How do the energy economies of deciduous and coniferous trees different? |
- How do the energy economies of deciduous and coniferous trees different?
- How do heat shield tiles work? Why are they black instead of white or shiny?
- How long do termite mounds take to build? How do they get bigger if the termites are never on the outside?
- How are "unknown" viruses causing illness in the human body detected and indentified?
- How pancreas cells feels level of glucose?
- Are we born with ideas of what smells good and what smells bad or do we learn that at a very young age?
- Why do the rings of a planet tend to have a large variety of different colors and shades?
- Why do urinary tract infections sometimes cause psychosis in the elderly?
- At around what age do babies or toddlers start recognising people they only see occasionally?
- What is the current state of CO2 removal using direct air capture?
- Science Question: Combustion in space?
- Does physical exercise before a test increase test scores?
- When a flower is growing what determines what color the flower will be?
- I just read about 'superionic ice' being added to its over a dozen forms. Is ice/water unique to having all these variations?
- Is nuclear graphite radioactive?
- What is the best recipe for a very bouncy rubber ball? What makes a bouncy vall elastic on a molecular level?
- How is polyvinylalcohol (PVA) made into dish/laundry pods?
- What makes one allele dominant and one allele recessive?
- When a doctor gives you a specific percentage (like there’s a 10% possibility that you will be cured), what is that percentage based on?
- Can or do we think with the 'brain' in our stomach(enteric nervous system)?
- Do moving plants (like venus fly trap) have muscle fibers? Do they get the same benefit from excersize as mammals do?
- What statistical evidence for telepathy is Alan Turing referring to in his "Turing test" paper?
- Why does light bend when refracting?
| How do the energy economies of deciduous and coniferous trees different? Posted: 09 May 2019 07:33 AM PDT Deciduous trees shed and have to grow back their leaves every year but they aren't always out-competed by conifers in many latitudes where both grow. How much energy does it take a tree to re-grow its leaves? Does a pine continue to accumulate energy over the winter or is it limited by water availability? What does a tree's energy budget look like, overall? [link] [comments]  |
| How do heat shield tiles work? Why are they black instead of white or shiny? Posted: 09 May 2019 07:31 AM PDT I would expect a heat shield tile (such as those found on the bottom of the space shuttle, or around the engines of the Dragon spacecraft) to look more reflective if their job is to repel heat. How do they work? [link] [comments]  |
| Posted: 09 May 2019 04:23 PM PDT |
| How are "unknown" viruses causing illness in the human body detected and indentified? Posted: 09 May 2019 07:32 PM PDT |
| How pancreas cells feels level of glucose? Posted: 09 May 2019 11:03 PM PDT How pancreas cells feels level of glucose in blood, for producing insulin or glucagon? [link] [comments]  |
| Posted: 09 May 2019 03:15 PM PDT I know that smell is very subvective, however most of us can all agree that, for exemple, trash smells bad and fruits smell good. This is what I am speaking of, do we have any baseline for smells or do we learn from scratch when we are born? [link] [comments]  |
| Why do the rings of a planet tend to have a large variety of different colors and shades? Posted: 09 May 2019 07:56 PM PDT Ringed planets a large array of differently-colored segments of the rings as opposed to one "blended" color for the entire ring, this has interested me for ages and I can't find out why this is. Thanks in advance! [link] [comments]  |
| Why do urinary tract infections sometimes cause psychosis in the elderly? Posted: 09 May 2019 02:48 AM PDT |
| At around what age do babies or toddlers start recognising people they only see occasionally? Posted: 09 May 2019 09:10 AM PDT Since he's been born, I see my nephew every few months but when I do see him, I spend a decent amount of time with him, a weekend at least. I am never sure if he remembers me from the last time or not. I spent Christmas with my fam, including him of course and he was 21 months at the time. Now he's a little over two and I have just seen him again. At this age is he able to remember me from spending time with him at Christmas? [link] [comments]  |
| What is the current state of CO2 removal using direct air capture? Posted: 09 May 2019 03:15 AM PDT I have a lot of questions about removing CO2 from the environment, but let's focus on this one:
Additional questions:
When I google, I get some company websites, so at least it seems profitable/a good story for investors, but that does not tell me much about the future of these technologies. Looking forward to your insights :) [link] [comments]  |
| Science Question: Combustion in space? Posted: 09 May 2019 09:10 AM PDT Okay. So. In space, there is very little gravity, meaning that things are essentially weightless. That includes liquids, like water. So. That means that other liquids, like Gas or Alcohol are able to do the spherical floating thing too, right? And I understand that it's not the gas/alcohol itself that's flammable, it's the fumes. So I guess what I'm asking is:
I know, this sounds like a pyro question. And it is. But my friends and I have been wondering this legit since Freshman year of HIGHSCHOOL. Our current hypothesis is: If the substance is in an area that contains air, and a flame is able to start combustion, there would be not much of a reaction. Just a burning ball of fire floating in space. Keep in mind that none of us are science majors here, so that's why I bring it here to see what the masses on Reddit are able to figure out. Thanks in advance! [link] [comments]  |
| Does physical exercise before a test increase test scores? Posted: 09 May 2019 10:51 AM PDT |
| When a flower is growing what determines what color the flower will be? Posted: 09 May 2019 06:35 PM PDT |
| Posted: 09 May 2019 08:23 AM PDT |
| Is nuclear graphite radioactive? Posted: 09 May 2019 10:50 AM PDT I just saw an episode of the new TV series "Chernobyl", and in the show they depict firefighters being irradiated by graphite blocks strewn across the ground. Obviously these were originally inside the core, but with my limited understanding of how reactors work, I don't see why they would be radioactive. Is graphite not inert? And are there other parts of a nuclear reactor, besides the fuel, which are also radioactive? [link] [comments]  |
| Posted: 09 May 2019 03:09 PM PDT |
| How is polyvinylalcohol (PVA) made into dish/laundry pods? Posted: 09 May 2019 06:58 PM PDT I've tried googling and unfortunately I just get articles about the tide pod challenge. I'm curious how the material is developed and if it has any negative qualities/impacts. Thank you so much! [link] [comments]  |
| What makes one allele dominant and one allele recessive? Posted: 09 May 2019 07:55 AM PDT I know that dominant alleles are the ones that get expressed, but what is physically different about dominant alleles compared to recessive alleles? [link] [comments]  |
| Posted: 09 May 2019 06:26 PM PDT When a doctor gives you a specific percentage (like there's a 10% possibility that you will be cured), what is that percentage based on? Is it based on anything or do they just kind of...guesstimate? [link] [comments]  |
| Can or do we think with the 'brain' in our stomach(enteric nervous system)? Posted: 09 May 2019 08:37 AM PDT |
| Posted: 09 May 2019 06:17 AM PDT |
| What statistical evidence for telepathy is Alan Turing referring to in his "Turing test" paper? Posted: 09 May 2019 02:07 AM PDT In his paper "Computing Machinery and Intelligence", which introduces what is now known as the Turing test, Alan Turing discusses nine potential objections as to why one might reject the proposed "imitation game" as a measure of whether machines can think. The last of these objection is "The Argument from Extrasensory Perception". The following is the first paragraph under that heading: I assume that the reader is familiar with the idea of extrasensory perception, and the meaning of the four items of it, viz., telepathy, clairvoyance, precognition and psychokinesis. These disturbing phenomena seem to deny all our usual scientific ideas. How we should like to discredit them! Unfortunately the statistical evidence, at least for telepathy, is overwhelming. It is very difficult to rearrange one's ideas so as to fit these new facts in. Once one has accepted them it does not seem a very big step to believe in ghosts and bogies. The idea that our bodies move simply according to the known laws of physics, together with some others not yet discovered but somewhat similar, would be one of the first to go. I think it's safe to say that telepathy and ESP in general is not taken seriously nowadays within the scientific community, but if Turing is to be believed this doesn't necessarily seem to be the case around 1950 when his paper was published. Unfortunately he doesn't explicitly point to any studies, which led him to make such a statement. [link] [comments]  |
| Why does light bend when refracting? Posted: 09 May 2019 06:12 AM PDT I've read and understood many explanations, but which of them is correct? Is it because light takes the path that requires the least energy to traverse (Fermet's principle), and so bends closer to the normal so that it exits quicker? Wouldn't that only actually mean it exits quicker if the medium it enters is a certain shape? Another thing I read said that it's because one part of the wave enters and slows down first, meaning that the wave will bend? But then why would light slow down? Is it because of the electromagnetic interference of the atoms in the medium? I just need some clarification, thanks. [link] [comments]  |
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