Ask Anything Wednesday - Engineering, Mathematics, Computer Science |
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- If a star’s color is determined by it’s temperature (the bluer the hotter) then why aren’t any stars for an example green or purple? (Only red, orange, yellow and blue)
- AskScience AMA Series: I'm Kofi Asante, head of strategy and business development at aerospace startup Elroy Air. AMA!
- How does one die from being hung?
- How does dosing work for daily medications with long half-lives?
- Difference between AstraZeneca and Sinovac Vaccine?
- Why are tritium and deuterium suitable for nuclear fusion? Why not use hydrogen?
- How long has influenza existed?
- The Western Interior Seaway and the implications of Climate change?
- Are inflammasomes present in non-myeloid cell lineages?
- What does F=ma actually mean?
- Why is AC used instead of DC in power transmission?
- How well does the human immune system multitask?
- Why are there deserts in Kenya even though it is along the equator?
- How does 2,4-DNP cause hyperthermia?
- Do mRNA vaccines work on bacterial and other types of pathogens as well as viral pathogens?
- How is hypoxia an important stimulus for erythropoietin secretion?
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 02 Jun 2021 07:00 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science 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]  |
| Posted: 01 Jun 2021 09:26 PM PDT |
| Posted: 02 Jun 2021 04:00 AM PDT Hey, Reddit! I'm Kofi Asante, the head of strategy and business development at aerospace startup Elroy Air. Elroy Air's mission is to improve the quality of life around the world by expanding the reach of express logistics: We're currently building an autonomous vertical take-off and landing system that can deliver 300 pounds of cargo over a 300-mile range. While at Elroy Air, I've helped develop strategic partnerships with NASA, World Economic Forum, Air Force, Embraer, and many Fortune 500 corporations. Prior to being here, I was a part of Uber's Advanced technology strategy group team that launched Uber freight. During my time at Uber freight, I built an Uber entity that I named "Powerloop," which decreases wait time for drivers and enables high utilization for autonomous trucks. The division is now expanding nationwide, enabling drivers to seamlessly "loop" to their next load using their "power" unit. The program has helped thousands of drivers maximize their workday and come home early to their families all at the same time. I currently serve as a venture partner and board member at FVLCRUM Private Equity Funds. I'm also a Venture Fund Advisor to Rackhouse Ventures and a board member at the Tufts Entrepreneurship Center. My ventures both at Uber and Elroy Air have been featured in the Wallstreet Journal, PBS, Techcrunch, Forbes, and Business Insider. Most recently, Elroy Air and I were featured in NOVA PBS' new film "Great Electric Airplane Race," which premiered on May 26. Ask me anything about Elroy Air, my work on "Powerloop," my involvement in "Great Electric Airplane Race," or my passion for science communication. Ask me anything! Username: /u/novapbs [link] [comments]  |
| How does one die from being hung? Posted: 02 Jun 2021 02:29 AM PDT When I was younger, I think I learned that death by hanging (not a native speaker, I'm not sure if this is the right term) consists in breaking the neck or spinal cord by applying a great amount of force on it, which is done by having the entire body suddenly being dropped leading to a lot of tension in the neck. For that reason, I was told that death by hanging was quite immediate. However, I have only heard that version once, other than that I usually hear people saying that being hung would just lead to a death by asphyxiation. That being said, I kind of wonder why would people go as far as finding a way to hang a body when they could achieve the same result (asphyxiation) without having to hang the said body. I have to add that I do not plan on hanging myself or anyone else, I'm simply curious and can't seem to find an actual answer when I look it up. Thank you for your help! [link] [comments]  |
| How does dosing work for daily medications with long half-lives? Posted: 01 Jun 2021 05:46 PM PDT I've noticed that a lot of psychoactive meds that are taken daily (e.g. Zoloft, Wellbutrin, etc.) have elimination half lives well over 24 hours, sometimes closer to 36+ hours. If someone is taking the same dose every 24 hours, would that not lead to a gradual, constant increase in the amount of drug in the body as long as they're taking it? Are there mechanisms that prevent this from happening? Or am I misunderstanding how half life works? [link] [comments]  |
| Difference between AstraZeneca and Sinovac Vaccine? Posted: 02 Jun 2021 07:47 AM PDT |
| Why are tritium and deuterium suitable for nuclear fusion? Why not use hydrogen? Posted: 01 Jun 2021 08:12 PM PDT |
| How long has influenza existed? Posted: 01 Jun 2021 04:40 PM PDT Our toddler had a gastro illness several weeks ago (after an entire year without being sick) and our high schooler just spent the night and day sick - illness that I have attributed to the opening of social interaction. This got me wondering, how did influenza survive before large, inter-connected populations? Has it only been around for a few thousand years? If it survived in animal populations, I imagine those also being relatively small and isolated. How do viruses circulate in these conditions? Long term shedding hosts? Am I underestimating the size and interconnectivity of ancient populations of humans and animals? [link] [comments]  |
| The Western Interior Seaway and the implications of Climate change? Posted: 01 Jun 2021 02:15 PM PDT First time posting here (I think?)! So, I followed the white rabbit on a thought train concerning this. In the late Cretaceous period the continent that we know today as North America was effectively split in half by an ocean known as the Western Interior Seaway, or what is now the Western side of Tornado Alley (I think). This ocean existed because of extremely warm climates that melted the poles to the point that the Arctic Ocean spilled over the continent. My question is, at current (grim) rates of global warming from fossil fuel emissions; along with whatever else might be contributing, would it be possible that humanity would see the resurgence of this ancient sea? Or would it likely remain too slow of a process? Cheers. Edit: Spelling and stuff. [link] [comments]  |
| Are inflammasomes present in non-myeloid cell lineages? Posted: 01 Jun 2021 05:33 PM PDT For example, is the NLRP3 (or another) inflammasome at play in epithelial cells? Interstitial cells? Smooth muscle? Endothelium? [link] [comments]  |
| Posted: 01 Jun 2021 08:17 AM PDT If I push an object of mass 10 kg from rest to 5m/s in 1 second then, the force applied in that second is 50N. Then, for the next 5 seconds, I maintain the velocity of the object at 5m/s then a=0 so is the F 0 even when I am exerting force to maintain the velocity? [link] [comments]  |
| Why is AC used instead of DC in power transmission? Posted: 01 Jun 2021 05:22 AM PDT |
| How well does the human immune system multitask? Posted: 01 Jun 2021 07:35 AM PDT In my country, there is a lot of discussion regarding giving other vaccinations during the days before/after getting the Covid-19 vaccine. One argument that I hear a lot against e.g. giving TDaP right before or after is that if the immune system is "busy" with something, like making antibodies, already, the immune response stemming from the second vaccine will be blunted. But wouldn't this argument then also in general mean that getting sick with something, like a stomach bug, right after a vaccination would affect either how well the vaccine works/how well our body responds to the new invaders? How well does the immune system multitask with "systemic" jobs? [link] [comments]  |
| Why are there deserts in Kenya even though it is along the equator? Posted: 01 Jun 2021 04:22 PM PDT As I understand it, equatorial regions have large amounts of rainfall because of the intense heating and subsequent condensation and rainfall. Most deserts are in the subtropics and near there, but Kenya straddles the equator and still hosts arid regions. What causes this abnormality? [link] [comments]  |
| How does 2,4-DNP cause hyperthermia? Posted: 01 Jun 2021 03:24 PM PDT I understand that DNP causes Hydrogens to move into the matrix of the mitochondria, reducing ATP Synthase's ability to create ATP. However, is the cause for hyperthermia from the increase of glycolysis and fatty acid oxidation, or is it from something else? [link] [comments]  |
| Do mRNA vaccines work on bacterial and other types of pathogens as well as viral pathogens? Posted: 01 Jun 2021 10:25 AM PDT |
| How is hypoxia an important stimulus for erythropoietin secretion? Posted: 01 Jun 2021 01:51 PM PDT My logic is as following but I'm not sure: In hypoxia, demand for oxygen increases in the body which will lead to increase in RBC count to cope with the situation. And since erythropoietin helps in erythropoiesis, hypoxia causes an increase in erythropoietin. [link] [comments]  |
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