Does penis size come from your mother’s side? |
- Does penis size come from your mother’s side?
- Do any animals besides humans perform medicine or first aid?
- Are there any insects that can hunt in packs, similar to mammalian predators?
- What causes the film on hot milk?
- While reading BC Science 7 for fun, I realized that the definition of a pure substance is extremely confusing. How do you define a pure substance? (Details in the text)
- Regression Toward the Mean versus Gambler's Fallacy: seriously, why don't these two conflict?
- Most galaxies have a black hole at their centre, does this mean that galaxies form around black holes?
- What are the sleep cycles like for subterranean animals with little to no access to sunlight?
- How do we precisely and accurately measure small things?
- Why is birth control only 99.7% effective?
- Can a kangaroo walk or must it always hop?
- Why armour of different densities is more effective than a thicker single plate?
- In the age of knowing our own DNA, why are there so many significant differences between humans?
- Could a QR code be deciphered without a computer similar to how we deciphered hieroglyphs?
- Can diseases be transmitted during incubation?
- What does "no indication of a nonlinear relation" mean?
- Do we burn more calories if we have a cold?
| Does penis size come from your mother’s side? Posted: 07 Feb 2020 09:42 PM PST |
| Do any animals besides humans perform medicine or first aid? Posted: 07 Feb 2020 06:45 PM PST For instance i know bees and ants will carry their wounded (either away from threats or just in general) but do they try to nurse them back to health or euthanize them? I'm thinking more along the lines of injury than symbiotic cleaning of parasites some fish do. although i'd love to hear all about them too. [link] [comments]  |
| Are there any insects that can hunt in packs, similar to mammalian predators? Posted: 07 Feb 2020 09:23 PM PST Further clarification available about this question, if requested. .. watching a very strange movie, figured it was worth a shot. [link] [comments]  |
| What causes the film on hot milk? Posted: 08 Feb 2020 12:09 AM PST I've noticed that when I heat up milk or another liquid that is mostly dairy it forms a thin film on the surface if it gets hot enough. What causes this and is there a way to prevent it? [link] [comments]  |
| Posted: 07 Feb 2020 07:06 PM PST Original text:
For example, let's take a piece of chocolate made up of 71% cocoa powder, 11% milk, and 18% water. Now, imagine that another piece of chocolate have the same composition. Then a whole supply chain of this chocolate. It is the same throughout. So is everything a pure substance, assuming that there is another thing on Earth(or beyond) with the same chemical composition? Is everything pure? Then we realize that atoms in every sample of matter is made of electrons, protons, and neutrons, which technically means that it isn't the same throughout. Electrons, neutrons, and protons are made of quarks, held together by gluons, so those aren't the same throughout either. Is there such as thing as a pure substance? Are all things pure substances like I suggested in the first argument? Is there nothing such as a pure substance, like in my second argument? Am I overthinking this? Am I going insane and crazy mulling over this? [link] [comments]  |
| Regression Toward the Mean versus Gambler's Fallacy: seriously, why don't these two conflict? Posted: 07 Feb 2020 11:22 PM PST I understand both concepts very well, yet somehow I don't understand how they don't contradict one another. My understanding of the Gambler's Fallacy is that it has nothing to do with perspective-- just because you happen to see a coin land heads 20 times in a row doesn't impact how it will land the 21rst time. Yet when we talk about statistical issues that come up through regression to the mean, it really seems like we are literally applying this Gambler's Fallacy. We saw a bottom or top skew on a normal distribution is likely in part due to random chance and we expect it to move toward the mean on subsequent measurements-- how is this not the same as saying we just got heads four times in a row and it's reasonable to expect that it will be more likely that we will get tails on the fifth attempt? Somebody please help me out understanding where the difference is, my brain is going in circles. [link] [comments]  |
| Posted: 07 Feb 2020 04:54 PM PST Given enough time, will enough matter and stars accrete around a black hole to form a galaxy? [link] [comments]  |
| What are the sleep cycles like for subterranean animals with little to no access to sunlight? Posted: 07 Feb 2020 12:51 PM PST |
| How do we precisely and accurately measure small things? Posted: 07 Feb 2020 05:34 PM PST Like measuring the size of an atom, or a virus, or bacteria. [link] [comments]  |
| Why is birth control only 99.7% effective? Posted: 07 Feb 2020 04:54 PM PST Are the .3% who get pregnant just not taking it correctly and screwing the stats? [link] [comments]  |
| Can a kangaroo walk or must it always hop? Posted: 07 Feb 2020 11:12 AM PST I've always wondered because I've never seen one walk and I've never read anything about being guitar e Hoppers but I've also noticed a few species of bird seem to only hop instead of ever walk. [link] [comments]  |
| Why armour of different densities is more effective than a thicker single plate? Posted: 08 Feb 2020 03:42 AM PST Remembering early college physics the reasons is that it causes the projectile to tumble. Which breaks the jet of a shaped charge warhead or shatters a kinetic energy penetrator. I need to know the reasons why the tumbling happens. The differing densities cause acceleration and deceleration. Right? a=F/DV. Presuming volume remains constant. But E=DVv2/2. So reduced density should expend less energy. Didn't post flair earlier, reposted with it. [link] [comments]  |
| In the age of knowing our own DNA, why are there so many significant differences between humans? Posted: 07 Feb 2020 04:28 PM PST Many people have already had their DNA genotyped by various companies like 23 and Me. A lot of my friends have theirs and I've been curious about all the raw data we get access to. I realize that we are in no way family related but when comparing things we should have a lot more in common as humans, I still notice a lot of differences. For instance, I was curious about GRID2, a set of genes on chromosome 4 related to motor control. These can be found in mice as well as many other animals. There's about 192 of them all labeled with various SNP numbers. However, very few of mine, about 1 in 10, line up with theirs in terms of SNP number and position. I have a GRID2 gene rs6848132 at genomic position 93241587, my friend doesn't. I assumed we'd have these genes in all the same places but perhaps with different genotypes (i.e. T/T vs A/G) but instead they're entirely missing. Why? What does this mean? [link] [comments]  |
| Could a QR code be deciphered without a computer similar to how we deciphered hieroglyphs? Posted: 07 Feb 2020 05:46 AM PST |
| Can diseases be transmitted during incubation? Posted: 07 Feb 2020 01:49 PM PST |
| What does "no indication of a nonlinear relation" mean? Posted: 07 Feb 2020 01:18 PM PST I was reading a paper about correlations between obesity and different food groups, and a couple of times the words "no indication of a nonlinear relation" came up. What does this mean? It seems pretty vague, and a friend of mine said it sounded like a double negative. I tried asking about this on Quora, but my account got moderated because I'm not using my real name. So I'm asking here. The paper in question is here: https://academic.oup.com/advances/article/10/2/205/5364424 [link] [comments]  |
| Do we burn more calories if we have a cold? Posted: 07 Feb 2020 05:24 AM PST Whenever I get a cold I have it for 1-4 months. I spend about 40-50% of the year constantly sneezing/producing bucketloads of snot. I fill about a trashcan almost daily with tissues from blowing my nose. Since my body wants to protect me during my colds it generates all that snot, or so I've heard. What I'm wondering about my body constantly over producing snot, is that causing me to burn more energy than a healthy individual? I'm assuming if your body is fighting a viral infection it by default requires/burns through more energy compared to a healthy individual. Is the snot production during a cold notabel? I always thought this had to make a huge difference, this snot can't keep coming from nowhere right? [link] [comments]  |
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