oct 2020 05:55 AM PDT I ran across this pop-sci article which says that both Voyager probes have detected slight increases in particle density of space after leaving the heliopause. Assuming that's actually correct, I'm curious what instruments are used to take these measurements, and how those sensors work. It sounds awfully impressive to have the level of sensitivity described for machines as old and surely weathered as the probes are by now. [link] [comments]  |
| Posted: 19 Oct 2020 05:50 PM PDT I'm a virology professor at a medical school, though frequently lecture on other agents, some with species named after a person. My question is on pronunciation of Latinized species named after a person, eg Trypanosoma evansi or Coccidioides posadasii. Are the western pronunciations of the names maintained (eg "Evans-i" "Posadas-e-i"), or is it more like "E-vans-I" or "po-sa-das-e-i?" Thanks for humoring me:) [link] [comments]  |
| Why does a density populated country like India has so few deaths/million (83) due to covid-19? Posted: 20 Oct 2020 07:28 AM PDT India's population density is huge and health services are not sufficient for its large population. Even then their mortality rate for coronavirus is very low as compared to developed countries like US and Spain. what are they doing right? Thanks [link] [comments]  |
| Posted: 20 Oct 2020 08:08 AM PDT There was a time when plump bodies were considered attractive or was that just because they were a sign of wealth and people weren't actually neruo-physiologically attracted to them? [link] [comments]  |
| Why are lab rats typically albinos? Posted: 19 Oct 2020 03:47 PM PDT This may be a silly question but I'm not a geneticist, and I'm curious why animals used as test subjects in media - particularly mice, rats, rabbits, etc. - are almost always depicted as albinos. [link] [comments]  |
| Is inbreeding not an issue for insects? Posted: 20 Oct 2020 08:47 AM PDT It seems like very, very few insects can result in an explosive infestation (roaches, ants, bed bugs, etc.) Do insects not have the same negative effects from inbreeding that other animals do? [link] [comments]  |
| Where did bedbugs live in the wild before beds were invented? Posted: 19 Oct 2020 08:31 AM PDT |
| Is it more likely to get infected by someone, once the symptoms appear? Posted: 20 Oct 2020 06:56 AM PDT |
| Posted: 20 Oct 2020 01:41 AM PDT If an object with a high mass were in a state of static equilibrium and a small force were applied to it. Would the object remain in equilibrium or would it begin to move as per Newton's 1st law until slowed by external forces such as friction and air resistance. For example, if someone were to push against a bus, would the bus actually move regardless how small the force is or would the force need to be of a certain magnitude in order to move the object. My understanding is that If there is no net force on the object, any force would result in an unbalanced force and thus the object would move. [link] [comments]  |
| Does the volume of gas in a scuba cylinder change over the course of a dive? Posted: 19 Oct 2020 05:10 PM PDT I took a sidemount scuba course over the last two weekends. During the online learning portion, I got a question wrong on an exam that was based on this statement:
I believe this statement is incorrect. The volume of gas in a cylinder doesn't change over the course of a dive, so it can't be a goal to keep them close. The pressure changes, and the mass changes, but the volume remains constant. I emailed the company and they said it was correct.
Volume times pressure isn't volume. It's mass (pretty much). Is my understanding correct? Or, is it common to refer to pressure times container volume as the volume of the gas? [link] [comments]  |
| Posted: 19 Oct 2020 07:25 AM PDT |
| Why is COVID-19 not known as bat flu? Posted: 20 Oct 2020 03:11 AM PDT This might be a silly question, but swine flu came from pigs and avian flu came from birds... so why not? [link] [comments]  |
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