If someone gets a blood transfusion, wouldn’t they have a mishmash of genetic material appear in a DNA test? |
- If someone gets a blood transfusion, wouldn’t they have a mishmash of genetic material appear in a DNA test?
- Does the perception of pitch change as you age?
- Why are potassium supplements so regulated ?
- How do birds thermoregulate?
- In babies and small kids what is the reason of timing vaccines with age? Why can't all vaccines be given at the same age?
- Do fusion reactions take place in gas giants?
- Does sleep deprivation effect the brain structurally?
- How do paleontologists distinguish between a new species and a rare/unique mutation when discovering remains?
- Why can’t we use vaccines as treatments?
- Do genetics and inherited traits from parents affect what each individual's fingerprints look like?
- How do we know from fossils that creatures were mammals?
- How do Astronomers keep track of all the objects and systems they've observed, which ones they haven't and where they are located at any time?
- I have heard it said that many computerised random number generators are never truly random. Why is that?
- Have the poles of Earth always been extremely cold? Regardless of climate changes over time, have the poles remained perennially cold?
- How and why do faraday cages work?
- Does light save time by bending towards the normal when entering a slower medium? If so then by how much?
- How did canines as we know them develop eyesight?
- Why do clouds sometimes look pink in the evening?
- Do solids have a limiting/extreme value of surface tension?
| Posted: 25 Jun 2018 03:24 PM PDT |
| Does the perception of pitch change as you age? Posted: 25 Jun 2018 08:04 PM PDT This is kind of getting on the very fringes of medical science as all I could find is a forum post: https://whomayshebe.livejournal.com/364583.html But it confirms I'm not going crazy. As I'm getting into my 30's I distinctly know what a note sounds like in my head from childhood and I know that an instrument playing it is quite a bit higher now in my age. For example, using the western scale an E sounds like it's halfway towards being an F now. This is actually kind of distressing as a musician as I'm starting to get disoriented (it's almost like colors have shifted and you're being asked to paint a scene for everyone else when red is now blue and green is purple for you). There was a UCSF study that acknowledged this phenomenon but didn't address it any further as far as I could find. Why would this be? Would there be any hope for a cure? Or is it actually the opposite - my childhood self was hearing things lower than they should be and now that I'm an adult my hearing is now accurate? Lastly can there an objective test for this? [link] [comments]  |
| Why are potassium supplements so regulated ? Posted: 26 Jun 2018 03:15 AM PDT So a grown male should get around 4500mg of potassium a day. When I was looking for supplements I noticed that most of them only have around 50-100mg per pill and found out that it is because set regulations from the FDA. I get that too much potassium can be lethal, but I don't understand where the logic in regulating the supplement is, when you could just eat 200 grams of pistachios and get 40 times the amount of a normal supplement dose. Wouldn't that be equally dangerous ? Could you kill yourself if you eat a lot of spinach, pistachios and avocados for example ? [link] [comments]  |
| Posted: 26 Jun 2018 05:10 AM PDT Mammals sweat, pant, roll in mud, or just spend time int the water. Birds don't do any of that except staying in water, and that's a minority that have adaptations to keep water away from their skin, but they are still warm blooded! How do they keep from burning up? [link] [comments]  |
| Posted: 26 Jun 2018 07:26 AM PDT |
| Do fusion reactions take place in gas giants? Posted: 26 Jun 2018 08:00 AM PDT I was reading that the composition of Jupiter is 90% hydrogen and 10% helium. Are hydrogen atoms fused together to make helium atoms? [link] [comments]  |
| Does sleep deprivation effect the brain structurally? Posted: 26 Jun 2018 04:46 AM PDT I was just wondering if prolonged sleep deprivation has an effect on the shape of brain structures. [link] [comments]  |
| Posted: 25 Jun 2018 07:05 PM PDT |
| Why can’t we use vaccines as treatments? Posted: 26 Jun 2018 08:13 AM PDT For example, HPV is preventable by vaccination. However it is not indicated for use once someone has the virus. If someone has the virus, their body's immune system is unable to produce the right antibodies to fight off the infection. Wouldn't a vaccine stimulate the immune system to produce an antibody that could then be used in defence against the live virus? [link] [comments]  |
| Do genetics and inherited traits from parents affect what each individual's fingerprints look like? Posted: 26 Jun 2018 05:48 AM PDT I just read an article a while ago about how there were many different types of fingerprints. Arches, loops, and so on. While reading, it made me think if certain families or groups have similar fingerprints and if your genetics affect the outcome of your unique fingerprint. Like how clans in sweden have dominant trait blondes, or the common "gingers" and "redheads" in scottland. Do we inherit the fingerprint type from our parents? Is it completely up to chance and unique? are some fingerprint types exclusive to a couple of groups in certain areas? [link] [comments]  |
| How do we know from fossils that creatures were mammals? Posted: 25 Jun 2018 11:12 PM PDT I know that from geological features that hint towards a cooler climate, it would make sense that creatures were insulated, but what about something like small mammals found in the late Cretaceous? Hips say a lot about and animal, and I'm not in the business of paleo reconstruction, but is there a difference between mammals, saurischians and ornithischians? And are there any ice age creatures that weren't mammals but also insulated in some way? [link] [comments]  |
| Posted: 26 Jun 2018 03:17 AM PDT Is there a global system that keeps a track of this, or some sort of global collaboration with many groups? Trying to understand how they keep track of everything and how they don't get lost with the amount that's out there. [link] [comments]  |
| Posted: 25 Jun 2018 05:43 PM PDT |
| Posted: 26 Jun 2018 05:04 AM PDT |
| How and why do faraday cages work? Posted: 25 Jun 2018 05:39 PM PDT |
| Posted: 25 Jun 2018 03:44 PM PDT Check out this diagram. https://imgur.com/a/xMWXMyS If light goes from A to B then it will go slower through the glass causing it to bend towards the normal. I noticed that this bent line would be shorter than a line that is drawn straight through the glass with the same angle of entry, and so wouldn't this bent line shorten the trip through the glass? Does this conserve some or maybe all of the total trip time compared to how long it would take light to travel the same distance from A to B without a piece of glass in the way? [link] [comments]  |
| How did canines as we know them develop eyesight? Posted: 25 Jun 2018 08:04 PM PDT Did canines as we know them develop their sense of smell to a point where they didn't need full colour vision or was because of that lack of colour spectrum that they developed their sense of smell? [link] [comments]  |
| Why do clouds sometimes look pink in the evening? Posted: 25 Jun 2018 03:55 PM PDT |
| Do solids have a limiting/extreme value of surface tension? Posted: 25 Jun 2018 08:02 PM PDT Is there a direction in which you can push the surface tension of a liquid far enough that you're basically dealing with a solid (like the way in which infinite viscosity means you're dealing with a solid)? Or, conversely, is there an analogue for surface tension with solids? [link] [comments]  |
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