Is your skin and hair able to absorb and utilise vitamins and minerals from creams, lotions and shampoo? |
- Is your skin and hair able to absorb and utilise vitamins and minerals from creams, lotions and shampoo?
- Can an object experience time dilation from both gravity and its acceleration due to gravity at the same time?
- How dense are Saturn's rings?
- +'s and -'s used in tables/charts
- Do quantum particles experience time dilation?
- Why is Orion so visible?
- How do snakes move?
- What creates the space-time warp of a black hole?
- How do companies like Jack Daniels that make a product that needs to be aged for years predict how much product they will need in the future?
- When I feel like there's someone behind me but no one is there, what am I feeling exactly?
- How come if I boil scrambled eggs they're white, but yellow when I pan cook them?
- How would parthenogenesis in humans be deleterious to the mother?
- Why is the string of all integers Aleph-0?
- Why can't atomic bombs use neutron reflection to detonate?
- Do states of matter apply to single atoms or molecules of a substance?
- Is there any empirical evidence of false media reports causing long-term negative accepted norms?
- Are Photons matter? And do they have mass? How much mass do they have relative to electrons? Does a photon with more energy have more mass? How do we calculate the amount of mass tiny particles have?
- How would a spacecraft be able to communicate with earth when accelerating to near the speed of light?
- How do various materials/compounds become hazardous when they they release smoke from heating or are vaporized?
- Have astronomers found any stars that they are certain do not have planets orbiting them?
- Why do you only get sore after the first few consecutive days of physical activity?
- If we could send a satellite to a black hole are there ways to transmit information back?
| Posted: 19 Nov 2015 05:42 PM PST |
| Posted: 19 Nov 2015 09:06 AM PST I know that a gravity field can cause time dilation for all objects in the field, even for those at rest. But gravity also sets objects in motion, and objects that are traveling at speed also experience time dilation. So can there be a double effect of time dilation due to gravity, say if an object is accelerating at a significant velocity towards a black hole with a very strong gravitational field? It just feels like double-counting if so. [link] [114 comments]  |
| Posted: 20 Nov 2015 04:45 AM PST If we were to physically enter them, would it be comparable to a plane entering clouds? Are they more gas like, sand like, gravel like, etc.? [link] [3 comments]  |
| +'s and -'s used in tables/charts Posted: 19 Nov 2015 01:15 PM PST I wondered what the +'s, ++'s and -'s mean in scientific papers when relating to the growth of microorganisms. I understand that + would mean growth and - would mean no growth, but would ++ mean increased growth then? I have added a picture as reference. In this example would this mean profuse growth of both Strep and Pneumococcus? Thanks for your help. [link] [18 comments]  |
| Do quantum particles experience time dilation? Posted: 20 Nov 2015 12:19 AM PST |
| Posted: 19 Nov 2015 09:24 PM PST I live in a very light-polluted city, yet this time of year Orion is clearly visible. Is this because its stars are close or exceptionally brilliant? Also, if I were on another planet in our solar system [all things being theoretically equal] would it look like Orion, or would my perspective skew its formation? [link] [4 comments]  |
| Posted: 19 Nov 2015 09:52 PM PST How do snakes move forward? Watching them, it seems like they move forward by slithering their body back and forth, but I can't see how that moves them forward. [link] [4 comments]  |
| What creates the space-time warp of a black hole? Posted: 19 Nov 2015 09:12 PM PST I am currently reading Kip Thorne's The Science of Interstellar. In it, he says that the mass of the singularity at the center of a black hole is not what is responsible for the black hole's warping of space time. Instead he seems to say that the warping of space time is created by the energy of the warped space time. I can't really follow how he tries to explain this statement, so I was wondering if anyone could help break it down for me. Also, if the mass that is compacted into the singularity isn't what is warping space-time, what (if anything) is it doing. [link] [1 comment]  |
| Posted: 19 Nov 2015 12:58 PM PST |
| When I feel like there's someone behind me but no one is there, what am I feeling exactly? Posted: 19 Nov 2015 10:01 PM PST |
| How come if I boil scrambled eggs they're white, but yellow when I pan cook them? Posted: 19 Nov 2015 08:58 PM PST Hi! I found this new technique of cooking scranbled eggs where you just beat the eggs and pour them into a pan of swirling, boiling water. It's delicious. But, it also makes the eggs white. OOn the flip side, an cooking eggs turns them yellow. What gives? If it helps, the texture is softer after the boiling method. Maybe the fact that water isn't lost during cooking causes the eggs to turn white? But how about some more technical explanation? Thanks! [link] [3 comments]  |
| How would parthenogenesis in humans be deleterious to the mother? Posted: 19 Nov 2015 09:55 PM PST We were talking about the Ovarian Time Bomb Hypothesis in my medical genetics class when we hit the topic of parthenogenesis. If I understand correctly, the hypothesis says that genetic imprinting may exist to prevent the spontaneous development of a zygote from a primary oocyte. It was mentioned that this would be extremely dangerous for the mother if this happened. I'm curious as to why. The only thing I can think of is maybe it being an ectopic pregnancy (if it would even be called a pregnancy). NINJA EDIT: Words [link] [1 comment]  |
| Why is the string of all integers Aleph-0? Posted: 19 Nov 2015 11:26 AM PST I know there's an explanation that if you lined up every single possible number between 0 and 1 in rows and made a string of digits where the ith digit is the ith digit of the ith row it would be a number not contained in any row but what's stopping you from just removing the decimal point and having an integer not in the set of all integers? [link] [28 comments]  |
| Why can't atomic bombs use neutron reflection to detonate? Posted: 19 Nov 2015 09:09 PM PST Thanks to TV's Manhattan I learned about nuclear criticality experiments where neutron reflective material was placed around fissile material to inch it closer and closer to a chain reaction. While dangerous this method can't induce an atomic bomb type explosion. Why not? What would happen if fissile material was completely surrounded by neutron-reflecting material? [link] [4 comments]  |
| Do states of matter apply to single atoms or molecules of a substance? Posted: 19 Nov 2015 06:14 PM PST For instance, would you say that a single atom of Iron is a solid whenever its temperature is below its melting point? [link] [11 comments]  |
| Is there any empirical evidence of false media reports causing long-term negative accepted norms? Posted: 19 Nov 2015 09:55 PM PST With all the instant media there seems to be endless contradictions and reporting based on no credible sauce... Where is this leading us? [link] [5 comments]  |
| Posted: 19 Nov 2015 07:52 PM PST I'm currently a high school student taking chemistry and physics, so please keep explanations relatively simple. [link] [15 comments]  |
| Posted: 19 Nov 2015 09:36 PM PST Because electromagnetic waves propagate at the speed of light, if a deep space craft were to start on earth and accelerate to near the speed of light, how could communication be possible given the effects of time dilation? [link] [3 comments]  |
| Posted: 19 Nov 2015 10:40 PM PST |
| Have astronomers found any stars that they are certain do not have planets orbiting them? Posted: 19 Nov 2015 08:15 AM PST There's been a huge surge in finding exoplanets over the past few decades, and I assume (maybe incorrectly) that they are found around the nearest stars. Have we seen any stars that have no planets? [link] [13 comments]  |
| Why do you only get sore after the first few consecutive days of physical activity? Posted: 19 Nov 2015 02:22 PM PST Being an athlete in a seasonal sport, I have an off-season. So I typically have about a week off after the season ends before I start working out again. Whenever I start working out (specifically running) after about a week off, my muscles get really sore the next day. I continue to work out every day, with increasing intensity for the first few weeks. However, after like the first 3 days, I don't get sore anymore. Why do muscles not feel sore the next day after multiple days of exercising them? Why don't they feel the same every time you put them through the same punishment? [link] [1 comment]  |
| If we could send a satellite to a black hole are there ways to transmit information back? Posted: 19 Nov 2015 06:54 AM PST |
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