Why don't babies get stretch marks as they grow? |
- Why don't babies get stretch marks as they grow?
- How did we conclude that iris and fingerprints are unique for each and every individual?
- How did they film the atomic bomb ?
- Can air pollution be accurately translated into smoking cigarettes? Is living in large Asian cities as bad as smoking, for example, 5 or 10 cigarettes a day?
- Can non waterfowl birds poo midflight?
- When a star becomes a black hole, does it happen gradually or suddenly?
- People stop taking their antibiotics before their prescribed dose is finished all the time. How has this not created more superbugs?
- what's the difference between black and red hematite ?
- Is there a magnetic field surrounding electric pole wires and if so, does it have any significant affect?
- How does a Lunar Eclipse, like the recent blood moon, happen?
- When we get sick with the common cold, what is actually happening to cause the symptoms?
- What happens to a bee that is transported a long distance? Can it find its way home?
- What are the consequences of CPT symmetry being broken?
- Why do somethings change color when they get wet?
- How many mass extinctions were there, and how do we know?
- Why do some bubbles last longer than others?
- Why does hair growth stop at a certain point on your arms, legs etc., but not your head?
- What did the Lamprey evolve from?
- How is canine bite force measured?
- Is cold water more effective at exstinguishing fires than hot water?
| Why don't babies get stretch marks as they grow? Posted: 29 Jul 2018 07:37 PM PDT |
| How did we conclude that iris and fingerprints are unique for each and every individual? Posted: 30 Jul 2018 04:21 AM PDT It is commonly known fact that no two persons can have the same fingerprints (and iris). But how can we conclude that? What is the research behind this? What are the chances that someone else on this planet in the present, past or future does not have the same biometrics as I do? [link] [comments]  |
| How did they film the atomic bomb ? Posted: 30 Jul 2018 04:55 AM PDT I don`t know if this is the right subreddit . But how did they film the atomic bomb explosion back in the day without ruining the footage / camera , And who was the poor soul who went and fetched them I am referring to this close up footage when you see the cars/ trees blown away by the shock wave https://www.youtube.com/watch?v=5gD_TL1BqFg https://www.youtube.com/watch?v=ztJXZjIp8OA Thank you ! [link] [comments]  |
| Posted: 30 Jul 2018 02:54 AM PDT After googling cigarettes pollution equivalent I found a lot of reports and studies that claim that the air pollution in large cities can be accurately represented as smoking X cigarettes a day. Is this true and scientific? Especially in terms of causing cancer and heart disease. Here's an example of a chart I found online: Air Pollution Location, Equivalent in cigarettes per day From http://berkeleyearth.org/air-pollution-and-cigarette-equivalence/ Some other links include: http://www.myhealthbeijing.com/pollution/is-pm2-5-from-air-pollution-the-same-as-from-smoking/ Are these scientifically correct, can breathing the air be represented in the number of cigarettes a person would smoke that day? Can it be "measured" that way in terms of causing harm to our bodies? And what would be the major differences and discrepancies between the two? Thank you [link] [comments]  |
| Can non waterfowl birds poo midflight? Posted: 29 Jul 2018 02:24 PM PDT We are having a lively debate on if no non waterfowl have the ability to poo during flight. A quick Google search came up inconclusive. Some sites suggested they don't have the proper muscles. [link] [comments]  |
| When a star becomes a black hole, does it happen gradually or suddenly? Posted: 30 Jul 2018 04:17 AM PDT |
| Posted: 30 Jul 2018 06:06 AM PDT |
| what's the difference between black and red hematite ? Posted: 30 Jul 2018 03:38 AM PDT |
| Posted: 30 Jul 2018 03:02 AM PDT I was leaving the gym last night and it was pretty quiet and all I could hear was the crackling sound of electricity passing through wires of the electric poles. This made me remember something I learned about in physics about how electric currents create a force field (or magnetic field...same thing?) around the wire where current is flowing. Does this mean that there is a force field surrounding the electric pole wires? If this force field exists, how strong is it and are there any implications or precautions taken because of this? [link] [comments]  |
| How does a Lunar Eclipse, like the recent blood moon, happen? Posted: 30 Jul 2018 06:46 AM PDT I fully understand how a solar eclipse works/happens but cannot for the life of me get my head around a Lunar eclipse. Can someone explain it to me in Layman's terms, as I feel I'm being really, really dense? [link] [comments]  |
| When we get sick with the common cold, what is actually happening to cause the symptoms? Posted: 29 Jul 2018 06:54 PM PDT ie. Why does swallowing become painful? [link] [comments]  |
| What happens to a bee that is transported a long distance? Can it find its way home? Posted: 29 Jul 2018 11:42 AM PDT We're on a cross country road trip, and found we had a stowaway bumblebee. We got it out of the car maybe 100 km away from where we likely picked it up, but if it hadn't been noticed it would have been taken a good 700 km away. Assuming it made it out of the car okay, what would a bee do in these circumstances? Would it try to find his way back to its hive? If so, would it even be possible for it to make its way back? If there's no way for the bee to get back to its own hive, could a beekeeper integrate it into a new hive? [link] [comments]  |
| What are the consequences of CPT symmetry being broken? Posted: 30 Jul 2018 01:33 AM PDT |
| Why do somethings change color when they get wet? Posted: 30 Jul 2018 12:56 AM PDT |
| How many mass extinctions were there, and how do we know? Posted: 29 Jul 2018 03:33 PM PDT I've heard that there have been five mass extinction events through Earth's history, and that an increasing number of scientists say we're in the middle of a sixth. But I've also heard that those five happened in the last half-billion years. Did no others happen earlier? How do we know a mass extinction event happened in the first place—do we just not have enough data from further back than 500 million years to tell? [link] [comments]  |
| Why do some bubbles last longer than others? Posted: 29 Jul 2018 12:56 PM PDT I was blowing bubbles at my GF from a bubble wand and I noticed that some of the bubbles exploded as soon as they touched a new surface (bed sheets/carpet) while others rested on the new surface and exploded after a while. What was the process that the bubbles went through before exploding? Why did some take more time to burst while others exploded upon impact? I'm guessing the surface tension of the bubbles that "held on" happened to be stronger, but if that is the case then what caused them to eventually pop? If a bubble is strong enough to hold on why (without any outside intervention) would it explode? [link] [comments]  |
| Why does hair growth stop at a certain point on your arms, legs etc., but not your head? Posted: 29 Jul 2018 08:58 AM PDT |
| What did the Lamprey evolve from? Posted: 29 Jul 2018 07:38 PM PDT I don't know if this is the best place to ask this, but after reading ASOIaF I made the mistake of googling this disgusting creature and having several nightmares, I started to ask - What did it come from? What region of the world is it from? Why is it so successful biologically? [link] [comments]  |
| How is canine bite force measured? Posted: 29 Jul 2018 10:42 PM PDT I am involved in a project that is trying to simulate a dog bite on a plastic enclosure. I can directly measure the geometry of dog teeth and creat rough approximations to use for testing, but the appropriate force to apply is giving me a lot of trouble. Everything I can find lists bite force for canines in PSI, which seems to be a nonsensical unit for this application - can someone explain how bite force is measured? When a source claims that a dog has a bite force of 350 PSI, what area is that measured over? Is it the entire footprint of the mouth? [link] [comments]  |
| Is cold water more effective at exstinguishing fires than hot water? Posted: 29 Jul 2018 09:59 PM PDT |
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