- Humans have a wide range of vision issues, and many require corrective lenses. How does the vision of different individuals in other species vary, and how do they handle having poor vision since corrective lenses are not an option?
- Can someone explain why Quantum Entanglement is "bizarre?" (What makes it different from macroscopic conserved systems?)
- What keeps the protons in the nucleus of an atom from flying apart due to their positive charge?
- How exactly do geologists know the number of supercontinents that have formed in the past?
- Does every substance have a melting point, even crystals?
- I dug my fingernail into coconut oil while in the dark, and it made a blue glow. Is there some sort of chemical reaction happening?
- I understand that Sine and Cosine are ratios describing the right-angled triangle, and can be represented on a unit circle. But how is the ratio "tan" represented on the unit circle? [More in description]
- How does the skull of different species grow into its particular shape?
- How Valid is the Theory of Geocentricism?
- [Chemistry] Why is it unlikely that symmetrical molecules can turn plane-polarized light?
- Could we further extend the complex plane to a third dimension? If so what would it represent.
- How do objects (or atoms) transfer their temperature to each other?
- During the Carboniferous Period, what percentage of the planet's land was covered in forests?
- Why is it more difficult to walk up an inclined treadmill compared to a level one, even though my height (and hence gravitational potential) doesn't actually increase?
- Can sugar directly cause diabetes?
- How can water be heavier than the respective elements that make it up?
- Why is it that South Carolina's lowcountry has a much higher risk of earthquakes than any other state east of the Appalachians?
- Why doesn't frequency affect current in the photoelectric effect?
- Why is cloning a human so much harder than cloning a sheep?
- Does losing blood via donation lower high blood pressure?
- Why is it that the inside of fresh water pipes that feed houses don't need regular cleaning?
- Does a caloric deficit result in long-term changes to the brain, such as loss of brain mass?
| Posted: 28 Mar 2016 08:36 AM PDT |
| Posted: 29 Mar 2016 01:35 AM PDT I am completely confused about why it should come as a surprise so I must misunderstand something about it. From what I understand, Quantum Entanglement is two particles that in some way originated such that the total conserved value of a property in a system is known but what is not know is the constituent contribution of each particle in that system. For example spin, we know two the total spin of two particles is zero but we don't know the individual spins of the particles. What I'm supposed to regard as "strange" is that measuring the spin on one of the particles supposedly deterministically causes the other particle to fall into the counter-spin - hence conserving the total spin in the system. I must be missing something because I don't see anything strange about this. If I have a pool ball floating in space and I hit with a total known kinetic energy at another pool ball floating in space, after collision, each poolball's kinetic energy will sum to the total kinetic energy in the original ball (assuming a perfect system with no heat generated from collision). If I then measure one of the pool balls, I know the kinetic energy of the other. Nobody thinks this is weird and nobody says the pool balls are "entangled." So, please, can someone tell me why this becomes weird on a quantum scale? [link] [comments]  |
| What keeps the protons in the nucleus of an atom from flying apart due to their positive charge? Posted: 29 Mar 2016 03:15 AM PDT Since neutrons do not have charge wouldn't each proton repel each other, a lot? [link] [comments]  |
| How exactly do geologists know the number of supercontinents that have formed in the past? Posted: 29 Mar 2016 02:42 AM PDT Is there hard evidence to support that supercontinents like Rodinia and Gondwana actually formed, and if there is, how do they estimate the time it took them to form/break up? I have began studying prehistoric life and I was just curious how they figure this shit out. [link] [comments]  |
| Does every substance have a melting point, even crystals? Posted: 28 Mar 2016 10:49 PM PDT |
| Posted: 28 Mar 2016 10:12 AM PDT To clarify...it was a brand new container of unrefined, virgin coconut oil. My finger nails are long and they are polished black. I dug my thumb nail in to scrape some oil out, pulling up so that the nail was used as a shovel. I was in an almost completely dark room when I did so, and upon scraping a blue glow would manifest around the tip of my nail. Any idea what is going on here? [link] [comments]  |
| Posted: 28 Mar 2016 03:06 PM PDT So I understand how Sin and Cosine work and entirely understand why it is represented on the unit circle as such. But what I can't seem to understand is how the tan is dependent on an angle or why it is represented as a tangent extending to the x-axis. Could someone please help me consciously understand this. It would be much help. Much thanks to the people who submit. This is helping a budding physicist! [link] [comments]  |
| How does the skull of different species grow into its particular shape? Posted: 28 Mar 2016 08:43 PM PDT Or more generally, what's the overall process of the body of different animals getting its shape, from overall shape to little details and how do genes influence those? How does the human skull for example get its right shape so reliably with only minor differences from individual to individual, compared to entirely different shape of a dog skull for example and how does this shape form starting with a few cells (after differentiation)? [link] [comments]  |
| How Valid is the Theory of Geocentricism? Posted: 28 Mar 2016 08:26 PM PDT Recently a large portion of my family watched some fairly convincing (to the layman) on Geocentricism. Now I'm someone who's always open to new ideas, no matter how extreme. However after doing some Googleing all really only come across articles saying that the entire thing is a joke and was disproven long ago. I'd like to have a proper discussion with family about this, and I not being an expert on the subject, so any and all help would be greatly appreciated. If anyone could help me find some good articles for proofs of either the theory or for the earth actually revolving around the sun, I would be very grateful. [link] [comments]  |
| [Chemistry] Why is it unlikely that symmetrical molecules can turn plane-polarized light? Posted: 28 Mar 2016 08:27 AM PDT |
| Could we further extend the complex plane to a third dimension? If so what would it represent. Posted: 28 Mar 2016 02:12 PM PDT We extended the number line to the complex plane. a + bi where i represents the root of -1. Is there a number system like so a + bi + ck where k represents something that can't be represented in the form a + bi? [link] [comments]  |
| How do objects (or atoms) transfer their temperature to each other? Posted: 28 Mar 2016 11:49 AM PDT |
| During the Carboniferous Period, what percentage of the planet's land was covered in forests? Posted: 28 Mar 2016 10:29 AM PDT So I've been doing a bit of armchair research on the Carboniferous period, but can only find that trees did not decay like they do today, and that the global oxygen levels were 35% compared to 20.9% today, a 14.1% decrease. I would assume this was because the planet had more vegetation, seeing as today forests cover 31% of the world's land, would that mean the planet's forest coverage was 35.37%? Seeing as 14.1% of 31% is 4.37%. I'm sure there are other factors to oxygen percentage in the atmosphere, such as herbivores and other respiratory animals processing O2 and producing CO2. The 35.37% is probably a bit lower than the actual number due to these factors as well as other factors such as volcanic activity, sea levels, etc. [link] [comments]  |
| Posted: 28 Mar 2016 07:30 AM PDT |
| Can sugar directly cause diabetes? Posted: 28 Mar 2016 08:26 AM PDT Can it? im confused. I know it can at least indirectly cause type 2 diabetes, by causing weight gain. But if your a skinny bitch who eats a lot of sugar, do you got to fear dem diabetes? [link] [comments]  |
| How can water be heavier than the respective elements that make it up? Posted: 28 Mar 2016 08:21 AM PDT So I understand basically that electrolysis of water splits water into its base elements of Hydrogen and Oxygen, but how can combining them create something that is heavier than the sum of it's parts? How can both Hydrogen and Oxygen be lighter than water if they make up water? Edit; Wow, this has been really eye opening to how little I understand chemistry. Thanks everyone that replied and I'll definitely be trying to learn more. [link] [comments]  |
| Posted: 28 Mar 2016 06:09 PM PDT I was looking at this map and noticed South Carolina has a higher risk of earthquakes than any other Eastern state. By a lot. Now I live here, in the middle of that big scary purple blob, and haven't really felt any feelable earthquakes. The only ones are slight ones that at most sound like thunder or a car crash, not a giant building-shattering earthquake. [link] [comments]  |
| Why doesn't frequency affect current in the photoelectric effect? Posted: 28 Mar 2016 10:40 AM PDT Hello, I am trying to understand how the current works in the photoelectric effect. I understand that increasing light intensity increases the current. Presumably, more photons hitting the metal at a faster rate would cause faster electron discharge and move the current faster. However, I have read that increasing the frequency or kinetic energy of photons has no effect on the current. I don't really understand this part. If electrons are discharged with greater energy, doesn't that mean they move faster and the current should be faster? Lastly, I don't really understand amplitude. I know that amplitude is the measure of the top or bottom half of a wave and that this is a measure of how much energy a wave carries, but I don't really understand how the amplitude factors in to the photoelectric effect.. Why would greater amplitude increase the current? Lastly, does the charged metal eventually totally lose its charge or become positive as the light shines on it? Thanks for any help you can offer! [link] [comments]  |
| Why is cloning a human so much harder than cloning a sheep? Posted: 28 Mar 2016 06:09 AM PDT We cloned a sheep decades ago. And now China thinks they can finally clone a human. [link] [comments]  |
| Does losing blood via donation lower high blood pressure? Posted: 28 Mar 2016 08:00 AM PDT |
| Why is it that the inside of fresh water pipes that feed houses don't need regular cleaning? Posted: 28 Mar 2016 06:25 AM PDT |
| Does a caloric deficit result in long-term changes to the brain, such as loss of brain mass? Posted: 28 Mar 2016 06:49 AM PDT Given that the brain uses a significant portion of our consumed calories, does maintaining a calorie deficit result in any significant change in the brain, or is it protected enough as a vital organ? [link] [comments]  |
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