Why can't I remember a smell or taste the same way I can an image or a sound? |
- Why can't I remember a smell or taste the same way I can an image or a sound?
- If dry ice is made of CO2, and CO2 is transparent, why does it produce a white fog?
- Is there a scientific explanation for the eerie silence people describe before large storms?
- [Biology] Do birds of a flock obey some sort of hirearchy? Is there an "alpha" bird or birds?
- Are there error correcting codes in thermodynamics?
- Why are hybrid animals like Ligers and Mules born sterile?
- How many dimensions are out there? 10 or 24 or more?
- Why was Kalium renamed to Potassium?
- How does a violent thunderstorm or tornado cause the sky to appear green?
- Do communication waves interfere with each other?
- How can animals detect water when we are taught that water doesn't have a scent?
- What was the size of the very early universe?
- Can computers read a book and answer our questions beyond basic keyword searches?
- Why don't our teeth heal?
- For what situations would the 3rd derivative (and beyond) of displacement, eg jerk, be applied or used?
- How do atoms join together?
- Can someone please explain holography to me? Just the last step; I can't find the explanation anywhere on the internet.
- Where do neutrons come from?
- How can a non radioactive material have radiation?
- Are there any reptiles that prefer really dark places?
- Does light travel faster through hot air than it does cold air?
- If you keep flying a plane upwards what happens?
- How do atoms convert to energy?
| Why can't I remember a smell or taste the same way I can an image or a sound? Posted: 11 Jun 2017 09:05 PM PDT For sounds and images, I'm able to replicate those sense data in my head. But for tastes, smells, and touches, I can only remember descriptions of that sensation. For example, my favorite food is ramen and I'm unable to simply produce the taste of ramen in my head - I can only remember that it is savory and salty. Though it seems that I am able to compare tastes and smells (I know one ramen tastes differently from the next, even if they may both be salty and savory). Does this mean I can subconsciously replicate those sense data? Thanks. [link] [comments]  |
| If dry ice is made of CO2, and CO2 is transparent, why does it produce a white fog? Posted: 11 Jun 2017 01:18 PM PDT |
| Is there a scientific explanation for the eerie silence people describe before large storms? Posted: 11 Jun 2017 01:18 PM PDT |
| [Biology] Do birds of a flock obey some sort of hirearchy? Is there an "alpha" bird or birds? Posted: 11 Jun 2017 06:27 PM PDT Woke up today to the sound of some Kookaburras (not that they're necessarily a bird that flocks) outside my window (Australian here) and I was wondering how birds of a flock might interact with each other as far as some pecking order (no pun intended, seriously) is concerned? [link] [comments]  |
| Are there error correcting codes in thermodynamics? Posted: 12 Jun 2017 04:55 AM PDT In information theory there are methods for detecting and correcting errors in the transmission of information, and since thermodynamics has proven equivalence with information does the same thing exist in thermo? If so, what is the physical meaning? [link] [comments]  |
| Why are hybrid animals like Ligers and Mules born sterile? Posted: 11 Jun 2017 02:35 PM PDT I've heard it is an imbalance of chromosomes from the different species that isn't so different that they can breed in the first place but different enough that their offspring can't produce eggs or sperm, but why is this? [link] [comments]  |
| How many dimensions are out there? 10 or 24 or more? Posted: 12 Jun 2017 04:45 AM PDT I have read about 10 but is 24 just a theoretical number? [link] [comments]  |
| Why was Kalium renamed to Potassium? Posted: 12 Jun 2017 04:36 AM PDT |
| How does a violent thunderstorm or tornado cause the sky to appear green? Posted: 11 Jun 2017 01:53 PM PDT |
| Do communication waves interfere with each other? Posted: 12 Jun 2017 12:46 AM PDT I saw almost everyone in a conference hall with their cellphones out, watching videos and such. Do cellphone signals and similar signals interfere with eachother? How is it that large amounts of data can be so accurately directed to different devices? [link] [comments]  |
| How can animals detect water when we are taught that water doesn't have a scent? Posted: 12 Jun 2017 12:40 AM PDT My hypothesis is that some animals don't detect water, but actually detect the effects water has on the environment in which it is found, for example minerals in water due to the effect of erosion or the increased vegetation surrounding water sources. [link] [comments]  |
| What was the size of the very early universe? Posted: 11 Jun 2017 02:01 PM PDT Howdy, I'm reading Neil de Grasse Tyson's "Astrophysics for People in a Hurry," and he writes something that is driving me nuts regarding the size of the very early universe. For those not familiar with the book, the opening chapter starts with the Big Bang, and takes you through all of the things that are happening with quarks, leptons, hadrons, etc. He describes all these things and says stuff like, "A billioninth of a second has passed." It's a very compelling literary tool. But then he writes this: "By now, one second of time has passed. The universe has grown to a few light-years across..." Here's what is bothering me: if only a second of time has passed, how could the universe have expanded to a few light years across? How could any of those early particles have traveled further than a light second? Presumably at this point the particles were all limited to traveling at the speed of light. So after one second of time, wouldn't the diameter of the universe (assuming it was basically a sphere) be 2 light seconds? [link] [comments]  |
| Can computers read a book and answer our questions beyond basic keyword searches? Posted: 11 Jun 2017 11:46 PM PDT Questions like:
[link] [comments]  |
| Posted: 11 Jun 2017 07:38 PM PDT Why do we need fillings for our cavities, after all shouldn't evolution have caused that our teeth can regenerate like our bones and skin? Idk if this is the same but; We see this by some rodents who's ameloblasts don't die after their teeth grow. Though they need to constantly gnaw at things, to keep their teeth at the proper size and shape, this seems to be a much more practical solution ("evolution-wise") than not healing at all. [link] [comments]  |
| Posted: 12 Jun 2017 12:24 AM PDT |
| Posted: 12 Jun 2017 02:16 AM PDT Eg. Hydrogen + carbon dioxide - water. How does the hydrogen and carbon dioxide join together? [link] [comments]  |
| Posted: 11 Jun 2017 12:01 PM PDT OK, so I understand interference, coherence and all that kinds of things. I want to learn about holography, so I open its article on Wikipedia and read. It's all OK until in the "How it works" section, in the "Process" paragraph, I find this:
How? So I have an interference pattern, I have somehow frozen it. Then I shine a light on it. Why does the light shining on the interference pattern produce the other beam which created the pattern? Thanks. [link] [comments]  |
| Posted: 11 Jun 2017 12:56 PM PDT If the universe was proton soup after the Big Bang and these protons began gathering in large clouds of hydrogen which due to gravity started to compress and heat and fuse into other elements like helium, where did the neutrons come from? [link] [comments]  |
| How can a non radioactive material have radiation? Posted: 11 Jun 2017 01:38 PM PDT Assume I'm exposed to radiation, how do I become radioactive? From my understanding radiation are gamma beta and alpha Rays. For cases like visiting Chernobyl I should be safe after leaving and cleaning any contaminated clothes, but people can measure radioactivity on someone's body, that doesn't make sense [link] [comments]  |
| Are there any reptiles that prefer really dark places? Posted: 11 Jun 2017 11:44 PM PDT I'm worldbuilding something and I have a species of REPTILIAN HUMANOIDS who evolved as a species on the night side of a tidal locked planet, and as such anything beyond the most minimal amount of light actually damages their skin along the lines of xeroderma pigmentosum As far as I know there's no reptile or animal that's actually physically harmed by light, though please let me know if there is. What I'm looking for is any reptile or other animal with an extreme dislike for light, but isn't nocturnal. [link] [comments]  |
| Does light travel faster through hot air than it does cold air? Posted: 11 Jun 2017 10:32 AM PDT |
| If you keep flying a plane upwards what happens? Posted: 11 Jun 2017 11:42 AM PDT |
| How do atoms convert to energy? Posted: 11 Jun 2017 11:23 AM PDT If matter and energy and interchangeable, how do atoms convert to photons? [link] [comments]  |
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