- AskScience AMA Series: We're Heather Job, Corinne Drennan, Jonathan Male, and Yangang Liang from the Pacific Northwest National Laboratory. We use robots to advance energy storage and bioenergy, helping to speed up discoveries. National Robotics Week is April 3-11, help us celebrate. AUA!
- How is the ion H- created?
- Why is the rectus abdominus split into “packs”? Why aren’t they just one big muscle? It doesn’t seem that people with four packs, eight packs, or uneven abs have more or less mobility in the abs, so why are they split anyways?
- Do mitochondria undergo secondary endosymbiosis?
- Why is it so rare for planets to have plate tectonics? Will the Earth's plate tectonics "die off" like they did on Venus one day?
- Does Dark Matter make black holes grow faster?
- How does global warming cause sea levels to rise if water expands as it freezes?
- How are false positive lateral flow tests possible?
- Why are earthquakes more frequent in the Asia/Pacific region, and larger in magnitude than earthquakes in the Europe/Africa region?
- How does the cell divides in prokaryotes if there are no centrioles that divided the chromosomes in the initial stages?
- How does grain size affect the rate at which sedimentary rock forms?
- Are cubes and spheres homeomorphic?
- How would increasing minimum wage help people?
- Does activation energy actually change when a reaction goes to completion?
- Is childhood trauma a causal factor in future same-sex attraction and/or relationships?
| Posted: 06 Apr 2021 04:00 AM PDT Domo arigato, Mr. Roboto! Hey Reddit, happy National Robotics Week! These days, robots are not just fodder for 1980s Styx songs. Nor are they always famously featured in TV shows or movies, like Rosie from The Jetsons. At the Pacific Northwest National Laboratory, robots are the workhorses that help our scientists advance energy storage and bioenergy research. For example, robotic platforms are integral to helping us investigate and develop materials for energy storage applications to bolster modernization of the nation's grid. These robotic partners help our scientists do more experiments with significantly lower labor and material costs than if conducted manually. They also allow us to effectively test formulations - literally thousands of them - for the most optimal materials conditions. In the bioenergy realm, robots housed in our High Throughput Center handle routine and repetitive tasks and empower our researchers to investigate materials while accelerating understanding and production of biofuels and bioproducts. With the robots' help, multiple experiments can run in parallel, helping us perform hundreds more experiments than with manual methods. One catalyst testing instrument can reduce four months of research to just two weeks. Additionally, one sample preparation robot can produce more than 200 formulations in a single day, something that would take a researcher a full week to do - not to mention keeping track of it all, often with greater accuracy and precision, while avoiding repetitive strain injury. Our research in grid energy storage and bioenergy is typically supported by the U.S. Department of Energy's Office of Electricity and Bioenergy Technologies Office, respectively. We "bot" you think all this robot talk is cool! We sure do. Come ask us questions about our cool energy storage and bioenergy breakthroughs and how our robots are helping. We will be back at noon PDT (3 PM ET, 19 UT) to answer your questions! Username: /u/PNNL [link] [comments]  |
| Posted: 05 Apr 2021 01:04 PM PDT Hello everyone, I wanted to know how a hydrogen atom, with one proton and one electron, with a net charge of zero, and a spherically symmetrical charge distribution (1s), could attract another electron in order to become the ion with net charge -1e. The question is about how the ion is created. I can't understand what causes a free electron to bind into a neutral hydrogen atom in order to make a ion with net charge -1e. From what I know, a spherically symmetrical charge distribution with net charge zero would not produce a resulting electrical field to attract the free electron in the first place. What is happening here? Thanks for the attention. [link] [comments]  |
| Posted: 05 Apr 2021 08:37 PM PDT |
| Do mitochondria undergo secondary endosymbiosis? Posted: 05 Apr 2021 10:02 AM PDT I've frequently read about chloroplasts undergoing secondary endosymbiosis, but not mitochondria. I've tried looking it up but I couldn't really find anything explaining why this would be the case. Is it just because mitochondria were incorporated so early into the eukaryotic lineage, that pretty much every eukaryote has one? And so there isn't a need to grab one from another eukaryotic species? [link] [comments]  |
| Posted: 06 Apr 2021 02:42 AM PDT Title. This kind of stuff seems very important to the development on life on earth and it puzzles me why it's such a rare trait in terrestrial (ie non-gaseous) planets. Also why do plate tectonics even die off? edit: also sorry for repost, i forgot to flair [link] [comments]  |
| Does Dark Matter make black holes grow faster? Posted: 06 Apr 2021 02:14 AM PDT I understand that there is 4 or 5 times more Dark Matter than regular baryonic matter and it only interacts gravitationally. Wouldn't that mean that black holes could capture Dark Matter and since there's so much more of it, would that make black holes grow 4 or 5 times faster than expected? [link] [comments]  |
| How does global warming cause sea levels to rise if water expands as it freezes? Posted: 06 Apr 2021 05:10 AM PDT Not denying global warming or rising sea levels, but I read in another thread that when water freezes into ice it expands by 5-10%, so how does ice turning into water expand it more than it initially was and take up more space? Shouldn't it shrink instead as it melts? I don't understand the science. [link] [comments]  |
| How are false positive lateral flow tests possible? Posted: 05 Apr 2021 08:08 AM PDT The rapid lateral flow tests, from my understanding, detect fragments of the virus. If no fragments of the virus are present (i.e. you are in fact negative for covid) then how can a test possibly show a false positive result? [link] [comments]  |
| Posted: 06 Apr 2021 01:16 AM PDT |
| Posted: 05 Apr 2021 06:06 PM PDT |
| How does grain size affect the rate at which sedimentary rock forms? Posted: 05 Apr 2021 09:28 PM PDT I understand that sedimentation rate is an important tool in determining the age of rock strata, but not how that rate is affected by grain size. Do different grains from different sources speed up or slow down the rate of deposition and sedimentary rock formation? [link] [comments]  |
| Are cubes and spheres homeomorphic? Posted: 05 Apr 2021 12:20 PM PDT My first inclination was to think that sharp edges are discontinuities and that they wouldn't be allowed, but it seems like you should be able to get arbitrarily close to said edge, and that all points in the neighborhood of the discontinuity would be in the same neighborhood before and after the transformation. I guess the broader question is, do homeomorphic transformations forbid any actions other than adding/removing holes, and are they actions that can be understood by the layperson? [link] [comments]  |
| How would increasing minimum wage help people? Posted: 05 Apr 2021 07:22 PM PDT I was told to post this from r/nostupidquestions and think I may get some better answers here. Let's say the whole minimum wage of the US is $7.25 and hour. Now if this gets increased to $15 an hour, I guess, wouldn't all the people who made $15 be mad because they are now being paid minimum wage. Then they get their wages increased, but then the people who make more than them want higher wages then it keeps going. Wouldn't this cause insane amounts of inflation and make us have the same problem later down the line. Also, if minimum wage was increased, why wouldn't business just increase prices, or rent/mortgage costs just be increased to compensate for the higher minimum wage? [link] [comments]  |
| Does activation energy actually change when a reaction goes to completion? Posted: 05 Apr 2021 09:48 AM PDT If you look at a Gibbs free energy graph of a reaction at completion the activation energy of the products is equal to the reactants. Is this indicating that there is an actual change in needed activation energy or is it a better way to interpret this is that more products mean more products closer to the origianal activation energy. [link] [comments]  |
| Is childhood trauma a causal factor in future same-sex attraction and/or relationships? Posted: 05 Apr 2021 05:45 PM PDT I found this paper on childhood trauma as a causal factor in future same-sex attraction/ relationships and was wondering if you know if these findings are common in the literature or if the study happens to have some methodological errors. [link] [comments]  |
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