What is the fastest beats per minute we can hear before it sounds like one continuous note? |
- What is the fastest beats per minute we can hear before it sounds like one continuous note?
- How can DNA tests determine relation in cases where there are identical twins involved, or when incest was involved?
- Is energy expenditure directly correlated to heart rate? Could you use just heart rate and relative constants like age, sex, weight, and height to measure energy expenditure?
- What makes a video player better than others, why do twitter videos sometimes not load while I can always watch youtube videos?
- What is a U-statistic?
- If the split brain theory is right could something like schizophrenia, depression and other forms of mental illness be a miscommunication or disagreement between the two personalities in our head?
- How does an interventional radiologist 'steer'?
- 'Biology' Are the barnacles that grow on whales harmful?
- If your balance is determined by fluid in your inner ear, how does one "practice" their balance?
- Why does thyroid medication have a longer/shorter half life in people with hypo/hyper thyroidism?
- Why do we sometimes hear the same repeating sound as alternating between a higher and lower note? (tick tock of a clock) (click clack of high heels)
- How does natural selection work with traits whose absence still allows for survival?
- How many squares must a Rubik's cube have so that the number of cube permutations is greater than or equal to Graham's number? Would this cube fit inside the observable universe?
- What is the real future of solar power? Is it as possible as the media is making it seem, or are the disadvantages too great?
- What is the limiting factor on how fast I can tap my finger on my desk?
- What is the difference between the trigonometric functions and the hyperbolic functions? Also, why is it that the inverse hyperbolic functions can be expressed as logarithmic functions but not the trigonometric ones?
- Can our organs respond to external stimuli?
- Does intelligence in human population exhibit a bell curve?
- Why is tactile reflex faster than auditory reflex?
- Does mysostatin have a benefit or purpose beyond checking muscle growth, and are there similar proteins in other types of tissue?
- Is it possible to convert kinetic energy into light?
- Before a celestial body becomes tidally locked, will it reach equilibrium point based on the shapes of the objects, could it ever reverse direction to reach equilibrium?
- How does electromagnetic radiation interact with mirrors to cause it to reflect?
| What is the fastest beats per minute we can hear before it sounds like one continuous note? Posted: 18 Nov 2016 04:19 PM PST |
| Posted: 18 Nov 2016 08:29 PM PST For example, my grandmother had an identical twin. Would their daughters be genetically half sisters? Would a DNA test reveal my second cousin's relationship to me correctly, or would it say we were first cousins or something in between? Also, could someone determine whether or not incest occurred with DNA of one person? How would this affect DNA readings? For example, I know of someone who sent in their DNA to a large database to find relatives. His father is unknown, but it seems he is only getting matches on his known mother's side. Could the DNA sample tell you if his father was actually his mother's father (without having samples from any other family members)? [link] [comments]  |
| Posted: 19 Nov 2016 07:20 AM PST Given that the amount of glucose burned is dependent on the amount of oxygen available which is dependent on the rate of blood flow, is energy expenditure directly correlated to heart rate? Given that, can energy expenditure be measured using just heart rate and a few constants irrespective of the type of activity? Would other factors, like variability in haem levels in the blood (and therefore oxygen delivered per rate of blood flow) or anaerobic respiration throw it off? [link] [comments]  |
| Posted: 19 Nov 2016 06:34 AM PST |
| Posted: 18 Nov 2016 09:10 PM PST Can you explain it intuitively to me, not mathematically? I tried asking on ELIfive, r/answers and r/statistics, but got nothing to answer my question. [link] [comments]  |
| Posted: 19 Nov 2016 02:18 AM PST |
| How does an interventional radiologist 'steer'? Posted: 18 Nov 2016 08:58 PM PST When a doctor is performing an endovascular procedure, how do they steer? Do they just move forward until they wind up where they need to be? [link] [comments]  |
| 'Biology' Are the barnacles that grow on whales harmful? Posted: 18 Nov 2016 12:56 PM PST |
| If your balance is determined by fluid in your inner ear, how does one "practice" their balance? Posted: 18 Nov 2016 05:35 PM PST |
| Why does thyroid medication have a longer/shorter half life in people with hypo/hyper thyroidism? Posted: 19 Nov 2016 05:43 AM PST And does this explanation also apply to other medications? [link] [comments]  |
| Posted: 18 Nov 2016 09:57 PM PST |
| How does natural selection work with traits whose absence still allows for survival? Posted: 18 Nov 2016 03:50 PM PST From what I understand, natural selection happens when organisms with some traits reproduce, while those without the traits don't reproduce. How does this work for traits that cause non-essential changes (for example humans losing hair)? In the example I mentioned, does that mean that every human that didn't lose hair just died without reproducing? Sorry I could only come up with that one example. I had a plethora of them earlier, but now I can't seem to remember any. Note: I tried posting this earlier, but it was removed. I contacted a moderator, and they suggested I resubmit it. [link] [comments]  |
| Posted: 18 Nov 2016 02:23 PM PST I recently discovered the unfathomably large Graham's number and (like most people) was completely blown away by how big it is! We know that even the simple 3x3x3 rubik's cube has 43 quintillion possible states, and this number explodes with each step up in cube size. My questions is this, is it possible to calculate how large a cube would have to be to have a number of permutations equal to Graham's number, and would this cube be able to fit in the observable universe? [link] [comments]  |
| Posted: 18 Nov 2016 12:02 PM PST A buddy of mine has made several claims about why solar energy isn't viable at all in the long term. He's a huge proponent of nuclear energy - which I don't disagree with him on, but his adamant denial of the viability of solar has me torn. His claims include:
A lot of the sources of information on the internet that I've been exposed to have been solar hype machines. I live in Florida where I think solar is exceptionally viable, but he's started to make me doubt its impact going into the future. What are your thoughts on solar energy and its future? [link] [comments]  |
| What is the limiting factor on how fast I can tap my finger on my desk? Posted: 19 Nov 2016 02:38 AM PST When I try to tap my finger on my desk as fast as possible I can't go any faster than 4 or 5 beats per second. Is it my muscles, my brain or something else that won't let me change the direction of movement any faster? [link] [comments]  |
| Posted: 18 Nov 2016 02:31 PM PST |
| Can our organs respond to external stimuli? Posted: 19 Nov 2016 01:22 AM PST If we cut open our body and expose our internal organs (just an example), in a condition where we're not given anaesthetic and our minds are fully awake, if something touches our organs can we feel them? [link] [comments]  |
| Does intelligence in human population exhibit a bell curve? Posted: 18 Nov 2016 01:48 PM PST People joke how people are dumb and that 50% of people are dumber than that, but considering how intelligence is a polygenic trait, I would have thought it would follow a similar pattern of distribution as other traits with continous inheritence. Mostly, I would like to know aside from the IQ test, what other reliable methods of measuring intelligence have been developed and have they been trialled widely, and what did they find? edit: population should be populations [link] [comments]  |
| Why is tactile reflex faster than auditory reflex? Posted: 18 Nov 2016 02:40 PM PST To clarify, why do we consciously (for example during a reaction test) react faster to touch than to sound? [link] [comments]  |
| Posted: 18 Nov 2016 02:20 PM PST |
| Is it possible to convert kinetic energy into light? Posted: 18 Nov 2016 12:59 PM PST |
| Posted: 18 Nov 2016 09:17 AM PST I am thinking of a ball at the end of a wound string. Gravity acts upon the ball causing it to spin and release the tension in the string, however, it will likely spin beyond the equilibrium and have to reverse spin to some extent. [link] [comments]  |
| How does electromagnetic radiation interact with mirrors to cause it to reflect? Posted: 18 Nov 2016 09:35 AM PST So, I know that light reflects off of some surfaces, mirrors being particularly good at it. However I don't know exactly why it does so. I'm of an understanding that it is to do with the electrons being in the same energy states as those wavelengths of light that it reflects but I don't really get the whole picture. If someone could shed some ahem light on the subject that would be fantastic. Thank you. [link] [comments]  |
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