How does our body keep track of time? And how might this effect space travel? |
- How does our body keep track of time? And how might this effect space travel?
- What would happen if a sun, larger than a black hole, went into the black hole?
- Why are red and purple "next to each other", if they come from different parts of the EM spectrum?
- Since light is also a wave, can you use light to cancel out light as you can do with sound in noise-canceling headphones?
- Why does grated cheese often taste better than a chunk of the same cheese?
- Is there a formula for predicting stable isotopes?
- How do aquatic mammals deal with water in their lungs?
- [Chemistry] How does the viscosity of the proteins affect in a gel electrophoresis?
- Would geomagnetic storms become more common during the transitional period of a geomagnetic reversal?
- How exactly does electronic image stabilization work? Is it using a gyroscope?
- How much power could you generate if you put a water wheel in urinals that when spun generated electricity?
- When someone loses a limb does the body eventually compensate by producing less blood? If so, how long does it take the body to do so and where does the excess blood go?
- Is the possible number of combinations for a 5-digit number(each able to contain 0-9) 99999?
- Are there any major advantages to flapping wings, or are fixed wing aircraft something we have truly improved upon nature? Given advanced enough materials and power supply, could ornithopters theoretically be practical compared to fixed wing and rotor craft?
- Does energy create a gravitational pull?
- Could there be 3 moons in a co-orbital configuration at L3, L4, and L5?
- Why do all stars appear the same color in our night sky?
- Why does water not continue to spread and instead form a puddle?
- Does the ISS and in-space spacecraft have similar white noise that is depicted in sci-fi films?
- If I take a fresh piece of paper (printer paper, tissue or paper towel) and get it wet, the look and feel of the paper has changed - what's happened at the molecular level?
- What percentage of the carbon (via food) comes out as CO2 from our lungs as opposed to as excrement?
- Could We Synthesize a Nonpolar Glass?
| How does our body keep track of time? And how might this effect space travel? Posted: 23 Dec 2015 09:00 AM PST Ageing is a bio-chemical process which seems to be unidirectional. How does our body keep track of time? I know that we have an internal clock...but is it synchronized to something external like the sun, or is it something internal like a quartz crystal in a watch? How will this effect our ageing process in space...especially with the whole idea of traveling at the speed of light and coming back to find that everyone else has aged so much and you haven't. If the clock is internal, how does it matter how fast the body is moving. [link] [308 comments]  |
| What would happen if a sun, larger than a black hole, went into the black hole? Posted: 23 Dec 2015 09:06 AM PST star* not sun...I've been experimenting with black holes in Universe Sandbox ², and found that when a star larger than a black hole gets pulled towards it, Surely this can't be how it would actually happen? Thanks in advance :) Edit: By larger, I mean greater size.* Edit 2: Updated text for clarity Edit 3: Thanks for all your answers! [link] [95 comments]  |
| Why are red and purple "next to each other", if they come from different parts of the EM spectrum? Posted: 23 Dec 2015 08:41 AM PST So, we can make colour wheels like this one, and red and purple are next to each other. How can this be so if they are on opposite ends of the visible light part of the EM spectrum? [link] [80 comments]  |
| Posted: 23 Dec 2015 09:30 AM PST |
| Why does grated cheese often taste better than a chunk of the same cheese? Posted: 23 Dec 2015 10:52 AM PST |
| Is there a formula for predicting stable isotopes? Posted: 23 Dec 2015 08:51 AM PST I know it's roughly a 1:1 proton:neutron ratio, but I was wondering if there was anything more accurate than that. I plotted a few stable isotopes here, with places where it looks like there should be a stable isotope in red, so now I'm looking for some sort of relationship. Really, I'd just like to know if I'm wasting my time :) [link] [28 comments]  |
| How do aquatic mammals deal with water in their lungs? Posted: 23 Dec 2015 08:38 AM PST |
| [Chemistry] How does the viscosity of the proteins affect in a gel electrophoresis? Posted: 23 Dec 2015 08:59 AM PST |
| Posted: 23 Dec 2015 08:07 AM PST I've read that a geomagnetic reversal can take millennia to complete, and that Earth's magnetic field would become weaker and more chaotic during the transition. Would this cause geomagnetic storms to become more common and/or more severe? If so, how would this affect our technology? [link] [5 comments]  |
| How exactly does electronic image stabilization work? Is it using a gyroscope? Posted: 23 Dec 2015 07:20 AM PST |
| Posted: 23 Dec 2015 08:37 AM PST Every guy wants something to aim at when he pees at a urinal. What if you put a pinwheel that spins when hit by the force of urine and generates electricity? Assuming you placed one at a bathroom at Disneyland to ensure a constant supply. [link] [43 comments]  |
| Posted: 23 Dec 2015 11:21 AM PST perhaps a stupid question, but I would imagine with the limb gone your body would require less blood in circulation. [link] [9 comments]  |
| Is the possible number of combinations for a 5-digit number(each able to contain 0-9) 99999? Posted: 24 Dec 2015 12:28 AM PST Sorry for the simple question. But if we have a 5-digit number and each digit can hold a value from 0-9. Then how many possible combinations are there? Also, what formula can you use to get this in other situations of different digits. (If any at all). [link] [13 comments]  |
| Posted: 23 Dec 2015 11:37 AM PST |
| Does energy create a gravitational pull? Posted: 23 Dec 2015 11:01 PM PST From my intro course on special relativity, we learned that mass and energy are more or less equivalent. Further it is of my understand that the effects of gravity come from mass bending spacetime I would assume if this were the case and energy did bend spacetime, it would have to be a large amount of energy (a conversion rate of c2 is huge after all) for any effects to be felt at all, right? [link] [8 comments]  |
| Could there be 3 moons in a co-orbital configuration at L3, L4, and L5? Posted: 23 Dec 2015 10:49 AM PST I know there can sometimes be dual co-orbital moons, but ive heard that L3 is unstable. Dividing a circle into thirds would put the points at 0/360, 120, and 240 degrees, which seems to match up with the langrangian point locations. Any and all help is welcome, thanks guys [link] [7 comments]  |
| Why do all stars appear the same color in our night sky? Posted: 24 Dec 2015 03:03 AM PST |
| Why does water not continue to spread and instead form a puddle? Posted: 24 Dec 2015 02:26 AM PST What is causing the water to stop spreading until it is one atom thick? [link] [2 comments]  |
| Does the ISS and in-space spacecraft have similar white noise that is depicted in sci-fi films? Posted: 24 Dec 2015 02:14 AM PST I find "space" white noise in films very soothing and listen to it when working/writing. Is it a simulated engine hum? [link] [3 comments]  |
| Posted: 23 Dec 2015 11:07 AM PST ... and is the change irreversible? Edit: damn I didn't word this properly... I meant, when it's been wet, but then dried out, it doesn't return to being like fresh paper. [link] [5 comments]  |
| What percentage of the carbon (via food) comes out as CO2 from our lungs as opposed to as excrement? Posted: 23 Dec 2015 07:35 PM PST In other words, if you counted the carbon atoms that come into our system, what percentage leaves us as carbon dioxide vs feces vs sweat vs urine, etc? Ballpark. [link] [3 comments]  |
| Could We Synthesize a Nonpolar Glass? Posted: 23 Dec 2015 07:31 PM PST Apologies if this is a stupid question but... I'm aware that the reason we have a meniscus when we add water to a graduated cylinder is that the glass is typically polar/hydrophilic making the water "stick." Now I'm not exactly sure what graduated cylinders are made out of, but I'm assuming some kind of silicon oxide (?) which is definitely polar. I tried researching it myself but wasn't able to dig up much. Would it be possible to create a clear, glass-like (in that it's fairly resistant to acids, etc.) substance that didn't result in a water meniscus? My Chem class last year (11th grade) didn't really cover this at all :/ Thank you! [link] [comment]  |
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