Apéritifs and digestifs supposedly stimulate your appetite and aid in digestion, respectively. Is there any evidence/science behind this? |
- Apéritifs and digestifs supposedly stimulate your appetite and aid in digestion, respectively. Is there any evidence/science behind this?
- Did any animals other than Archosaurs develop additional skull openings?
- Can electrical breakdown, such as lightning or electric arc, be considered as quantum tunneling effect?
- Why can't we use smaller wavelengths of light instead of electron microscopes?
- [Engineering]How do advanced driver aids that use radar and/or laser to function (lane departure warning, adaptive cruise control, high beam assist, etc.) interfere with police band radar/laser if at all?
- Does a "simple" video have a smaller file size than a "busy" one?
- Structurally, how do the skeletal muscles of short and tall people differ? And what are the mechanisms that underly the difference in lean body mass between maximally-developed strength athletes of different statures?
- What causes the Dzhanibekov Effect?
- Is there a tiling of 3d space that has entropy proportional to surface area rather than volume?
- Why can't atoms in period 14 form quadruple bonds?
- Why does pottery not break down when you store water in it/use it with water?
- Does the intermediate axis theorem apply to Earth as well?
- Does an electron interact with itself?
- Are there any areas in the Western U.S. are similar to the Appalachian/Blue Ridge Forest ecoregion?
- Why is phloem alive and xylem dead? They both lack nuclei and organelles.
- Is there authentic evidence behind some scientists claims that civilization will collapse within 10-30 years due to rapid climate change?
| Posted: 25 Mar 2017 01:06 PM PDT I was reading this article on the difference between an apéritif and a digestif, and was wondering if there's any actual science behind the claims, or if it's more tied to other factors, like maybe culture? [link] [comments]  |
| Did any animals other than Archosaurs develop additional skull openings? Posted: 25 Mar 2017 11:51 AM PDT Most known amniotes are either synapsids, diapsids, or anapsids, (the latter two part of the sauropsids), which have either two, four, or no temporal fenestrae in the skull. However, the archosaurs evolved extra openings from their diapsid ancestors, the antorbital and mandibular fenestrae. Are the archosaurs the only known amniotes to have developed additional skull openings, or are there more? [link] [comments]  |
| Posted: 26 Mar 2017 02:48 AM PDT |
| Why can't we use smaller wavelengths of light instead of electron microscopes? Posted: 25 Mar 2017 09:17 PM PDT We have telescopes that can see ultraviolet light coming from the sun, and computers that can transform that info into visible colors. Yet we can't seem to use that same technology to bounce ultraviolet light off of specimen and get better resolution. Why is that? [link] [comments]  |
| Posted: 25 Mar 2017 08:32 PM PDT |
| Does a "simple" video have a smaller file size than a "busy" one? Posted: 25 Mar 2017 10:28 AM PDT If I'm watching a video that has very little activity on the screen (like a music video on YouTube that just has the album cover) will that have a similar file size to something that is a lot busier? I feel like the video codec should be able to recognize that there isn't anything happening and reduce file size accordingly. Thanks [link] [comments]  |
| Posted: 25 Mar 2017 04:45 PM PDT Taller strength athletes tend to carry a larger absolute amount of lean body mass than shorter athletes. It would seem intuitive to say that this is because of the relatively larger and heavier bone structure that they have. What, then, causes the disparity in size? Do taller people have more muscle fibers (and are their born with them, or do they proliferate during puberty)? Or is there a mechanism related to their enlarged bone structure that tells the body to allow for greater hypertrophy before the process is attenuated, when compared to a shorter person? I've also heard it said that taller men perform more work per unit of exercise because of the greater range of motion over which they must move the weight. It again seems intuitive to say that something inherent to their physiology enables this, but is it possible that the relationship is the converse, and that the extra work performed causes higher strength and size development in the long run? [link] [comments]  |
| What causes the Dzhanibekov Effect? Posted: 25 Mar 2017 01:09 PM PDT I saw this post and I was wondering how it works and why. [link] [comments]  |
| Is there a tiling of 3d space that has entropy proportional to surface area rather than volume? Posted: 25 Mar 2017 06:38 PM PDT (Note: I'm using some unicode characters to show the tiles. I hope it works in your browser.) Hello all, I've been reading about the holographic principle and I'm intrigued by the unintuitive idea that the entropy a volume of space is proportional to its surface area rather than its volume. In thinking about this, I've been thinking about a simple two dimensional tiling of the plane where the entropy is proportional to the perimiter rather than the area. If I start with a simple square tile that is divided along a diagonal into a white triangle and a black triangle: ◢ And allow any rotation: ◢ ◣ ◤ ◥ I can start tiling the plane with one tile of arbitrary rotation, say: ◤ Since I could have chosen any of 4 rotations, my tiling currently has 2 bits of entropy (as I understand it - I might be using the terminology incorrectly). If I constrain myself to matching the sides of tiles to be the same colour (black or white), I only have two choices when adding a tile adjacent to an existing tile. For example, to place a tile to the right of my 1st tile, I only have these two choices: ◤ ◥ or ◤ ◢ So now my tiling has 3 bits of entropy. If I continue on and add new tiles to the left, top and bottom, I have two choices for each and so have a tiling with 6 bits of entropy. For example: But now, if I want to fill in the corners to make a square of 9 tiles (3 tiles by 3 tiles, I am constrained by the existing tiles and so have no choice at all. The entropy remains 6 bits: ◢ ◣ ◥ ◥ ◤ ◢ ◢ ◣ ◥ Again, if I consider adding one tile to the right of the existing tiles, I have two choices and so 1 bit of entropy is added. Again if I do the same to the left, top and bottom, I add another 3 bits for a total of 10 bits. Interestingly, there are no more choices available when filling out the 25 tile square (for the same reason as with the 9 tile square). It's clear that the entropy of such a tiling for a square a side n (i.e., an n x n square), (where n is odd) is: entropy = 2n I think I'm right in saying that the same formula applies when n is even. Since the perimeter of the square is 4n. That makes the entropy proportional to the perimeter. I'd like to know if such a tiling (or tessellation?) exists in 3 dimensions that makes the entropy proportional to the surface area. It seems possible to me. Which leads to me to ask whether this sort of tiling can be related in any way to Bekenstein-Hawking entropy? http://www.scholarpedia.org/article/Bekenstein-Hawking_entropy Any thoughts or discussion appreciated! -Jezparov [link] [comments]  |
| Why can't atoms in period 14 form quadruple bonds? Posted: 25 Mar 2017 09:19 AM PDT A carbon atom has 4 valence electrons, so it should bond with another carbon atom with all four valence electrons. However, it doesn't occur in nature. I simply don't understand. [link] [comments]  |
| Why does pottery not break down when you store water in it/use it with water? Posted: 25 Mar 2017 07:43 AM PDT So pottery can be used to gather and store water, but why does it not break down from the water like clay normally would? [link] [comments]  |
| Does the intermediate axis theorem apply to Earth as well? Posted: 25 Mar 2017 01:05 PM PDT Is earth going to flip north e south pole? What consequences can such a flip have on life on earth? Are oceans going to submerge everything? [link] [comments]  |
| Does an electron interact with itself? Posted: 25 Mar 2017 07:37 AM PDT Describing an electron as a cloud, does one part of the cloud feel a force from the other part of the cloud? [link] [comments]  |
| Are there any areas in the Western U.S. are similar to the Appalachian/Blue Ridge Forest ecoregion? Posted: 25 Mar 2017 09:09 AM PDT I would like to know if there are any places west of the Great Plains that share a similar climate and habitat as that of the temperate deciduous forest found in Central and Southern Appalachia. *that are similar. Sorry. [link] [comments]  |
| Why is phloem alive and xylem dead? They both lack nuclei and organelles. Posted: 25 Mar 2017 02:59 AM PDT |
| Posted: 25 Mar 2017 09:23 AM PDT And if so, why do opinions within climate research differ so greatly regarding the time scale of runaway warming and potential collapse? [link] [comments]  |
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