Does the efficiency or power consumption of electronics change with temperature? |
- Does the efficiency or power consumption of electronics change with temperature?
- AskScience AMA Series: I'm Dr. Haider Warraich, a cardiologist who wrote a new book on humanity's greatest killer: heart disease. Ask me anything!
- Why is the Southeastern US humid despite sharing latitude with arid North Africa?
- Why Do We All Generally Agree On What Creatures Are Cute or Grotesque?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- Do hormones in diet get broken down before they can work?
- Do protist supergroups Excavata and Chromalveolata have cell walls? What type of reproduction do they have? What are their modes of nutrition?
- Why do some drugs work in microgram doses while others need milligrams or more?
- Why does count of RBCs increase during emotional upset ?
- Are hadron collider essentially nuclear fusion reactors?
- How do micro-plastics affect the body when ingested?
- Why do some animals bother storing their urine in bladders and feces in rectums? Why don't all animals just eject their waste immediately?
- Are peripheral and central neurons structurally different?
- How does plasma behave different from each other and also from normal fluid flow?
- Are adhesion zones (aka Bayer's junctions) physiological bacterial features or just fixation artifacts?
- The universe is expanding, and it seems this expansion is accelerating. This is the main argument against the Big Crunch theory. My question is why is it not possible that we are just seeing the first part of the expansion?
- Why don't intestines knot up like earbuds?
- Are histones only present during mitosis?
- What is it about the quality of pitch-shifted audio (e.g. Alvin and the Chipmunks) that makes the human ear able to perceive that it's pitch-shifted, not people singing in a higher/lower key?
- How does the depth of water table affect drainage time? (hydrogeology question)
| Does the efficiency or power consumption of electronics change with temperature? Posted: 14 Aug 2019 01:16 AM PDT I recently have decided to hella overclock a PC I built this year, and someone told me that the better the cooling is on the water cooling I'm going to be using the less potential power consumption there will be. He said the electrical resistance drops with temperature there by decreasing the necessary voltage, and quite possibly allowing for a higher overall overclock speed. Is that true and if so, what is the science behind that? [link] [comments]  |
| Posted: 14 Aug 2019 04:00 AM PDT Heart disease still kills more people than any other disease in the world, yet there are so many myths, misconceptions and misinformation about it. I'm cardiologist Haider Warraich, author of the new book, State of the Heart - Exploring the History, Science and Future of Cardiac Disease (St Martin's Press, July 2019), where I break down the history of the heart, what we know about it today, and what we know about its future study. I write frequently for the New York Times, where you can read my Op Eds. See everyone at 12pm ET (16 UT), ask me anything! [link] [comments]  |
| Why is the Southeastern US humid despite sharing latitude with arid North Africa? Posted: 14 Aug 2019 03:55 AM PDT |
| Why Do We All Generally Agree On What Creatures Are Cute or Grotesque? Posted: 14 Aug 2019 06:53 AM PDT How come as a species we all agree that things like cats, dogs, rabbits or even bats are cute or aesthetically pleasing while things like spiders and angler fish are considered grotesque and ugly. At first I figured it was an evolutionary thing such as an ingrained fear of spiders to keep us from being bit but by that logic we should find felines and canines ugly as they would have been dangerous to use too. Cougars and bears are considered cute. Is it traits that are closely related to us? But what about birds and even snakes being liked? How is it no one ever looks at a camel spider and wants to cuddle it when we can have such differing opinions on colours, architecture and art? [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 14 Aug 2019 08:13 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology 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 hormones in diet get broken down before they can work? Posted: 13 Aug 2019 02:58 PM PDT I've seen many claims about either detrimental or positive effects from consuming hormones as part of your diet. For example, plant oestrogens in soy milk, growth hormones and casein in milk. It seems to naïve me that in principle, all proteins should start to get hydrolysed in the stomach by HCl, pepsin, protease etc. Surely most of it is denatured/hydrolysed in the cooking process anyway! So apart from enzymatic/hormonal action in your mouth, can hormones/enzymes get absorbed and affect you? Would love to hear some science. Cheers, A Chemical Physicist [link] [comments]  |
| Posted: 14 Aug 2019 07:57 AM PDT |
| Why do some drugs work in microgram doses while others need milligrams or more? Posted: 14 Aug 2019 07:50 AM PDT |
| Why does count of RBCs increase during emotional upset ? Posted: 14 Aug 2019 07:49 AM PDT |
| Are hadron collider essentially nuclear fusion reactors? Posted: 14 Aug 2019 07:28 AM PDT |
| How do micro-plastics affect the body when ingested? Posted: 14 Aug 2019 07:26 AM PDT |
| Posted: 14 Aug 2019 06:23 AM PDT |
| Are peripheral and central neurons structurally different? Posted: 14 Aug 2019 05:43 AM PDT Do these neurons just serve different functions due to their location and connections, or is there something structurally different about them? I was reading about hot flatworms can remember things even after their brain is cut off and regrows, so I'm wondering if peripheral neurons could serve the same functions as CNS neurons, or if they are structurally different? [link] [comments]  |
| How does plasma behave different from each other and also from normal fluid flow? Posted: 13 Aug 2019 09:49 PM PDT |
| Posted: 13 Aug 2019 11:18 AM PDT I have a question about bacterial physiology that I haven't been able to find a clear answer to in the literature. Specifically, I am wondering what the current status of the concept of adhesion zones or Bayer's junctions is. These refer to putative sites where the inner and outer membrane of gram negative bacteria are in contact or at least adjacent. My understanding is that between the late 60's and early 90's there was some imaging work and phage-based work supporting the hypothesis, but around 1990 criticism arose that these were artifacts of the chemical fixation methods and not present with cryofixation. I came across this doing some idle research on the mechanisms of chemical competence in E. coli - specifically, in Hanahan's chapter in Escherichia coli and Salmonella (Neidhardt), he suggests that pores formed from these zones of adhesion are a major route for DNA uptake. Following up a little on this, I came across the controversy, but wasn't able to find any resolution. The citing literature is fairly nonspecific and often just cites from the 60's and 70's so I'm not sure if there is a consensus as to whether these are actually existing structures or not. Some references: Bayer's original paper: https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-53-3-395 Critical discussion: Kellenberger 1990 - https://www.ncbi.nlm.nih.gov/pubmed/2201866 Bayer's reply: https://www.sciencedirect.com/science/article/pii/104784779190052X [link] [comments]  |
| Posted: 13 Aug 2019 11:01 PM PDT As far as I understand, in an explosion, the speed increases until there is no more combustible material to combust. Could we not just be in this phase of the explosion that was the Big Bang? I could have completely misunderstood the basic concepts here and I apologise if that is so. Please educate me. [link] [comments]  |
| Why don't intestines knot up like earbuds? Posted: 13 Aug 2019 11:53 AM PDT |
| Are histones only present during mitosis? Posted: 13 Aug 2019 08:44 AM PDT Are histones only present during mitosis? Studying for Biology exam [link] [comments]  |
| Posted: 13 Aug 2019 08:10 AM PDT |
| How does the depth of water table affect drainage time? (hydrogeology question) Posted: 13 Aug 2019 08:38 AM PDT Darcy's law applied to falling head condition appears to indicate that ponded water on the surface would drain more quickly when the water table higher. i.e. nearer to the surface: t = L K ln (H_o/H_t) Where:
But I am told that ponded water would drain more quickly when the water table is lower. What am I overlooking? [link] [comments]  |
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