- AskScience AMA Series: I'm Dr. Richard Johnson, a professor of medicine, clinician and researcher. I specialize in metabolic syndrome and obesity, and my latest research shows that nature wants us to be fat. AMA!
- Is there any other place in our solar system where you could see a “perfect” solar eclipse as we do on Earth?
- Really odd one, but can humans produce sounds that they cannot hear? So above the Hz that a human can hear but a cat, for example, could?
- Is there any proof that foods grown with organic pesticides are "healthier" to consume than regular non-organic pesticides?
- Is escape velocity the same radially and tangentially?
- Research has proven that processed meats cause cancer, this includes salting, fermenting & pickling the meat. Why arn't processed vegetables just as dangerous?
- Can myopia be reversed? Has there been any recent breakthroughs beyond LASIK?
- What are the chances of Omicron reinfection and how severe is it compared to the original infection?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- Are There Areas With Increased Incidents of Neurological Disorders?
- Can the earth's rotation generate electricity?
- Why does dew point temperature decrease with altitude?
- Idk if this counts, but why are variables with negative/fractional exponents not considered polynomials?
- Why are different brain structures associated with different functions?
- Why does the second dose of COVID vaccine usually have a longer period of side effects?
- Is mantle magma heterogeneous?
- Inside a carburetor, why does the jet spew a droplet of fuel before the intake stroke?
- Do pheromones cause the same responses in homosexual humans/mammals?
- When people get shot and their intestines are damaged, how do they eat and how do the intestines heal?
| Posted: 28 Apr 2022 04:00 AM PDT Hi, Reddit. I'm Dr. Richard Johnson, a professor of medicine specializing in renal health and hypertension at the University of Colorado School of Medicine. I'm also an adjunct professor at the University of Florida. I'm board certified in internal medicine, infectious diseases and kidney disease. For more than 20 years, I have investigated the impact of sugar, especially fructose, on the human body and how we process it. I recently wrote Nature Wants Us to be Fat, a book outlining why evolution has programmed us to overeat on the promise that we will lose weight during lean times. However, it's no longer feast or famine - it's just feast. My research reveals that we, as humans, all have a 'survival switch' that protects against starvation, but it's now stuck in the 'on' position. Prior to my most recent book, I also authored, The Sugar Fix (2008) and The Fat Switch (2012). I've had the pleasure of lecturing in more than 40 countries and have been funded by the National Institutes of Health. So, with that:
More about me: I'll be joining you all at 10AM MT (12 ET, 16 UT), AMA! Username: /u/rickjohnsonmd [link] [comments] |
| Posted: 27 Apr 2022 07:51 AM PDT I know that a full solar eclipse looks the way it does because the sun and moon appear as the same size in the sky. Is there any other place in our solar system (e.g. viewing an eclipse from the surface of another planet's moon) where this happens? [link] [comments] |
| Posted: 27 Apr 2022 08:51 AM PDT |
| Posted: 28 Apr 2022 08:07 AM PDT |
| Is escape velocity the same radially and tangentially? Posted: 28 Apr 2022 07:12 AM PDT Say I was on the surface of the moon (because I want to avoid atmospheric effects) and I fired a gun. Would it be easier for the bullet to escape if I fired it at the horizon or if I fired it straight up? [link] [comments] |
| Posted: 28 Apr 2022 06:23 AM PDT |
| Can myopia be reversed? Has there been any recent breakthroughs beyond LASIK? Posted: 28 Apr 2022 05:33 AM PDT Growing up, I always had extremely fine vision. Never needed to squint at a blackboard or anything despite having a genetic predisposition for developing poor eyesight between ages 8-16. I am 28 now and I noticed a few years ago that I had to be within about 10-15 feet to read off a license plate as it grew too blurry otherwise. Then I noticed I couldn't tell how many sprockets a car's wheel had. (Sprocket may not be the wright word but whatever you call the things between the outside of the wheel and inside.) Some days my vision is good, some days it is worse. It may be due to the fact that I am almost constantly using a screen. Wake up, check phone. Watch TV. Play on my laptop while at work. Get home, play XBox for 6 hours. Rinse and repeat. Whenever I take a break from screens (i.e. go for a long walk in the park), my vision is better the following day. tl;dr I want to restore my vision to how it was before. I usually think "okay, I can still see pretty well" but then when I put on glasses, I'm like, "holy shit! it's like the world is suddenly in HD!" What can I do to improve my vision, and will there ever be a way to reverse vision erosion beyond getting surgery? [link] [comments] |
| What are the chances of Omicron reinfection and how severe is it compared to the original infection? Posted: 28 Apr 2022 04:05 AM PDT |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 27 Apr 2022 07:00 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary 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] |
| Are There Areas With Increased Incidents of Neurological Disorders? Posted: 27 Apr 2022 12:06 PM PDT I work at a clinic and we always have to ask where the patient grew up and the place of birth, however I have no data to put that information into context. Are there any cities other than Flint, Michigan and underdeveloped nations that are a red flag to certain disorders/ exposures? [link] [comments] |
| Can the earth's rotation generate electricity? Posted: 27 Apr 2022 07:05 AM PDT This question touches upon physics and earth/planetary science... Since we know: - the earth has magnetic properties - the earth spins on its N/S axis Could a large piece of copper metal coil, perhaps connected to a space station, rotate the earth along the N/S plane and thus generate electricity passively? [link] [comments] |
| Why does dew point temperature decrease with altitude? Posted: 27 Apr 2022 03:15 PM PDT I'm having a hard time finding an explanation for dew point lapse rate (Tdp decreases 2C per 1km of altitude gain). [link] [comments] |
| Posted: 27 Apr 2022 06:30 PM PDT |
| Why are different brain structures associated with different functions? Posted: 27 Apr 2022 09:42 AM PDT I'm starting my PhD in clinical psychology studying neuropsychology this fall and I've been getting interested in learning some functional neuroanatomy before I begin. One thing I've found particularly difficult to wrap my head around is the functions of brain structures in relation to each other, something I know is not unique to me. That being the case, I was wondering if anyone could explain to me the WHY of neuroanatomical function. WHY is the hippocampus so associated with memory? Is it something unique to its place in the brain, it's connections, or it's unique physiology? Or broca and wernicke's areas, WHY do they perform their unique functions in speech? Again is there something about the unique connectivity between brain regions that allows for this specificity of function or is it something else? [link] [comments] |
| Why does the second dose of COVID vaccine usually have a longer period of side effects? Posted: 27 Apr 2022 10:36 PM PDT The 1st dose and 2nd dose are completely the same. The immune system is trained to deal with the vaccine after the 1st dose, therefore the body will trigger a stronger immune response upon detecting the 2nd dose. However, shouldn't that result in the body clearing the 2nd dose at a much faster rate? [link] [comments] |
| Is mantle magma heterogeneous? Posted: 27 Apr 2022 09:44 AM PDT Iike seawater? Or more heterogeneous like the crust? [link] [comments] |
| Inside a carburetor, why does the jet spew a droplet of fuel before the intake stroke? Posted: 27 Apr 2022 09:24 AM PDT I have just watched the video about how carburetors work from SmartEveryDay. In the video we can clearly see a drop of fuel is spewing out of the jet in the carburetors before the intake stroke of the engine. Why does this happen? Is it because if momentum? [link] [comments] |
| Do pheromones cause the same responses in homosexual humans/mammals? Posted: 27 Apr 2022 08:48 AM PDT I'm in no way informed enough to even ask this question i suppose. But would a homosexual mammal react the same way to an opposite sex-pheromone as a heterosexual one would? I'm of course inferring that there are homosexual animals, which i do not know if that's the case. [link] [comments] |
| Posted: 27 Apr 2022 03:12 AM PDT |
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