My six year old daughter asked after clapping her hands, "How does the sound come out?" |
- My six year old daughter asked after clapping her hands, "How does the sound come out?"
- How viable is the idea of using artificial wombs to help save endangered species?
- If you dissolve salt into water is it still H2O?
- Whether grapes, Cacti or geraniums, cloning plants through cuttings has widely contributed to spreading desirable plants through time. What are the longest such cloned lineages and what can they teach us?
- Is there any correlation between education and mental health?
- How did early tetrapodomorphs breathe air?
- Study on Navy Special Operations candidates founds the "PEAS" scale was predictive of graduating the training. Where can I find the PEAS scale and has any other research corroborated or invalidated the study?
- How does UTR effect and regulate synthesis of RNA if it is untranslated? (As well as some other questions)
- How accurate are total Earth population estimates and how do they determine them?
- If I were to connect a spectrum analyzer to one of my Ethernet ports and have my computer send out a large number of all unique packets, could I figure out the protocols method of generating electrical signals simply based on the differences in the signal generated by each packet?
- How does a change in Ploidy occur in evolution, and still produce fertile offspring?
- How do you weight a black hole ?
- Is the depth of field in (human) eyesight affected by pupil size?
- Eating can raise dopamine, but how exactly?
- What would the magic numbers be if the sign of the spin-orbit interaction strength was reversed?
- What makes an element an element? (I dont mean the simple explanation of the # of protons) more in text section.
- Does the photoelectric effect only work on metallic solids?
- Where do the protons in the stroma of a chloroplast come from?
- Why are car starters powered by as low voltage as 12V?
- How does "flow" relates to this guy's definition of "fun"? (11 min video in comment)
| My six year old daughter asked after clapping her hands, "How does the sound come out?" Posted: 07 Jan 2017 07:40 AM PST |
| How viable is the idea of using artificial wombs to help save endangered species? Posted: 07 Jan 2017 11:02 AM PST I feel like this is a potential solution especially when getting animals to breed is difficult(pandas for example). The expense and scientific limitations could be an issue but I'm not sure. I would love to hear input on this [link] [comments]  |
| If you dissolve salt into water is it still H2O? Posted: 07 Jan 2017 01:08 PM PST So.. its winter time and there has been a lot of salt applied to my driveway.. and I got to thinking. If you are dissolving a salt into water is the resulting solution still water? Or is it a new compound. H2O + NaCl = ? I'm mainly asking because we all know that adding salt changes some of waters properties such as the point at which is freezes.. so is it different? [link] [comments]  |
| Posted: 07 Jan 2017 09:19 AM PST Just to be clear - the present discussion only aims artificially propagated clones. Naturally occurring clones, such as megagroups of genetically similar Aspen, are another topic. Does the number of times new cuttings are taken have any effect downline? How long have reliably documented lines been maintained? [link] [comments]  |
| Is there any correlation between education and mental health? Posted: 08 Jan 2017 06:17 AM PST Is there any correlation or causation between the level of education or occupation of a person to diseases sucj as alzheimers, dementia or other mental health problems? [link] [comments]  |
| How did early tetrapodomorphs breathe air? Posted: 08 Jan 2017 06:48 AM PST From my understanding; Some Sarcopterygians were capable of breathing air via their spiracular system, and some gulp air into vascularised swim bladders. When early tetrapodomorphs such as Tiktaalik and Icthyostega started popping onto land for brief periods, did they breathe air primarily through their spiracular system, or did they further develop their swim bladders? And where did the lung stem from? Was it a highly developed form of swim bladder or did it arise from the spiracular chamber? I've been searching around but I can't seem to find a solid answer. If anyone could point out lapses in my thinking or provide an answer I'd be very grateful! [link] [comments]  |
| Posted: 07 Jan 2017 09:54 AM PST Link to study: http://www.dtic.mil/dtic/tr/fulltext/u2/a200684.pdf The "Physical Estimation and Attraction Scale" (PEAS) comes up with a ton of hits on scholarly archives yet I've been unable to find an actual damn copy of the scale. Where should I be looking? Also, curious as to your knowledge of similar studies. [link] [comments]  |
| Posted: 08 Jan 2017 04:59 AM PST 1) During the transcription of mRNA , how does the 5'-UTR and 3'-UTR of the mRNA regulate production of RNA and protein? Surely if they're untranslated, they will have no effect on RNA regulation I'm really confused about the this, my notes all point to the fact that UTR regulates RNA synthesis but I have no idea how or why. Some other questions that are more of a 'Revise it as fact' thing but i'm still curious about 2) For a eukaryotic class II mRNA coding gene, why can the enhancer be in front or behind the promoter sequence? Wouldn't TF and cofactors need to be bound before the promoter so polymerase can bind at the correct sequence? 3) For transcription to mRNA, is the introns spliced out of the genetic sequence solely by snRNA? [link] [comments]  |
| How accurate are total Earth population estimates and how do they determine them? Posted: 08 Jan 2017 03:56 AM PST |
| Posted: 07 Jan 2017 09:10 PM PST |
| How does a change in Ploidy occur in evolution, and still produce fertile offspring? Posted: 08 Jan 2017 05:13 AM PST Hello all!
Just been reading and thinking about the different ploidy that occurs in different species and curious to how this affects evolution. Mostly how can this naturally occur and stick. For example oat plants are Hexiploid (I think) how did their evolution decide that 'yes, this is a good organisation of my chromosomes for evolution, I'll stop at 6'.
Hope this makes sense as a question, Thanks for any responses or discussion :) [link] [comments]  |
| How do you weight a black hole ? Posted: 08 Jan 2017 01:55 AM PST The black hole at the centre of the Sombrero Galaxy weighs in at 1 billion times that of the Sun, one of the most massive black holes ever measured how is it possible to measure the weight of a black hole ? [link] [comments]  |
| Is the depth of field in (human) eyesight affected by pupil size? Posted: 07 Jan 2017 04:44 PM PST Hi, I'm a biology student that has recently been getting into photography. I've learned that in photography a smaller aperture size means a larger depth of field. A smaller aperture size also means less peripheral view. My question is, does this work the same in (human) eyes? When we are in a brightly lit environment, do we have a larger depth of field (= a larger area in focus) and less peripheral view than when we are in a dark environment? I understand that the physics behind this phenomenon are the same with any kind of lens, but is it noticeable / measurable in our eyesight? [link] [comments]  |
| Eating can raise dopamine, but how exactly? Posted: 07 Jan 2017 10:49 AM PST First of all english is not my first language, so pardon me for any grammar mistakes. Now my question is whether dopamine levels raise while eating food or after, as our body realizes that there's food in the stomach? or how does this process work? I would appreciate any answers about this exact topic, because I couldn't find much information on it. [link] [comments]  |
| What would the magic numbers be if the sign of the spin-orbit interaction strength was reversed? Posted: 07 Jan 2017 08:16 AM PST So talking about the nuclear shell model. I feel the title explains all you need to know. I am not too familiar with the equations around the magic numbers so would like to know a little background on that too! [link] [comments]  |
| Posted: 07 Jan 2017 01:04 PM PST Why are there variations of the number protons in the universe? What makes hydrogen have 1 proton and oxygen 8? Why is everything not simply hydrogen? [link] [comments]  |
| Does the photoelectric effect only work on metallic solids? Posted: 07 Jan 2017 01:46 PM PST What are the practical limitations of the photoelectric effect. Does it work on liquids, gases, or plasma? Does crystal structure have any effect? Are metallic solids the only efficient way too utilize it for energy production? [link] [comments]  |
| Where do the protons in the stroma of a chloroplast come from? Posted: 07 Jan 2017 08:11 AM PST In the light dependent reaction of photosynthesis, the protons in the thylakoids (used to generate ATP) come from the photolysis of water and from protons being proton pumped from the stroma into the thylakoids. Where do this protons in the stroma originally come from? [link] [comments]  |
| Why are car starters powered by as low voltage as 12V? Posted: 07 Jan 2017 10:00 AM PST I was wondering and could not find a definitive answer anywhere. Why are the car starters powered by as little as 12V? Would it not be more practical to use higher voltage so that the current drawn would not be so huge (like 400-500 amps for a typical diesel engine)? It also seems to me that it would be cheaper, easier and more practical to use higher voltage and lower peak current battery as well as thinner cables connecting the starter to a battery. I read somewhere about the 42V system but it was not much detailed and did not explain why this idea was abandoned. [link] [comments]  |
| How does "flow" relates to this guy's definition of "fun"? (11 min video in comment) Posted: 07 Jan 2017 09:48 AM PST This video was posted on /r/gamedesign, and I mentioned that the speaker's definition of "fun" shared some similarities with the concept of "flow" in psychology (per my shaky understanding). What does an actual psychologist have to say about that? And if you also have some input about "fun" in general, it would definitely be welcomed! [link] [comments]  |
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