Why do joints ache so much when you get the cold/flu? |
- Why do joints ache so much when you get the cold/flu?
- What is the relationship between the rate of change of a function and differentiation?
- If the energy of photons is continuous, and electron's energy levels around an atom are discreet, then how can you ever have a photon that has the exact energy to be absorbed by an electron?
- Why do "Y" chromosomes only have 3 chromatids?
- Can an unvaried diet cause the human body to learn to digest a certain (type of) food faster?
- How does coding physically work? How does a computer, made up of inanimate parts, understand what to do based on a made up language?
- Why do large metal beams or trusses sometimes have tiny connections/joints?
- Are there problems in computer science that no algorithm can solve for all inputs?
- Does Supersymmetry include antimatter?
- Why do some photos of the heavens show stars radiating light in a 'cross' shape instead of evenly in a circle?
- Why don’t everyday movements cause sub-concussive impacts?
- Does our mother tongue affect our face features in any way?
- Why is the waste produced in a thorium fuel cycle need storage for only 300 years instead of thousands of years for uranium fuel cycle, even though U233 from Th232 had mostly similar fission products as U235?
- [Physics] Has there been significant research relating to anti-matter weaponry?
- How does convection of heat work in space?
- Can non ear neurons detect sounds?
- What are fingerprints made of ?
- Why is this year's influenza outbreak so much deadlier than previous years?
- Is it possible for gravity waves to have a particle nature? If so, what would this particle be like? If not, what sets gravitational waves apart from light and matter, which have particle wave duality?
- Does makeup, even without SPF, give any protection from the sun?
- How well can we detect meteors?
| Why do joints ache so much when you get the cold/flu? Posted: 17 Jan 2018 07:47 PM PST |
| What is the relationship between the rate of change of a function and differentiation? Posted: 17 Jan 2018 12:42 PM PST |
| Posted: 17 Jan 2018 01:38 PM PST |
| Why do "Y" chromosomes only have 3 chromatids? Posted: 17 Jan 2018 07:08 PM PST I was in Biology class when I asked this question, but the teacher wouldn't answer it, she only said we would learn about it in the next unit. So if someone could answer this that would be nice. [link] [comments]  |
| Can an unvaried diet cause the human body to learn to digest a certain (type of) food faster? Posted: 17 Jan 2018 08:56 AM PST I know that the glycemic index ranks carbohydrate-comprised foods according to their effect on glucose levels. But are these rankings always accurate throughout an individual's life? Would, given sufficient repetition, the body adapt to process a certain food (e.g. Pizza) faster? [link] [comments]  |
| Posted: 18 Jan 2018 04:23 AM PST |
| Why do large metal beams or trusses sometimes have tiny connections/joints? Posted: 17 Jan 2018 02:06 PM PST https://i.pinimg.com/originals/ab/7a/bb/ab7abba8c6801e0a398f43f25ea2e198.jpg Like in this truss example, sometimes it looks like the connections are inadequate. Is it because they are only loaded axially or are they actually adequate? What about cases of beams that are not loaded axially like below: http://www.portaking.com/wp-content/uploads/2016/04/beams-3f.jpg Is this just poor design? I am new to structures and just trying to understand. [link] [comments]  |
| Are there problems in computer science that no algorithm can solve for all inputs? Posted: 18 Jan 2018 07:29 AM PST I know (vaguely) of NP complete problems that can not be solved by an algorithm in polynomial time, but are there problems that we can't write an algorithm to solve for all inputs? Intuitively I'm inclined to believe that there must be problems so complex you could never make a sufficiently sophisticated algorithm to solve them, but I can't find anything online saying that's necessarily true. Is my intuition correct? Or, can any problem, no matter the complexity and number of inputs, be solved given enough time? [link] [comments]  |
| Does Supersymmetry include antimatter? Posted: 17 Jan 2018 02:09 PM PST So would we in theory have an anti-selectron and an anti-squark? [link] [comments]  |
| Posted: 18 Jan 2018 03:35 AM PST |
| Why don’t everyday movements cause sub-concussive impacts? Posted: 17 Jan 2018 09:35 PM PST I'm aware that the brain's motion is dampened by the cerebrospinal fluid it floats in and by its tethering to the spinal cord and the meninges, but I have trouble seeing how this is sufficient to protect the brain from subtle damage just short of a concussion. I tend to visualize a brain-sized egg (with strange holes through the middle for ventricles) in an egg-shaped capsule filled with water (or at least some fluid with the same viscosity) bouncing around as it's shaken. The brain as an egg isn't the best analogy for a number of reasons, but it seems to me that motions like head banging, shaking rapidly, turning the head quickly to the side and back, etc. would crack this egg, or at least push it against the walls of its egg-skull with some nonzero force, especially considering that there is little distance between the brain/egg and the skull, and that the fluid isn't very thick. My question therefore encompasses a few questions several of which likely do not have or can not have full answers: 1. Is our brain really moving a lot less than intuition might suggest? 2. If so, how do we know? Have simulations of this been performed? 3. If not, and the brain does move within our skull as much as such analogies might suggest, does this actually cause any real damage?
Also, as an aside, the argument that evolution has developed mechanisms that prevent significant subconcussive damage (even if we don't fully understand them) doesn't seem too convincing either, because evolution only requires that we survive long enough to reproduce, not so much that we perform the kinds of higher order thinking tasks we do today, let alone well into our old age when consequent neurodegenerative disorders might manifest. (I hate to add this because it seems rude, but please don't just link to previous instances of this question on Reddit, as I assure you I wouldn't post here had I found information that satisfied me. I'm primarily looking for a fairly in depth overview of the state of research into these questions, and perhaps a more rigorous intuitive understanding of the physics of the brain's motion in everyday movement.) Edit: excuse the shitty formatting and text blocks, I posted this on mobile [link] [comments]  |
| Does our mother tongue affect our face features in any way? Posted: 18 Jan 2018 01:06 AM PST |
| Posted: 17 Jan 2018 09:20 AM PST |
| [Physics] Has there been significant research relating to anti-matter weaponry? Posted: 17 Jan 2018 04:01 PM PST As I understand it, the energy release from matter/anti-matter collisions are much greater than fusion weaponry. Obviously these weapons serve no practical purpose here on earth, but I could see them perhaps being useful for defending against incoming space objects. Is this an active area of research, and is it at all feasible? [link] [comments]  |
| How does convection of heat work in space? Posted: 17 Jan 2018 03:25 PM PST I suppose I should add in a dense atmosphere of some sort like a space station in 0 g [link] [comments]  |
| Can non ear neurons detect sounds? Posted: 17 Jan 2018 12:09 PM PST So i was studying this and i saw that neurons can be activated by light\sounds\temperature So (title) like the ones on our hands or eyes? P. S. Is this the right flair? [link] [comments]  |
| What are fingerprints made of ? Posted: 18 Jan 2018 05:29 AM PST |
| Why is this year's influenza outbreak so much deadlier than previous years? Posted: 17 Jan 2018 10:57 AM PST |
| Posted: 17 Jan 2018 02:16 PM PST |
| Does makeup, even without SPF, give any protection from the sun? Posted: 17 Jan 2018 02:26 PM PST If the makeup is physically obscuring your skin, would it have a filtering effect on the account of light that reaches the skin? [link] [comments]  |
| How well can we detect meteors? Posted: 17 Jan 2018 09:13 AM PST From the news today there was a meteor in detroit that caused an earthquake. My question is did the scientists or whoever monitors for things in space notice it? And if not why were scientists not able to detect it? Only asking because I saw nothing in the news or on reddit of a meteor so reading it today was quite sudden. (I asked this before but I think it was removed by an automod, apologys if I am breaking rules.) [link] [comments]  |
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