How do CO2 scrubbers work? |
- How do CO2 scrubbers work?
- Why do we use three phase instead of two phase?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- Do leaves keep photosynthesising after the fall of the tree if they are still green?
- How does CRISPR target specific genes?
- If a object perfectly encircled a source of gravity, equidistant on all sides, would it ever fall in?
- Why are the elements between polonium and actinium (84-89) so much less stable than heavier elements?
- Does atmospheric pressure affect synaptic re-uptake of neurotransmitters?
- Why doesn't plants seem to have an age limit?
- When birds migrate in a V formation, does the same bird always lead?
- If the moon was stationary, would it “fall” towards the Earth at 9.8 meters per second?
- A feather and a hammer fall at the same rate. Wouldn't this be false at larger scales?
- What was the cause of the glaciation at the end of the Ordovican era?
- What specifically is a dirac sea?
- Do Bones Get Stronger Through Constant Damage?
- I’m aware that radiation exposure can cause genetic mutations within animals and humans. However I’m unsure about plant life... can someone please tell me what sort of an affect high radiation exposure has on flora ?
- Are multivitamins effective at correcting vitamin deficiencies?
- What's the difference between a Polypeptide, a Subunit, and a Protein Domain?
- Can a liver from an organ donor be shared and transplanted into two new recipients?
- How do computers know what to do with the ones and zeroes? And how are different computing languages implemented?
- Sunrise/sunset times: why don’t they get later at same rate as we approach the solstice?
| Posted: 27 Nov 2019 03:58 AM PST |
| Why do we use three phase instead of two phase? Posted: 26 Nov 2019 02:20 PM PST I understand why we use three phase electricity instead of 4,5,6 etc but why don't we use 180 degree shifted two phase systems? Thanks in advance [link] [comments]  |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 27 Nov 2019 07:09 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Do leaves keep photosynthesising after the fall of the tree if they are still green? Posted: 26 Nov 2019 05:04 PM PST A few weeks back I got curious and read an article about what frequencies of light plants use in photosynthesis and where that evolved from. With fall coming ever so slowly to my home in Denton Texas I've noticed many of the leaves i see on the ground are still green and so presumably still absorbing those same frequencies of light they use in photosynthesis. Does this mean that these leaves are still, if only partially, photosynthesising or are they just holding on to the chlorophyll? [link] [comments]  |
| How does CRISPR target specific genes? Posted: 26 Nov 2019 08:50 PM PST How does CRISPR technology target one specific gene out of the roughly 30,000 genes in the human body? I just can't wrap my mind around how this is possible. And in my research and I can't seem to find a straightforward answer. [link] [comments]  |
| Posted: 26 Nov 2019 05:59 PM PST I had this thought when reading about stellar constructs. Say I build something like a Dyson sphere, if it encompasses the Star perfectly and on all sides was equidistant, if it started to drift, wouldn't the stars gravitational pull slowly correct it again to be equidistant? [link] [comments]  |
| Posted: 26 Nov 2019 12:18 PM PST It seems like there's a gap where isotopes with mass numbers around 210-220 where everything is ridiculously unstable. See this table and the circled area. What causes that massive dip in instability? It's like there should be some stable isotopes in this area but there aren't. I'm guessing this has something to do with these being just after lead which has a closed proton shell in the nucleus. But if that is the case why is bismuth also (mostly) stable? And why does it not happen to elements after tin too? EDIT: This answers the question https://www.quora.com/Why-are-elements-84-89-so-unstable-Uranium-and-Thorium-are-so-much-more-stable-despite-being-of-higher-atomic-number [link] [comments]  |
| Does atmospheric pressure affect synaptic re-uptake of neurotransmitters? Posted: 26 Nov 2019 02:41 PM PST I've noticed a personal correlation between how I feel and the local atmospheric pressure reported on https://www.wunderground.com/. Low pressure seems to correlate with a high-energy, almost manic, state of mind, whereas high pressure seems to be often accompanied by lethargy. This could simply be correlation and not causation, or some kind of placebo. But I was just curious whether there are any studies on the effects of ambient pressure on synaptic function. [link] [comments]  |
| Why doesn't plants seem to have an age limit? Posted: 26 Nov 2019 09:41 AM PST I have the impression that plants have no built-in age limit like humans and many animals. If perfect conditions persist indefinitely, it looks like plants can also live indefinitely. I am primarily thinking of trees, but I've read about herbaceous plants that can re-sprout annually, apparently without limits. In humans I've been told that telomeres partly determine the life-span. They reduce in length every cell division, and when worn away, genetic material deteriorate from the edges of the chromosomes. Does plant chromosomes have telomeres? How is genetic material preserved in plants for such long time periods? Does the age of (viable) seeds determine life-span of plants? Some seeds may stay viable for decades and longer, are there any notable differences between two individuals of a species who have sprouted from very differently aged seeds? [link] [comments]  |
| When birds migrate in a V formation, does the same bird always lead? Posted: 26 Nov 2019 01:55 PM PST |
| If the moon was stationary, would it “fall” towards the Earth at 9.8 meters per second? Posted: 26 Nov 2019 10:07 PM PST |
| A feather and a hammer fall at the same rate. Wouldn't this be false at larger scales? Posted: 26 Nov 2019 09:48 PM PST Galileo posited that objects fall at the same rate regardless of their mass. But if we were to scale this up to planetary size, for example; The Earth, The Moon, and an Asteroid, this shouldn't hold up. If we "drop" the Moon onto the Earth from a standstill, shouldn't it hit the Earth quicker than an astroid dropped from the same distance, due to the fact that the Moon is also pulling the Earth toward itself? [link] [comments]  |
| What was the cause of the glaciation at the end of the Ordovican era? Posted: 26 Nov 2019 12:53 PM PST There isn't really a lot to add to the question. It's self explanatory. There was an ice age in the late Ordovican period. How did the ice age happen? Did the poles shift? Also did it continue throughout the early Sulurian era? How did it end? [link] [comments]  |
| What specifically is a dirac sea? Posted: 26 Nov 2019 08:29 AM PST |
| Do Bones Get Stronger Through Constant Damage? Posted: 26 Nov 2019 09:52 AM PST I've seen Shaolin monks been stricken with sticks to strengthen their bones. Does this much damage actually promote bone growth when done multiple times a week, or does it do more harm than good? How much is overdoing it and does it work for muscles as well? [link] [comments]  |
| Posted: 26 Nov 2019 02:23 PM PST |
| Are multivitamins effective at correcting vitamin deficiencies? Posted: 26 Nov 2019 06:23 AM PST Critical care RN and consumer here. Routinely, I give PO multivitamins (usually through a DHT/NG/OG/PEG) to my patients and take a "One A Day" vitamin myself. My question is, does the multivitamin actually work at correcting/maintaining adequate (healthy) levels in the body? I know that it's a supplement (not medication), therefore it's not regulated by the FDA and I know that problems with absorption/distribution can be a factor. But, I haven't been able to find any papers or reviews providing data on whether or not these multivitamins work in a perfectly healthy human. Is it worth taking these vitamins? Do they actually do anything? [link] [comments]  |
| What's the difference between a Polypeptide, a Subunit, and a Protein Domain? Posted: 26 Nov 2019 04:47 PM PST I've looked through a few different textbooks, and they seem to use them interchangeably, but I've been told they're very different. My understanding is that a polypeptide is a bunch of amino acids that are linked together, functional or not. When multiple polypeptides are combined to form a protein, each individual polypeptide is called a subunit. Where does Domain fall into this? [link] [comments]  |
| Can a liver from an organ donor be shared and transplanted into two new recipients? Posted: 26 Nov 2019 09:12 AM PST |
| Posted: 26 Nov 2019 12:46 PM PST |
| Sunrise/sunset times: why don’t they get later at same rate as we approach the solstice? Posted: 26 Nov 2019 07:21 AM PST Where I live, sunset is now about as early as it's going to get, and sunrise will continue getting later right up to December 21st. Why the variance? [link] [comments]  |
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