exercise increases growth hormone in the blood stream. If this is true, does that mean people who exercised more often in their formative years are taller? |
- exercise increases growth hormone in the blood stream. If this is true, does that mean people who exercised more often in their formative years are taller?
- If inflamation is a response of our immune system, why do we suppress it? Isn't it like telling our immune system to take it down a notch?
- How is anesthesia managed when an unconscious/comatose patient needs emergency surgery?
- Nothing can go faster than light. But light moves slower when not in a vacuum. Can can something travel faster than light when it's not in a vacuum?
- In the early stages of the Big Bang (Quark-lepton era) why was there slightly more matter than antimatter?
- Why does it take photons thousands of years to travel from the core of the Sun to the surface?
- Is there a limit to how far electricity can arc?
- Where do light or photons come from?
- Hello science! Why is it that nitrogen and oxygen don't separate in the atmosphere?
- How is text displayed on oscilloscopes ?
- Do scientists believe that a carbon tax would reduce the ecological impacts of climate change?
- Does the keratin in feathers react to Biuret? Why/Why not?
- How do we know what chemicals reside on other planets from just viewing them?
- Does Earth's atmosphere expand as a consequence of climate change?
- Do Noble Gases make chemical compounds like other elements do?
- How did the hallelujah mountains in china form?
- What does it mean to have a viscous blood?
- How do we know there was one super continent and what caused it to drift apart?
- Is real time-PCR more accurate than MALDI-TOF when analysing Microbiology samples?
- If the sun is constantly losing tons of mass, why do the orbits of the solar system remain relatively unchanged?
- Does salt change the surface tension of water?
- What is the difference between prenatal, in utero, and intrauterine development?
| Posted: 25 Jan 2019 05:43 AM PST I remember reading growth hormone production increases after exercise. Not sure if this influences anything other than recovery I guess. But do kids/teens who exercise during periods of growth end up taller than kids/teens who do not? [link] [comments]  |
| Posted: 24 Jan 2019 09:33 AM PST |
| How is anesthesia managed when an unconscious/comatose patient needs emergency surgery? Posted: 25 Jan 2019 06:26 AM PST How do anesthesiologists work when an unconscious patient is brought to the ER and needs emergency surgery? Do they give the same dose of the same molecules as if the patient were conscious, or is it too dangerous if the patient is already unresponsive? [link] [comments]  |
| Posted: 25 Jan 2019 07:17 AM PST Light in a vacuum moves at the fastest speed possible, which is sometimes referred to as c. Nothing can move as fast a c. But when light travels through a substance like air, glass, or water, it moves slightly slower than c. So is it possible for something to move faster through one of those substances than light can? And if so, what would it look like? Would it create a "visual boom" similar to a sonic boom when something goes faster than sound? [link] [comments]  |
| Posted: 25 Jan 2019 05:20 AM PST |
| Why does it take photons thousands of years to travel from the core of the Sun to the surface? Posted: 24 Jan 2019 10:20 PM PST Since it only takes a bit over 8 minutes for light to reach Earth from the Sun, I cannot comprehend why it takes such a long time to go from the core to the surface? Photons do not have a mass and they travel at the speed of light. Is it simply because of the size of the Sun? Edit: thank you all for providing such detailed replies. I do have a follow up question tho. Is the Random Walk also the reason for why Sun is white when seen in vacuum? [link] [comments]  |
| Is there a limit to how far electricity can arc? Posted: 25 Jan 2019 05:10 AM PST Apologies if this is the wrong flair. Not really sure where is most appropriate. I saw this was asked a few months ago but it only covered a sort of formula for distance. Does the distance it can arc have a cap or could theoretically we pump enough juice to jump a gap planets wide in an empty region of space? [link] [comments]  |
| Where do light or photons come from? Posted: 24 Jan 2019 11:07 PM PST It's a question that I never thought about, but I can't reason out where exactly it comes from. In a circuit, for instance, I know that there are particles like atoms in the filament, and there is the movement of electrons which moves in opposition to the electric charge. I know that light is a form of energy, so electric energy is turned into light energy (primarily), but I'm confused with where exactly do the photons come from? Where do these EM waves suddenly come from? There is no particle that acts as a stationary 'photon' in a circuit. [link] [comments]  |
| Hello science! Why is it that nitrogen and oxygen don't separate in the atmosphere? Posted: 25 Jan 2019 07:48 AM PST Liquids of different densities separate, liquids are fluids, air is a fluid. Hydrogen escapes the atmosphere rapidly, how come oxygen stays? It's less dense than nitrogen. I can imagine it's because of air movement and constant mixing. If so, why don't we all die when the weather is nice and quiet? [link] [comments]  |
| How is text displayed on oscilloscopes ? Posted: 25 Jan 2019 06:00 AM PST How is text (+ arrows and axes) displayed on oscilloscopes' screens? Are the vertical panels switching between multiple channels ? If that's the case then there should be dozens of channels.🤔 [link] [comments]  |
| Do scientists believe that a carbon tax would reduce the ecological impacts of climate change? Posted: 25 Jan 2019 03:53 AM PST I'm just about to start my economics undergrad, in the mean time before I start, I am trying to complete microeconomics and macroeconomics textbooks by Greg Mankiw, just to give you some idea of where I am with my knowledge (not very much as you can see). I haven't read much into the literature regarding climate change apart from a few articles (I plan to read more, it really interests me how economics could help to reduce the effects of climate change) and I just got finished reading about externalities and the solutions proposed by economists to deal with climate change (such as command and control regulation, carbon tax and tradable pollution permits). The other day I got called ecologically illiterate for believing that climate change (to be fair, I called them economically illiterate so it was probably warranted, I regret the remarks made but debate can get heated sometimes) could be solved by a simple tax proposed and agreed upon by every single economist in the world, even the most conservative ones. So my question is, would a carbon tax be sufficient enough to reduce the ecological impacts of climate change through incentivising firms and consumers to reduce their economic activities that omit co2 or are we too far gone? (I am giving this the Earth Sciences tag because I am more concerned with whether or not the co2 reduction from a carbon tax would be able to reduce or reverse the ecological impacts of climate change, not the efficiency of the tax. If I was concerned about that, I would of made a post on /r/AskEconomics.) [link] [comments]  |
| Does the keratin in feathers react to Biuret? Why/Why not? Posted: 25 Jan 2019 05:14 AM PST During a food test I failed to get a reaction between biuret and feathers, so I'm wondering if biuret reacts to keratin like it does to other proteins. [link] [comments]  |
| How do we know what chemicals reside on other planets from just viewing them? Posted: 25 Jan 2019 07:35 AM PST One sometimes hears that a planet may have rain that consists of diamonds, or that a planet does not have breathable air etc. made up of some poisonous gas.. how is this determined by astrophysicists? [link] [comments]  |
| Does Earth's atmosphere expand as a consequence of climate change? Posted: 25 Jan 2019 02:18 AM PST When climate change is discussed a increase in mean atmospheric temperature is often mentioned. As we know, gasses expand with increased temperature. Does this mean that the total volume of Earth's atmosphere also increases? [link] [comments]  |
| Do Noble Gases make chemical compounds like other elements do? Posted: 25 Jan 2019 04:11 AM PST The title says it.Do Noble Gases make chemical compounds like Hydrogen does with e.g. Oxygen (H2O,H2O2 etc.). Polar covalent bond is counting (e.g. He2 Fr2 Xe2). [link] [comments]  |
| How did the hallelujah mountains in china form? Posted: 24 Jan 2019 08:13 AM PST The mountains inspired the floating montains in the movie avatar. The actual montains are also beautiful. They're quartz-sandstone pillars according to the wiki. I don't understand how they formed though. Anyone know or have ideas? [link] [comments]  |
| What does it mean to have a viscous blood? Posted: 25 Jan 2019 04:28 AM PST |
| How do we know there was one super continent and what caused it to drift apart? Posted: 24 Jan 2019 06:11 PM PST |
| Is real time-PCR more accurate than MALDI-TOF when analysing Microbiology samples? Posted: 25 Jan 2019 06:11 AM PST From my research I have found contrasting evidence of the efficacy of MALDI-TOF whereas, most of the research I've done on PCR seems to be consistent. This leads me to believe that PCR would be more accurate but I'm am still unsure. Could anyone who has performed these tests give me their opinions on which technique is more accurate? [link] [comments]  |
| Posted: 24 Jan 2019 09:42 AM PST |
| Does salt change the surface tension of water? Posted: 24 Jan 2019 03:20 PM PST |
| What is the difference between prenatal, in utero, and intrauterine development? Posted: 25 Jan 2019 05:19 AM PST I suspect there is no difference but I may be wrong. I am writing a PhD proposal and I don't want to sound silly if I conflate them. [link] [comments]  |
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