How do odour sprays like Febreeze or Lysol eliminate odours in the air? |
- How do odour sprays like Febreeze or Lysol eliminate odours in the air?
- Why does a lack of oxygen cause cell death instead of the cell 'winding down' into some kind of stasis?
- What makes GPUs so much faster at some things than CPUs, what are those some things, and why not use GPUs for everything?
- Do surface imperfections significantly increase the surface area of an object?
- Why do I need an even number of triangles when creating a closed 3D figure out of triangles?
- Why do baryons have a half life?
- Are quotidian events stored differently in memory?
- Given that asteroids from Mars are found of Earth, would asteroids from Earth be found on Mars?
- Does chemistry matter when synthesizing superheavy elements?
- Can someone give me an idea how big 6!!! is? I understand 6! = 720 and 6!! = 2.6012189435657951E+1746. What is 6!!!? Can it be written out or described in terms of atoms of the universe or moments since the Big Bang or something?
- Does the momentum of light increase with intensity?
- Why are bats the reservoir for so many zoonotic diseases?
- How does an organism's body allow it to maintain the same amino acid composition in cells even when the diet of the organism is variable in different amino acid concentrations?
- How does your organism measure the time?
- Why do most chemical catalysts contain a second or third row transition metal, as opposed to a first row transition metal?
- What controls the height of cloud formations, why are some high up and some are low creating things like fog?
- Why do soft drinks and beers foam up a lot when you pour them into a glass but not soda water?
- Why is a detached, insulated but non-heated garage warmer than outside during winter?
- What is it about brain death that precludes the possibility of a person from being awakened?
- How do hashes work? Wouldn't there be one hash that could result in many, many input data possibilities?
- Since there is no perfect vacuum in space, is it possible to move in space using similar techniques like in air or in water?
- Regarding the obliquity of planets in the solar system, why are Venus and Uranus so different?
| How do odour sprays like Febreeze or Lysol eliminate odours in the air? Posted: 13 Jan 2017 09:16 PM PST I understand adding a good smell but is there chemicals in it that destroys the odours from whatever youre trying to rid the room of? [link] [comments]  |
| Posted: 13 Jan 2017 11:03 PM PST |
| Posted: 13 Jan 2017 04:29 PM PST I understand that GPUs can be exponentially faster at calculating certain things compared to CPUs. For instance, bitcoin mining, graphical games and some BOINC applications run much faster on GPUs. Why not use GPUs for everything? What can a CPU do well that a GPU can't? CPUs usually have an instruction set, so which instructions can a CPU do than a GPU cannot? Thanks! [link] [comments]  |
| Do surface imperfections significantly increase the surface area of an object? Posted: 14 Jan 2017 04:27 AM PST For instance, is there a significant difference between a 1x1x1 cube made out of wood vs a mathematically perfect 1x1x1 cube? What types of material or what manufacturing methods having an interesting effect on this phenomena? [link] [comments]  |
| Why do I need an even number of triangles when creating a closed 3D figure out of triangles? Posted: 14 Jan 2017 06:47 AM PST While working on an assignment in class, I noticed something interesting. In order to create a 3D figure out of multiple triangles of the same size and shape I would always need an even number of triangles. Is this true and if so, is there a proof for it? [link] [comments]  |
| Why do baryons have a half life? Posted: 14 Jan 2017 04:41 AM PST I noticed that the proton has a half life of 1032 years. A neutron seems to have a half life of 10.3 minutes when not near a proton. Why is this? How can the quarks, which are bound together so strongly, decay that quickly? [link] [comments]  |
| Are quotidian events stored differently in memory? Posted: 13 Jan 2017 09:04 AM PST Every day I do very similar things: take shower, put contacts in, take medicine, fill water bottle in backpack, etc. Sometimes it's genuinely confusing to remember if I did or didn't do something, because I've done it hundreds or thousands of times before. This seems to fall between long- and short-term memory. I know where my contact case is in a strange hotel, even though I put it down somewhere 12+ hours before. I can find it in the dark the next morning. But a day later, there's no particular trace of these daily events. I probably couldn't even describe the hotel room with accuracy. Are these types of events creating long-term memories that are ruthlessly pruned because of no reinforcement, or are they stored differently? [link] [comments]  |
| Given that asteroids from Mars are found of Earth, would asteroids from Earth be found on Mars? Posted: 14 Jan 2017 04:10 AM PST And, if we find life on Mars, how would we show it wasn't just seeded there from Earth from one of these asteroids? I know that we have found chunks of Mars on Earth in the form of some very rare asteroids. The thought being that pieces of Mars could be thrown into space during large asteroid collisions. Could this happen in reverse?...maybe with some large impact like the Yucatán impact of 65-million years ago? [link] [comments]  |
| Does chemistry matter when synthesizing superheavy elements? Posted: 13 Jan 2017 04:54 PM PST Because these new, artificially-produced elements require much energy to be produced and decay rapidly, I wonder whether the electrons are able to rearrange themselves into increasingly complicated configurations, and if so, whether it is possible to study the new element's chemical properties in any useful capacity. [link] [comments]  |
| Posted: 13 Jan 2017 08:30 PM PST |
| Does the momentum of light increase with intensity? Posted: 14 Jan 2017 12:24 AM PST If we think about a particle with mass and give it a velocity (v) it will have a momentum, expressed by the equation p = mv. If we have two of said particles moving at velocity v their total collective momentum will increase as the mass has increased. Light, however, does not have a mass as such but it has momentum. If the intensity of the light is increased such that there are many photons instead of one, will momentum increase? I can think of two possible answers however I'm not sure if either is correct. 1: We view the many photons as one system. As the number of photons increases mass does not increase (as photons have no mass) and neither does velocity (as c is constant), that means momentum will be the same as if there were one photon. 2: We must view each photon as an individual photon with individual momentum and never as 'combined photons' thus as the number of photons increase momentum will increase in a linearly. Thanks in advance for any answers. [link] [comments]  |
| Why are bats the reservoir for so many zoonotic diseases? Posted: 13 Jan 2017 07:42 AM PST I've been reading David Quammen's Spillover, and it seems that for a lot of deadly zoonotic diseases - Hendra, Ebola, SARS, etc. - the natural reservoir is bats. This is kind of surprising to me, given that humans are not particularly closely related to bats, and we don't spend all that much time in close proximity to them (unlike, say, rats or pigeons). Is it just a coincidence that these three diseases all came from bats, or is there something about bats' immune system or lifecycle that makes them particularly apt to act as reservoirs of this kind of disease? [link] [comments]  |
| Posted: 13 Jan 2017 07:43 PM PST |
| How does your organism measure the time? Posted: 13 Jan 2017 07:31 AM PST I've always wondered how your body (or any living organism) knows when it's time to start processes like puberty or end others, like growing. We all hit puberty in a really close range of years, but how does the body keep track of time to know it's the moment to do it? [link] [comments]  |
| Posted: 13 Jan 2017 12:32 PM PST As the title says, I am interested in understanding why elements such as palladium, iridium, ruthenium, etc are widely seen in chemical catalysts, but elements such as iron, copper, manganese, etc are not. I have seen a few chemical reactions involving titanium and nickel complexes used, but not nearly as frequently as second and third row transition metals. What about these elements make them more active? Why do we not see more first row transition metal based catalysts? [link] [comments]  |
| Posted: 13 Jan 2017 06:52 AM PST |
| Why do soft drinks and beers foam up a lot when you pour them into a glass but not soda water? Posted: 13 Jan 2017 06:06 PM PST |
| Why is a detached, insulated but non-heated garage warmer than outside during winter? Posted: 13 Jan 2017 09:27 AM PST |
| What is it about brain death that precludes the possibility of a person from being awakened? Posted: 13 Jan 2017 05:14 PM PST I get that brain death takes place. But what is it, specifically, that precludes us from -- hypothetically, of course -- re-oxygenating the blood and reviving the brain? What takes place, on a biological/physical and medical level, that precludes the possibility of a person's consciousness from being revived? Thanks science guys! :D [link] [comments]  |
| Posted: 13 Jan 2017 01:16 PM PST Let's say your input data is 1 million characters (alphabetic in nature) of data, and your resulting hash is a 16 digit string of hex values. Your input data would have 261000000 possible combinations of unique arrangements, correct? But your hash result would only have 1616 unique arrangements. So there would be many inputs that would result the same hash. Is it just such a low probability that when you change something that it would result in the same hash and therefore we can say it's secure enough (in the case of cryptography)? [link] [comments]  |
| Posted: 13 Jan 2017 08:19 PM PST |
| Regarding the obliquity of planets in the solar system, why are Venus and Uranus so different? Posted: 13 Jan 2017 11:06 AM PST |
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