Updates to AskScience Flair Policy |
- Updates to AskScience Flair Policy
- In diagrams where massive objects bend spacetime, what is depicted on the hight axis?
- How does your body produce keratin and what can you do to control the amount it produces?
- How do scientists know that the red shift means the universe is expansing and it doesnt mean that other stars are moving away from us through empty space?
- Would it be feasible to shoot trash and radioactive waste into the sun or into space? What would the pro´s and cons be?
- In what ways does dark matter interact with other dark matter?
- How does quantum indeterminism affect macroscopic events?
- What constitutes as "bend in spacetime"?
- Where does body heat come from?
- How is new genetic information created?
- How much of the sky is being searched for incoming asteroids?
- In the double slit experiment, why is coincidence counting needed?
- Because temperature affects the speed of sound, how slow could the cold bring down the speed of sound?
- It's possible to explain the gravitational force with geometry, as the curvature of spacetime. Is it possible to explain other forces (like electromagnetic force) with geometry too?
- Does microwaving thermoplastics (Polycaprolactone) affect their performance or give off fumes?
- Can we make quantum weapons?
- How can frogs survive being frozen during winter ?
- When doing Liquid Chromatography of vitamins, should you use a separate column (normal or reversed phase) for fat soluble vitamins than the one you use for water soluble vitamins?
- Why does Euler's number appear in physics?
- Sun has an Oort cloud that extends to possibly 1ly away. Can supermassive stars like Betelgeuse have Oort clouds and how far away could they possibly extend from their parent star?
- Will the forces that is expanding the universe ever get strong enough to expand the space between atoms atoms?
- Why don't contractors use intermediate hoppers and pumps to transport fresh concrete to the top of skyscrapers?
- Why does the nucleus of an atom increase in mass when it is broken apart?
- What were the earliest recorded cases of PTSD as a result of Warfare, and how were they treated?
| Updates to AskScience Flair Policy Posted: 31 Mar 2016 09:41 PM PDT Hello /r/AskScience! As you know, we have opted to represent different scientific disciplines using our colored flair system. Well, after much internal discussion, we have opted to make a new change to how we are representing these disciplines. Science has evolved to the point where is now an unprecedented level of overlap between fields. We want /r/AskScience to better represent this reality, something that can be lacking on the internet. To show how much we are all truly multidisciplinary experts, we are changing our flair system to a multicolored spectrum. The quality of the answers you receive is always our top concern, and we want to ensure you know what kind of answer you are getting. Happy sciencing! [link] [comments]  |
| In diagrams where massive objects bend spacetime, what is depicted on the hight axis? Posted: 31 Mar 2016 06:18 PM PDT Take for example this picture: https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Spacetime_lattice_analogy.svg/1260px-Spacetime_lattice_analogy.svg.png What is on the hight axis (z-axis) How should one interpret such a graph? Secondly, in animations like this: https://www.youtube.com/watch?v=_GhkWuIDzpc, spacetime seems to bend "The other way"? what implications does that have? [link] [comments]  |
| How does your body produce keratin and what can you do to control the amount it produces? Posted: 31 Mar 2016 06:51 PM PDT |
| Posted: 31 Mar 2016 01:43 PM PDT How is the red shift of stars any diffferent than the red shift i would get if I launched a rocket away from earth wirh a bright light. Both indicate they are moving away from us? [link] [comments]  |
| Posted: 31 Mar 2016 11:48 AM PDT I was just thinking about it and i can´t seem to make negative sides to it, and it seems like a good way to rid ourselves of radioactive waste more easily than to store it in mountains. [link] [comments]  |
| In what ways does dark matter interact with other dark matter? Posted: 31 Mar 2016 05:34 PM PDT |
| How does quantum indeterminism affect macroscopic events? Posted: 31 Mar 2016 09:42 PM PDT Can quantum indeterminant events snowball/butterfly effect into changes at larger scales, or does it not affect anything beyond the movement of particles? Do all states of affairs observable to us with the naked eye still obtain out of necessity as in classical determinism? [link] [comments]  |
| What constitutes as "bend in spacetime"? Posted: 31 Mar 2016 04:27 PM PDT What exactly are the factors contributing to this phrase? [link] [comments]  |
| Where does body heat come from? Posted: 31 Mar 2016 03:42 PM PDT I understand that blood is warm and the cardiovascular system distributes blood/oxygen/heat throughout the body, but how does the blood get hot in the first place? [link] [comments]  |
| How is new genetic information created? Posted: 31 Mar 2016 05:44 PM PDT I have a basic understanding of evolution and am curious about how new genetic information is created/introduced. From what I understand, imperfect replication of RNA plays a big part but I would love to understand this better. [link] [comments]  |
| How much of the sky is being searched for incoming asteroids? Posted: 31 Mar 2016 02:07 PM PDT Have we searched a certain radius so we know nothing will hit us in say, the next week, month, or year? Thanks! [link] [comments]  |
| In the double slit experiment, why is coincidence counting needed? Posted: 31 Mar 2016 05:00 PM PDT I know there are many different setups of this experiment. I'm referring to this one here: http://grad.physics.sunysb.edu/~amarch/ While I understand the overall experiment, I'm not sure what the coincidence counting is needed for. I've read elsewhere on the web that it's used to distinguish the entangled photons from stray light and background noise. However, if it's only used for that, wouldn't that in theory allow FTL communication, if we were somehow able to get rid of the noise in a different way? [link] [comments]  |
| Posted: 31 Mar 2016 06:14 PM PDT I assume it's not possible for sound to not move at all. I'm not exactly sure how this works other than temperature affecting energy levels. [link] [comments]  |
| Posted: 01 Apr 2016 04:57 AM PDT |
| Does microwaving thermoplastics (Polycaprolactone) affect their performance or give off fumes? Posted: 31 Mar 2016 04:16 PM PDT Microwaving is the easiest way to distribute heat on a thicker piece of Polycaprolactone but I'm not sure of health risks or material damage. It can be synthesized with microwave radiation but I'm not sure whether further exposure to the radiation would weaken it similar to how resins get embrittled from UV exposure after the initial curing. Also, healthwise, PCL is labelled non-toxic, bio-degradable, etc. I'm not sure if that takes other scenarios like microwaving into account. [link] [comments]  |
| Posted: 31 Mar 2016 02:35 PM PDT There are really two parts to my question. The first relates to the history of the Manhattan Project. I knew it was a huge (multi?) national effort and the goal was to make a weapon that would end WWII. I thought it was started in the early 40's but just read that it actually began in 1939. It never occurred to me that nuclear physics was still in its infancy and how much was still completely unknown or at least unsettled. The neutron had just been discovered 7 years earlier, and the theory of the neutron was only 4 years old?!? amazing! How after just a few short years did we suspect that making a weapon was practical or even possible? Now roll the calendar forward 75+ years, is anyone asking if its possible or practical to make weapons based on quantum phenomena? [link] [comments]  |
| How can frogs survive being frozen during winter ? Posted: 31 Mar 2016 07:38 AM PDT from http://www.scientificamerican.com/article/how-do-frogs-survive-wint/ "Partially frozen frog will stop breathing, and its heart will stop beating. It will appear quite dead. But when the hibernaculum warms up above freezing, the frog's frozen portions will thaw, and its heart and lungs resume activity" How ? How can the heart start beating again automatically after being frozen for days/months ? [link] [comments]  |
| Posted: 31 Mar 2016 02:54 PM PDT are the differences in structure and polarity of fat and water soluble vitamins such that I should use a normal phase (Nonpolar mobile phase, polar stationary phase) or a reversed phase (polar mobile phase, nonpolar stationary phase) when trying to separate them using LC? [link] [comments]  |
| Why does Euler's number appear in physics? Posted: 31 Mar 2016 11:52 AM PDT I understand that Euler's number is an infinite sum of 1/n!, but what I don't understand is why things like the decay and growth of nuclear radiation can be perfectly modeled by this number. I guess you can have this discussion with pi, but to me it is more obvious why pi comes up in physics, whenever the circumference of a circle is divided by its diameter, it's the nature of a circle, which come up often. But why do things in nature work by this infinite sum of reciprocal factorials? [link] [comments]  |
| Posted: 31 Mar 2016 01:52 PM PDT |
| Posted: 31 Mar 2016 10:25 AM PDT |
| Posted: 31 Mar 2016 06:07 AM PDT I'm a structural engineer, and in my field there's always a big hullabaloo when a contractor breaks the record for highest concrete pump on a skyscraper. Here's an example of what I'm talking about from back when they built the Burj Dubai. I've always wondered, why doesn't the contractor just set up a system of hoppers and pumps at intermittent heights, maybe 20 stories or something? That way each pump could pump at a reasonable pressure for a reasonable height and none of this custom designing would be necessary. [link] [comments]  |
| Why does the nucleus of an atom increase in mass when it is broken apart? Posted: 31 Mar 2016 11:14 AM PDT Why do the nucleons (protons and neutrons) of an atom weigh more when separated then when combined into a nucleus? [link] [comments]  |
| What were the earliest recorded cases of PTSD as a result of Warfare, and how were they treated? Posted: 31 Mar 2016 08:22 AM PDT Clarification: "PTSD" here meaning any documented psychological trauma that would fall under our definition of the term. [link] [comments]  |
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