How much adrenaline is released by our adrenal glands in an "adrenaline rush", compared to the dose administered in an Epi-Pen? |
- How much adrenaline is released by our adrenal glands in an "adrenaline rush", compared to the dose administered in an Epi-Pen?
- AskScience AMA Series: I study the mutualistic relationship between alligators and wading birds in the Everglades. AMA!
- Can you explain me quantum decoherence in simple language?
- Do we have any concepts for the psychological differences between a human raised to learn language and a human raised without language? If so, what are they?
- If we don’t observe good dental hygiene we tend to lose our teeth. How did early man cope without toothbrushes, toothpaste, floss, etc?
- What happens to your blood sugar levels when you wake up, and is it different if you wake up on your own as opposed to being woken up by an alarm clock?
- With telescopes and technology advancing. Do you think it is possible for us to take photos of exoplanets?
- Where can you find a source of true unpolarized light in the universe?
- What element determines the colours of our eyes?
- [Physics/Computing] Why can't we make silicon transistors smaller than 10 nm?
- How much energy does a blackhole radiate through Hawking radiation?
- Is the Tibialis the same thing as the Peroneus?
- Do wind turbines need any starting propulsion to get them going?
- Can you express an irrational number, e.g. pi, as as a product which doesn't have that number as a factor?
- Is it possible for me to make a universal root function? Not sure of a use for this but I am sure it would be nice to have.
- In a void, where does the energy of the sound goes ?
- Why Coriolis effect also affects East/West movement?
- Can a woman get pregnant from two different men at the same time?
| Posted: 17 Jul 2019 06:02 PM PDT I am interested in comparing (a) the ability of our adrenal glands to release and adrenaline/epinephrine bolus when needed, to (b) the amount of adrenaline in an Epi-Pen (which is 0.3 mg for an adult). Beyond this, I am trying to figure out why our adrenal glands do not produce enough adrenaline during an anaphylactic episode. Is it because (a) adrenal glands cannot produce enough adrenaline, (b) their adrenaline stores have been depleted, (c) for some reason, they are not stimulated to release adrenaline during anaphylaxis, or (d) they release too much noradrenaline along with adrenaline. [link] [comments]  |
| Posted: 18 Jul 2019 04:00 AM PDT Hi everyone! My name is Wray Gabel, I'm a Masters student at the University of Florida advised by Dr. Peter Frederick. A little about my research--my thesis explores the mutualistic relationship between nesting wading birds and the American Alligator. Basically, wading birds get protection from nest predators (like racoons) and alligators get food from discarded nestlings. I'm looking to 1) better understand what alligators might be getting out of the deal and 2) how this mutualism might be changing wading bird colony location preferences when alligators are not around. I conducted my field work for part 1) in the Everglades and used existing wading bird colony location data from North and South Carolina for part 2). A little about me--I actually grew up wanting to become a paleontologist, which was really what ignited my passion for field work and biology, but ultimately I found currently existing animals to be more fun than rocks. I got my undergrad degree in Biology from Skidmore College, and after graduating I worked with seabirds in Japan (Hokkaido University), wading birds/waterbirds in San Francisco (San Francisco Bay Bird Observatory), and seabirds in Maine (Audubon's Project Puffin). I'm mainly interested in the conservation of coastal and wetland ecosystems and hope to do something with wading bird, waterbird, and/or seabird monitoring in my future career as a wildlife biologist. I also minored in Studio Art while at Skidmore and plan to create an illustrated version of my thesis, and I'll be attending an Art-Science residency this fall! I've always been passionate about bridging the (artificial) divide between the two disciplines. In what little spare time I have I enjoy hiking, traveling, playing video games/board games/rpgs, listening to/collecting music, and doing crossword puzzles! I am doing this as part of an AMA series with the UF/IFAS Department of Wildlife Ecology and Conservation. I'll be on at noon (ET, 16 UT), AMA! [link] [comments]  |
| Can you explain me quantum decoherence in simple language? Posted: 18 Jul 2019 07:43 AM PDT |
| Posted: 18 Jul 2019 12:05 AM PDT I apologize in advance if this question has been asked before. Modern day life is a bit hard to imagine without language. We read and talk with one another on a daily basis, and social interaction has become pretty deeply rooted in our psyche. That said, I'd like to pose a situation that removes language from a human's life, yet keeps social interaction. What sorts of behaviors would be exhibited by a human who does not learn a human language, but who does have interaction with other humans? Do we have any way of knowing? [link] [comments]  |
| Posted: 17 Jul 2019 05:23 PM PDT How did early man cope without all the things we associate with good dental hygiene today? Did they continually lose their teeth and just deal with it? Or did they also observe rudimentary dental hygiene practices to slow tooth loss? Also, isn't tooth loss due to decay a kind of evolutionary flaw? [link] [comments]  |
| Posted: 17 Jul 2019 07:35 PM PDT Assuming you are an average healthy person: What happens to your blood sugar levels when you first wake up and is there a significant difference in you blood sugar levels if you wake up on your own vs. being woken up by an alarm clock? [link] [comments]  |
| Posted: 18 Jul 2019 07:51 AM PDT |
| Where can you find a source of true unpolarized light in the universe? Posted: 17 Jul 2019 04:38 PM PDT In our tiny lightbulbs, the emitted light either passes through air or glass, both dielectrics, and in gigantic stars, the light from the core passes through thick layers of gas, and then through the atmosphere of the Earth to reach our eyes. I cannot think of a situation where you find true unpolarized light in the universe. The best I can come up with is in maybe an ideal vacuum chamber where you then have something emit blackbody radiation. [link] [comments]  |
| What element determines the colours of our eyes? Posted: 17 Jul 2019 04:09 PM PDT |
| [Physics/Computing] Why can't we make silicon transistors smaller than 10 nm? Posted: 17 Jul 2019 01:30 PM PDT I don't entirely remember why but I think it was due to some sort of electron leakage, where something related to quantum physics took effect and the electrons would start teleporting from one side of the gate to the other side without the gate opening. If possible could you include a source supporting your answer [link] [comments]  |
| How much energy does a blackhole radiate through Hawking radiation? Posted: 17 Jul 2019 11:51 AM PDT Is it EXACTLY equal to the total mass-energy it consumed during its creation and lifetime? [link] [comments]  |
| Is the Tibialis the same thing as the Peroneus? Posted: 17 Jul 2019 09:09 PM PDT |
| Do wind turbines need any starting propulsion to get them going? Posted: 17 Jul 2019 09:15 AM PDT Do they have any motors that aren't for turning the wind into energy but only for starting it's spin? Would it depend on the design of the turbine? [link] [comments]  |
| Posted: 17 Jul 2019 03:58 PM PDT |
| Posted: 17 Jul 2019 07:05 PM PDT Most math libraries only have sqrt(num) I want root(rt, num) not sure of a use for this but it seams like it would be nice to have btw im only in middle school so i havent been exposed to any more complex math that i didnt research myself [link] [comments]  |
| In a void, where does the energy of the sound goes ? Posted: 17 Jul 2019 10:19 AM PDT From what I understand, sound is produced by a pressure difference between 2 mediums, and propagates through matter (and therefore, not in a void). Now, I imagine since sound displaces matter less and less as it travels, it has some kind of energy dissipating progressively, right ? What happens to that initial energy when I try to produce sound in a void ? Does it just not exist at any point, or does it diffuse in its source instead of escaping it ? Also, what happens when a sound wave reaches a void ? Is it "reflected" in its original medium or does the matter right next to this void gets displaced farther/longer before coming back to its initial position (or maybe it is projected in the void instead ?) ? Sorry for the long post and formatting [link] [comments]  |
| Why Coriolis effect also affects East/West movement? Posted: 17 Jul 2019 10:11 AM PDT I get the intuition of apparent deflection with North/South movements: the difference of linear velocity and whatnot. I just don't get how it could act in movement parallel to Equator. [link] [comments]  |
| Can a woman get pregnant from two different men at the same time? Posted: 17 Jul 2019 07:45 AM PDT For example, say she has no protection and two men finish inside of her at roughly the same time. Can two eggs be fertilized by sperms from different men? Does this cause any health risks for the mother or the children? [link] [comments]  |
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