Are things like peanut butter, cream cheese, jellies etc. considered a liquid or a solid? |
- Are things like peanut butter, cream cheese, jellies etc. considered a liquid or a solid?
- Do planetary orbits cause measurable "tides" on the surface of the sun?
- When one stands on the moon, would the horizon appear to be closer, since the moon is so much smaller than earth?
- Have we ever converted energy to mass?
- If a disc was spun at 1 RPM, how large would this disc need to be in order for the edge of it to reach the speed of light?
- How can you have ohmic resistors if resistance causes heat increase and heat increase causes higher resistance?
- Could a fiber-optic cable be modified to work as a periscope?
- The Earth is an oblate spheroid, but what about the atmosphere? Does it fit the shape of the Earth or is it more perfectly spherical?
- Do gravitational waves/gravitons have angular momentum?
- Why can there not be an n=0 mode on a waveguide?
- What is the origin of the stellar types classification letters?
- How did scientist succeed to create an acoustic black hole ?
- Is it possible to know what color a material will be without actually seeing it?
- How does the body cope with the presence of heavy metals in the circulation?
- Why are frozen-then-thawed bananas so sweet?
| Are things like peanut butter, cream cheese, jellies etc. considered a liquid or a solid? Posted: 22 May 2016 04:35 PM PDT |
| Do planetary orbits cause measurable "tides" on the surface of the sun? Posted: 22 May 2016 02:39 PM PDT Does this affect sunspots and solar storms when the planets line up? [link] [comments]  |
| Posted: 22 May 2016 11:40 PM PDT |
| Have we ever converted energy to mass? Posted: 22 May 2016 11:17 PM PDT |
| Posted: 22 May 2016 09:53 PM PDT Such a weird question, but I've been thinking about this for much longer than I'd like to admit. [link] [comments]  |
| Posted: 22 May 2016 12:44 PM PDT So filament lamps are non-ohmic because if you increase the voltage across them then the charge carriers disipate more energy in the resistance of the lamp, causing it to heat up, increasing the resistance, and therefore reducing the increase in current with each increase in voltage. Therefore they are not proportional and therefore it is non-ohmic. With an ohmic resistor, surely as current passes through the resistor, the resistor heats up and increases in resistance just like with the filament lamp and therefore not ohmic because the resistance is changing? Or am I missing something? [link] [comments]  |
| Could a fiber-optic cable be modified to work as a periscope? Posted: 22 May 2016 10:52 PM PDT We were learning about fiber optics in school and my mind started wandering and it got me wondering…normally in a fiber optic cable the light from the incoming image ends up horribly distorted before it comes out the other end because of the amount of times it reflects of the inside "walls" of the cable, but if you could have a cable made of say a million or so cables within a cable, each cable could carry a unique signal or point of light like a pixel on a tv screen. So, if you could take an image and focus it into a small area using a lens (or series of lenses), an area probably close to the point where all the rays of light converge, you could then transfer the image through the cable and then do the reverse process on the other side where the image could be projected on to a screen. I don't see why this wouldn't work, besides the construction challenges. To create a 1MP image would require a million individual (optically insulated) cables which would have to be very small. If they were, say 9μm in diameter, you could fit 1,000,000 of them in a 3mm2 area Maybe it has already been done, and i think there could be many applications for this if it was economical to produce, not to mention the novelty factor, but i get the feeling that the cost to produce something like this would not be worthwhile in a world where everything is digital. [link] [comments]  |
| Posted: 22 May 2016 08:23 AM PDT I was reading about how Everest is the highest point above sea level, but Mount Chimborazo is the farthest point on Earth from the center. Does the atmosphere fit these bulges in the Earth's shape? Or does it fit as a sphere around Earth? If the atmosphere is perfectly spherical, the air at the top of Chimborazo would be thinner than at the top of Everest, right? [link] [comments]  |
| Do gravitational waves/gravitons have angular momentum? Posted: 22 May 2016 08:46 PM PDT |
| Why can there not be an n=0 mode on a waveguide? Posted: 22 May 2016 01:04 PM PDT Take an elastic membrane for example. http://people.seas.harvard.edu/~jones/ap216/lectures/ls_1/ls1_u8/ls1_unit_8104.gif My physics notes say there has to be at least one oscillation in the x direction: why can it not be flat in the x direction, and a wave travelling down the z direction like normal? [link] [comments]  |
| What is the origin of the stellar types classification letters? Posted: 23 May 2016 12:44 AM PDT Hi everybody! Does anybody know why the spectral types are called like that, i.e. O, B, A, F etc? [link] [comments]  |
| How did scientist succeed to create an acoustic black hole ? Posted: 22 May 2016 08:34 PM PDT |
| Is it possible to know what color a material will be without actually seeing it? Posted: 22 May 2016 11:58 AM PDT |
| How does the body cope with the presence of heavy metals in the circulation? Posted: 22 May 2016 07:42 AM PDT When I did my Osteopathy undergraduate degree many years ago, I recall learning that molecules with a molecular mass greater than six kilo-Daltons could not pass through the basement membrane of the kidney, which meant that heavy metals such as mercury and lead (and other nasties such as DDT) could not be excreted, and were consequently stored in the liver until death. Yet, in the 19th century, hatters were driven mad by mercury. (Hence, the behaviour of the Mad Hatter in 'Alice in Wonderland.'). For this to happen, I assume at least some of the mercury must have not been stored but have been free-floating in the circulation and made its way to the brain. Can anyone throw some light on this? [link] [comments]  |
| Why are frozen-then-thawed bananas so sweet? Posted: 22 May 2016 07:41 AM PDT We peel and freeze bananas for smoothies. I accidentally let one thaw. It's predictably mushy, but also unbelievably sweet. Where does all that sugar come from? [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