What might be different if the earths rotation was in the other direction? |
- What might be different if the earths rotation was in the other direction?
- Does the salt content in saltwater elicit a higher pain response from saltwater marine life?
- Cats & Dogs have many nipples. What creatures have the most nipples. Why?
- Could matter/light escape the event horizon of a relatively tiny black hole under influence of another?
- Would running with or against the rotation of an artificial gravity ring in space significantly change the effect it had on you?
- A number line is necessary to contain all real numbers. A complex plane is necessary to contain all complex numbers. Is there any kind of number that needs a three dimensional space to contain?
- Is it possible for any type of magnetism to actually repel a ferromagnetic material?
- Given the fact that braces can work on adult jaws, are other bones in the body able to be morphed or translated out of position given exterior reinforcement?
- Why are humans more afraid of spiders and insects than, say, wild animals?
- If we can't determine the orbit of an electron and only have a "probability plot" of where it is likely to be when we try and look, does this not just highlight our inability to track properly?
- Progesterone Cream (USP) is rubbed into skin to be absorbed into the bloodstream in an hour. With this understanding of skin permeability, is it known if chemicals/bleach used in hair dying could also get into the bloodstream, or react with skin in some way to be absorbed into the body?
- [Physics] Why are there so many different units for radiation/radioactivity?
- Why don't lungs seem to ever get tired ?
- Does Hydrogen (relative atomic mass of 1) weigh (approximately) the same as 1/12th of a Carbon-12 atom?
- Do the points where a curve function and its derivative intersect hold some significance?
- Seems like we often cure diseases in mice as a stepping stone to curing them in people. So, are these therapies made available to veterinarians, so that actual mice (pet mice) can see some benefit from these breakthroughs?
- Why are ferrofluids so black?
- For what reason do we not see any Agarwood farms in the US? If it has to do with climate could you produce such a climate indoors with hydroponics seeing how the product of tree is so valuable?
- Model on how chain mails propagate? How many % of people need to forward them?
- When an object becomes statically charged, are the molecules in the object ionized?
- Is the temperature difference between the north and south pole purely because of the axis of revolution the earth has relative to the sun?
- Is the human brain wired to naturally perceive only a certain number of orders of magnitude?
- Why are differentiation and integration opposites?
| What might be different if the earths rotation was in the other direction? Posted: 10 Sep 2016 05:50 PM PDT |
| Does the salt content in saltwater elicit a higher pain response from saltwater marine life? Posted: 10 Sep 2016 05:30 PM PDT I mean, they would probably know no difference, but would the pain response in say, a shark, be reduced if the water immediately surrounding the wound were freshwater? Or has marine life adapted to it? Thanks! [link] [comments]  |
| Cats & Dogs have many nipples. What creatures have the most nipples. Why? Posted: 10 Sep 2016 11:14 AM PDT |
| Posted: 11 Sep 2016 06:39 AM PDT Say point A in space is just beyond the event horizon of a small to medium black hole, but also further beyond the event horizon of a second super-massive black hole. This second one will, if I recall correctly, have an event horizon many many times bigger. If for some theorectical reason these black holes do not merge instantly, could there be a brief window of time where matter that is already beyond the event horizon of the small black hole get dragged back into the massive one? I am not very informed about the details surrounding black holes so my idea could be completely wrong and/or law of physics breaking. Thanks! [link] [comments]  |
| Posted: 11 Sep 2016 06:36 AM PDT If this was the case could you completely negate the affect of gravity by sprinting against the rotation resulting in the situation where you were floating in place as the ring was rotating without you. [link] [comments]  |
| Posted: 10 Sep 2016 06:29 PM PDT |
| Is it possible for any type of magnetism to actually repel a ferromagnetic material? Posted: 10 Sep 2016 05:28 PM PDT |
| Posted: 10 Sep 2016 10:16 PM PDT So I was just watching a gif of a timelapse of sagging teeth being morphed by braces into a regular jaw, and I was wondering if other (stronger?) bones could be affected the same way, and the ways they could be moved along. I have some examples that I was specifically thinking about. 1) If a constant pressure is applied to the sides of a person's hands, would the bones of the hand eventually be pushed inwards permanently? If so, would the bones of the hand break before this happens? If that's the case, why does the portion of the skull attached to the teeth not break from braces? 2) Let's suppose a put a (very painful) "pusher" between the bones of my wrist that just exerts a constant outwards force on the horizontal plane relative to my hand. Would my 7" wrists become 8" wrists? Or is the length of the forearm bone a problem? Also, assuming I constantly consumed vitamin k2, d, c, and calcium, would the bone still suffer, or would it be perfectly fine? 3) I don't like the length of my legs. If I attach two ropes with a pulling force to each end of my fibula and tibia, would the bones simply break, or would it be stretched? Or, are these two bones simply too big for this to work? I know that especially in regards to the 3rd question, there was a medieval torture contraption that worked by pulling on the limbs. However, if I remember correctly, that machine caused pain by ripping out some of the bones from their respective joints, and eventually tearing the skin and muscle. [link] [comments]  |
| Why are humans more afraid of spiders and insects than, say, wild animals? Posted: 10 Sep 2016 09:04 PM PDT The reaction to seeing them is visceral, as opposed to seeing animals that can actually kill me, like a lion or a bear. They're two different types of fears, but most people seem way more afraid of spiders & insects. [link] [comments]  |
| Posted: 11 Sep 2016 07:04 AM PDT |
| Posted: 10 Sep 2016 09:16 PM PDT I recently learned that many women rub Bio-identical (USP) Progesterone cream into their skin, to get it quickly into the bloodstream, blowing my mind, as I thought skin was way more impenetrable than that. Now, all the various strong chemicals people (especially women in pursuit of beauty) put on skin seem scary. Which ones can be absorbed into the body? [link] [comments]  |
| [Physics] Why are there so many different units for radiation/radioactivity? Posted: 10 Sep 2016 11:22 AM PDT It seems like, between greys, roentgens, Sieverts, rads, curies, it's a confusing mess. Is it just a matter of different international standards? [link] [comments]  |
| Why don't lungs seem to ever get tired ? Posted: 10 Sep 2016 10:41 PM PDT |
| Posted: 11 Sep 2016 02:50 AM PDT So relative atomic mass is relative to 1/12th of a carbon-12 atom, so does that mean hydrogen approximately weighs the same as 1/12th of carbon 12? [link] [comments]  |
| Do the points where a curve function and its derivative intersect hold some significance? Posted: 11 Sep 2016 06:25 AM PDT We're doing calculus in school now. And I was wondering whether the points where y = y' are used in science, engineering or some field? Are they called something? I was wondering when I graphed a cube function and its derivative like this. [link] [comments]  |
| Posted: 10 Sep 2016 09:50 PM PDT |
| Posted: 10 Sep 2016 04:46 PM PDT Is light absorption a property of ferrofluids, and if so, why so? [link] [comments]  |
| Posted: 10 Sep 2016 09:00 PM PDT I hear the tree is fast growing as it takes 4 years to flower. If it's possible to use hydroponics you could perhaps tweak things so that you almost always produce the best grade of product. https://en.wikipedia.org/wiki/Agarwood First-grade agarwood is one of the most expensive natural raw materials in the world,[citation needed] with 2010 prices for superior pure material as high as US$100,000/kg, although in practice adulteration of the wood and oil is common, allowing for prices as low as US$100/kg.[4] A whole range of qualities and products are on the market, varying in quality with geographical location, botanical species, the age of the specific tree, cultural deposition and the section of the tree where the piece of agarwood stems from.[5] Oud oil is distilled from agarwood, and fetches high prices depending on the oil's purity. The current global market for agarwood is estimated to be in the range of US$6 – 8 billion and is growing rapidly Most paper now comes from either recycled material such as wood chips,or from wood that's sourced from tree farms. So why not grow Agarwood instead of pine trees for paper? http://i.imgur.com/Pdf2p07.jpg a cord of wood weighs 1814.37 kg, so if you could produce the top grade material in a hyrdroponic farm you would make up to 181,400,000 dollars off a cord of agarwood. [link] [comments]  |
| Model on how chain mails propagate? How many % of people need to forward them? Posted: 11 Sep 2016 04:29 AM PDT Hey, so I've read an article in a newspaper about a whatsapp chain mail telling people that a certain contact is a hacker or some BS like that. I've not seen such a message in years and I'm quite surprised that they still exist, but I guess my contacts aren't people who would forward this. This made me thinking: what % of people need to forward those messages for them to be "alive"? I've tried to find research about this but I couldn't find anything. I'm quite sure it's very similar to how diseases and vaccines work, with a 100% working vaccine for thsoe who don't send the message and 100% chance of getting the disease if not vaccinated. So could I use those models? The only question would be how many people are those who send the mails interact with. [link] [comments]  |
| When an object becomes statically charged, are the molecules in the object ionized? Posted: 11 Sep 2016 12:27 AM PDT For example when wool and nylon are rubbed together both become charged. Let's say nylon is negatively charged. Do the nylon molecules become ionized? [link] [comments]  |
| Posted: 11 Sep 2016 12:26 AM PDT |
| Is the human brain wired to naturally perceive only a certain number of orders of magnitude? Posted: 10 Sep 2016 06:40 PM PDT Example 1 Consider this example (people who don't know math can skip to the next one, don't worry): You want to plot this function: y=(floor(x))2. Now say you pull up your favorite program and you put the equation in and the program plots the thing. So here it is on your screen, you set it to only show the first quadrant - say x<15, y<200 - and there you have it: 16 discernible steps. Now you wanna see more steps, so you edit your axis range and you go x<20, y<400: 21 discernible steps. Now I go higher to x<30, y<900 and things start to get a little weird: I KNOW in this particular case that there are 31 steps in the picture and I can discern them, but the difference between the 1st and 2nd step is getting minimal. Let's ramp things up to x<150, now anything before 5 is a straight line. At x<300, everything before 20 is a straight line. At x<1000 it's 50. And so on and so forth... Basically if I want to see bigger things, I'm gonna have to scale things up, but that way I won't be able to see little things anymore. Now, of course, this example could be easily dismissed as a problem of my screen's resolution. If I had a bigger screen with a higher resolution I could probably plot 300 fully discernible steps. But of course this stops working when you wanna see the 10,000th step, then things would start to get blurry again at the bottom. I suspect this to be an inherent property of human perception: do we have a fixed scale that sets what is the biggest size and the smallest size in a series of objects we can perceive at the same time? Next example: Example 2 (EDIT: I found this video that is basically the same thing I'm describing below but with stars instead of cubes, I highly suggest watching it) Imagine yourself on a flat, infinitely wide and infinitely long piece of land. Somewhere a bit ahead of you is a series of cubes placed one next to the other in a row that runs from left to right. Each cube is twice the size of the one to its left. You wanna see the most cubes you can so you start backing away from the cubes. This way, bigger cubes enter your field of view on the right and smaller cubes enter your view from the left. Pretty soon you start to find that if you keep backing away you'll definitely see bigger cubes, but you'll also lose perception of the smaller cubes on the left. So you stop backing away and you just move sideways to the right to see bigger cubes, but as you go to the right, you find that the big cubes are just getting too big for your field of view, you HAVE to step back to see them entirely. Also, same thing with the small cubes on the left. If you're too far back and you wanna see smaller and smaller cubes, you'll have to step in and move to the left, but this is gonna make you lose sight of the bigger cubes. My question is: is there an intrinsic limitation in my brain to not only see, but picture something, then something twice as big, then something 10 times as big and something 100 times as big without losing sight (or perception) of the original thing I was picturing? Also, I would be surprised to find out I was the first one to THINK of this problem, so I would suppose it might be something quite basic which I still can't find stuff about because I'm probably putting in all the wrong keywords. Could you help me out on this too? What's the field of study which cares about this kinda thing? [link] [comments]  |
| Why are differentiation and integration opposites? Posted: 10 Sep 2016 11:26 PM PDT Graphically, derivatives are the slopes of tangent lines, and integrals are the area underneath curves (at least in 2-D). Why are these opposites of each other? Why do they "undo" each other? [link] [comments]  |
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