Symmetry of a snowflake through an electron microscope shows both sharp and round edges. Do we understand the causal factors as to why this occurs? |
- Symmetry of a snowflake through an electron microscope shows both sharp and round edges. Do we understand the causal factors as to why this occurs?
- How accurate must the time of launch be for spacecraft on a slingshot path?
- Discussion: MinuteEarth's newest YouTube video on reindeer Meat!
- I often hear about psychological experiments in the past, such as Milligrams, Stanford Prison that could not be done or even replicated today because of informed consent rules. Although obviously informed consent rules are more humane, do they harm psychology as a science?
- Parrots and other bird mimics can seemingly imitate any sound. Are there any sounds that would be physically impossible for a bird to make?
- How did chemists know the specific molecular makeup of chemicals, as well as the specific molecular changes taking place in the reactions they worked with in the 19th and early 20th centuries?
- Does frequent exposure to the smell of food or drinks affect our sense of taste?
- (Astronomy) If the sun will eventually turn into a red dwarf and expand, will the orbits of the planets change?
- How do houseplants 'know' it's winter, given that I have lights and heating on most of the time?
- Why does a piece of cloth act as such a good filter against odors and aromas and gases? Wouldn't the airborn molecules easily pass through the pores?
- Say a man have a 600,000 km long stick. What would happen if the man give a push to the stick other end of the stick? Will the motion immediately arrive at the other end of the stick?
- How are packing problems solved? Since they are a sort of optimization problem, can optimal solutions be found by hand using calculus?
- The reflex arc misses out the brain, the spinal cord 'deals' with the response by sending a signal back to the effector. By that logic, can quadriplegic people respond to a stimulus, say for example a needle stabbed into their hand, if aforementioned quadriplegic had a clean break at their neck?
- Is it true that all of the Iron in the Unieverse is produced only via nuclear fusion in stars?
- Did complex eyes evolve once or multiple times from simple eyes or vice versa? Or did they both evolve from a simpler type of eye?
- Is there a ATP/ADP Recycle Limit?
- Why is the Western side of the US so hot and arid compared to the East?
- We have organizations that look for intelligent life, but are there any major projects with the aim to make our presence known?
| Posted: 19 Dec 2016 04:50 PM PST |
| How accurate must the time of launch be for spacecraft on a slingshot path? Posted: 20 Dec 2016 05:08 AM PST Since these missions rely on the position of planets in space, what kind of margin of error are we talking about for the time of launch? Would a few hours delay screw the whole thing up? [link] [comments]  |
| Discussion: MinuteEarth's newest YouTube video on reindeer Meat! Posted: 19 Dec 2016 09:09 AM PST Reindeer meat could've entered North American cuisine and culture, but our turn of the century efforts to develop a reindeer industry were stymied by nature, the beef lobby, and the Great Depression. Check out MinuteEarth's new video on the topic to learn more! We're joined in this thread by David (/u/goldenbergdavid) from MinuteEarth, as well as Alex Reich (/u/reichale). Alex has an MS in Natural Resources Science & Management from the University of Minnesota, and has spent time with reindeer herders in Scandinavia and Russia, with caribou hunters in Greenland and Canada, and with many a Rangifer-related paper on his computer. [link] [comments]  |
| Posted: 20 Dec 2016 04:47 AM PST I was thinking of jury studies, where there is a huge difference between "Do you sentence this man to death" and "Would you sentence this man to death". I discussed this with a psychologist friend who insisted that this is somehow compensated for, but I am skeptical and think perhaps he drank the kool-aid. How do you test whether or not ICBM crews are going to actually launch without actually putting them in that position? [link] [comments]  |
| Posted: 19 Dec 2016 04:45 PM PST |
| Posted: 19 Dec 2016 11:34 PM PST |
| Does frequent exposure to the smell of food or drinks affect our sense of taste? Posted: 19 Dec 2016 04:08 PM PST |
| Posted: 19 Dec 2016 03:28 PM PST |
| How do houseplants 'know' it's winter, given that I have lights and heating on most of the time? Posted: 19 Dec 2016 10:46 AM PST A lot of advice for house plants suggests watering them less over winter, because their growth is reduced. But how do they detect triggers such as shortening day length and lower temperatures in such an artificial environment? [link] [comments]  |
| Posted: 19 Dec 2016 11:20 PM PST |
| Posted: 20 Dec 2016 02:45 AM PST |
| Posted: 19 Dec 2016 04:56 PM PST I want to write a paper on packing for school. Let's say I have a square. This square is 9 units by 9 units for a total area of 81u2 . I have rectangles, each with an area of 10 u2 that I want to pack into the box. How do I go about maximizing the number of these rectangles I can fit into the box? I know that the answer is 8, but how could I arrive at this conclusion with calculus? Can I write out an optimal solution using rectangles of specific dimensions? Alternatively, if someone could suggest some sort of packing problem solution generator program (preferably with an image output to display the packing) I could examine that would also be nice! [link] [comments]  |
| Posted: 19 Dec 2016 04:20 PM PST |
| Is it true that all of the Iron in the Unieverse is produced only via nuclear fusion in stars? Posted: 20 Dec 2016 12:58 AM PST I've read this statement that every single atom Iron is produced in the stars (including the iron in our blood and body.) and was curious if it is true. [link] [comments]  |
| Posted: 19 Dec 2016 04:32 PM PST |
| Is there a ATP/ADP Recycle Limit? Posted: 19 Dec 2016 01:26 PM PST ATP becomes ADP after hydrolysis which in turn becomes ATP again through the oxidation of glucose. How many times can this cycle be repeated for one molecule before a new molecule must be created? Can this process be repeated indefinitely for one molecule? [link] [comments]  |
| Why is the Western side of the US so hot and arid compared to the East? Posted: 19 Dec 2016 04:12 PM PST |
| Posted: 19 Dec 2016 04:50 PM PST |
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