What really happens when I "get used" to cold water? |
- What really happens when I "get used" to cold water?
- In regards to projectile motions, why can the initial velocity of the object found at one angle be used to solve for variables at different?
- How did we get the high resolution photos of the bright spots on Ceres?
- Does redshifted light have a higher energi level than a red light shone here on earth?
- If the G1.9+0.3 supernova remnant is 25000 LY away, how do we know it's only 110 years old? Is there a specific piece of the event that is being dated?
- If I change the amount of Gauge Bosons in a system, will that affect in any way the strength of their respective interaction/force?
- Do "photonic booms" happen?
- Were there calculations for visiting the moon prior to the development of the first rockets?
- Do neurons have their own genome?
- What are the length scales involved in degeneracy pressure?
- How fast would I have to tear paper for it to burst into flames?
- The negative side of the square root does not matter?
- How come each vibrating particle in a mechanical wave doesn't transmit the energy equally to the particle before as well as after it?
- How safe would it be to wear a ring made out of pure osmium?
- Pangea Location?
- How does a Red Giant gain its mass?
| What really happens when I "get used" to cold water? Posted: 30 Mar 2016 11:34 PM PDT When I wash or swim in cold water, after a while the water starts to feel warm. I've swum in a glacial runoff lake and it felt warm after a while, even though I'm sure my body was working very hard to keep from losing all its heat. Thanks! [link] [comments]  |
| Posted: 30 Mar 2016 07:09 PM PDT What I mean by that is if we have the initial velocity for an object being thrust outward at a specified angle, what proof do we have to say that we can use that initial velocity to theoretically solve for say, the distance the object will travel at a different launch angle or the time the object will be in the air for a different angle? [link] [comments]  |
| How did we get the high resolution photos of the bright spots on Ceres? Posted: 30 Mar 2016 11:41 PM PDT |
| Does redshifted light have a higher energi level than a red light shone here on earth? Posted: 31 Mar 2016 02:45 AM PDT I know that blue light has a higher foton-energy than red light. So if we say a theoretical blue light was shining far away from earth, so far away it gets redshifted to red light. Has the foton-energy in the light changed on its travels to earth? Or does it still have the same energy as it had when it was blue? I understand that redshift is caused by the galaxy is stretching but it seems weird that a redshifted red light could have higher foton-energi than a red light (with the same wavelength) shone on earth. Edit: Changed "energy level" to "foton-energy" [link] [comments]  |
| Posted: 30 Mar 2016 05:04 PM PDT I'm aware the event actually took place roughly 25,000 years ago, and strictly hung up on how the age of 110 years old was determined. If the remnant itself is only 110 years old, how can we observe it presently? [link] [comments]  |
| Posted: 30 Mar 2016 10:03 PM PDT |
| Posted: 30 Mar 2016 03:26 PM PDT I suppose there's no way to know for sure, but if something moves faster than the speed of light, would it create a "boom" of light like a plane does when it moves faster than sound? [link] [comments]  |
| Were there calculations for visiting the moon prior to the development of the first rockets? Posted: 29 Mar 2016 12:39 PM PDT For example, was it done as a mathematical experiment as to what it would take to get to the Moon or some other orbital body? [link] [comments]  |
| Do neurons have their own genome? Posted: 30 Mar 2016 04:50 PM PDT My AP Biology always said that all the cells in a your body have the same DNA but a few articles on the internet like this one ( https://www.sciencenews.org/article/brain-cells%E2%80%99-dna-differs ) say that neurons often have different ones and even unique to a specific neuron. So who is right? [link] [comments]  |
| What are the length scales involved in degeneracy pressure? Posted: 30 Mar 2016 06:48 PM PDT In discussions about degeneracy pressure and the Pauli exclusion principle, it is common for people to talk about fermions that are "close together" not being able to occupy the same quantum state. What is close together? I guess since it is maybe more accurate to say that exclusion principle really says that the wave function of fermions is anti-symmetric, maybe the question should be at what point is a system too large to specify a wave function? The example that I'm trying to better understand is the white dwarf or neutron star example. Certainly these are large systems from a quantum perspective. Is it that within the star, there can exist a single wave function that describes all of the, say, electrons, and therefore no 2 electrons in that star can occupy the same quantum state? [link] [comments]  |
| How fast would I have to tear paper for it to burst into flames? Posted: 30 Mar 2016 06:23 AM PDT |
| The negative side of the square root does not matter? Posted: 30 Mar 2016 07:24 PM PDT I don't believe the title, but this is the impression people on the internet have been giving me when solving this math problem. I am not talking about sqrt (-6) I am talking about sqrt (36)=+/-6 Can someone give me an example why it is important, I mean why would we be taught that the sqrt (36) is +6 and -6? The problem is contextless and people keep telling me we just take the principle square root...when the question saya nothing but sqrt (36). There is another variation, but at the end, you get +/-6. I dont get why we assume to take the principle square root. I am also shown pictures of the sqrt(x) graph but the reason they dont show the negative valuesnis because that would go against the definition of a function! AKA, we cant display a fuction where x has 2 values, it can only have one! Thanks for any help. Or learning incase i am wrong. [link] [comments]  |
| Posted: 30 Mar 2016 11:09 AM PDT |
| How safe would it be to wear a ring made out of pure osmium? Posted: 30 Mar 2016 07:22 AM PDT I've looked through this quite a bit out of curiosity. On some old posts on other forums, people have mentioned how it can be pretty toxic for you due to osmium's volatile and deadly oxide, osmium tetroxide, however upon doing some of my own research what I found was that as a pure metal under normal conditions, osmium is fairly unreactive, only forming the tetroxide when in a powder form or if heated to 400C, at which point if it ever happens i'd be dead anyways :( So how safe would it be to wear a ring made out of pure osmium, for a short time or for a few/many years? Also, would it tarnish over time or keep its natural blue-silver color? (and if it does tarnish, how fast would it tarnish importantly and how safe would it be, as osmium can also form the safer, non-toxic osmium dioxide as well, and would there be any way to remove this tarnish?) As a side note: I found a site that sells them, but it isn't an english company and the rings look more like crystals, whereas I was hoping for a normal metal ring, such as in the shape of a plain gold/platinum one [link] [comments]  |
| Posted: 30 Mar 2016 07:09 PM PDT I asked my geology teacher this the other day but she could not give me an answer. If I were to look on a globe, where on it would the Supercontinent Pangea have been located at relative to our current world map? [link] [comments]  |
| How does a Red Giant gain its mass? Posted: 30 Mar 2016 12:09 PM PDT How does something so small become so large without adding any physical elements to become larger? [link] [comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment