AskScience AMA Series: I'm a geneticist and molecular biologist working in science policy at NIH. Ask Me Almost Anything! |
- AskScience AMA Series: I'm a geneticist and molecular biologist working in science policy at NIH. Ask Me Almost Anything!
- [Biology] Do trees and other plants, like animals, slowly lose the ability to heal quickly as they age?
- Why does this planetary nebula shed material in "jets" pointed in opposite directions rather than shedding in a more spherical, blast-like manner?
- What specific predictions/outcomes/mathematical results do general relativity and quantum mechanics disagree on?
- In my experience and to the best of my knowledge, most lab equipment is made of glass. What is it that is so special about glass that leads to it being so stable when in contact with such a variety of substances?
- What is it about radiation that makes it impossible to retrieve the reactor core from Fukushima? How does it destroy the robots we send to observe the most radioactive parts?
- How are transformers passive devices?
- Rotating masses warp spacetime, is this interaction governed by Newton's 3rd law? More specifically, does the warping of spacetime impart some form of 'friction' or 'drag' on the rotating mass?
- How do we know that the Universe is not already collapsing?
- What is the point of using fuel cells in spacecraft when you can use solar cells?
- Is it possible (in theory) to build a machine that can produce every smell/taste there exists without using anything organic?
- Do cell phones get assigned an IP for every cellphone tower they connect to?
- Would the specific arrangement of protons and neutrons in a nucleus theoretically affect the properties of the atom on a material science/chemistry level?
- Why are men's arms vascular and full of protruding veins but women's arms are generally not so?
- Why is it said that the gravity is the weakest force in the universe? And then why are black holes one of the most powerful things in the universe?
- [Physics] How do "light sails" work?
- Could you actually blow out your neighbors speakers with a CB radio, antenna, and a linear amp?
- I stand on Earth so that Sun is behind me and Moon is in front of me at the same time. How can it be that the Moon is NOT full?
- Why/how does radiation render a robot inoperable?
- Which would be more harmful to the human body, the worlds strongest acid or the worlds strongest base?
- In the video what are the symbols | and > used called, and can you explain how we can prove teleportation is still possible?
| Posted: 07 Feb 2017 05:00 AM PST I am a geneticist and molecular biologist who studied blindness for over a decade and now work in science policy at NIH. Given the tumult of this past two weeks and the fact that I work at NIH, I think it would be prudent to not have my identity attached to anything right now. Ask Me (Almost) Anything! Note: This AMA has been has been verified with the moderators. Our guest will ne joining at 5 PM ET (22 UT). [link] [comments]  |
| Posted: 06 Feb 2017 06:34 PM PST |
| Posted: 06 Feb 2017 10:16 PM PST |
| Posted: 07 Feb 2017 01:41 AM PST I suppose a more general form of this question is, why is there an effort to classify gravity as a fundamental force at all? General relativity doesn't classify gravity as a force, so why does quantum mechanics? At what point does the description of gravity as 'the curvature of spacetime' not work for quantum mechanics? [link] [comments]  |
| Posted: 06 Feb 2017 09:12 AM PST |
| Posted: 07 Feb 2017 06:26 AM PST |
| How are transformers passive devices? Posted: 06 Feb 2017 05:33 PM PST I know that a transformer uses magnetic induction to amplify the amplitude of voltage in AC sine waves. How is energy conserved, if the transformer is a passive device? Where does the energy come from? I know that V =/= E, but it seems to pull these high voltages out of nowhere. [link] [comments]  |
| Posted: 06 Feb 2017 07:15 PM PST |
| How do we know that the Universe is not already collapsing? Posted: 06 Feb 2017 08:01 PM PST I basically understand that: a) the observable Universe is expanding; b) that observable Universe is roughly 13.5 - 14 billion years old; c) that the distance to edge of the observable Universe is approximately 46 billion light years; and d) the light we are observing from the edge of the observable Universe has been traveling for approximately 13.5 billion years. So how do we know that the Universe did not start collapsing 13.5 billion years ago? If the Universe started to collapse would humans be able to observe the same. [link] [comments]  |
| What is the point of using fuel cells in spacecraft when you can use solar cells? Posted: 07 Feb 2017 02:26 AM PST |
| Posted: 06 Feb 2017 10:18 AM PST For example, just like we define colors with RGB - combination of 3 0-255 values which can define "every" color in the visible spectrum. Can we do the same for smell/taste? [link] [comments]  |
| Do cell phones get assigned an IP for every cellphone tower they connect to? Posted: 06 Feb 2017 09:01 PM PST If so, how do they supply enough IP's in really dense populations? Of not, what system DO they use to organize them all. This is my first post on this sub,I hope I formatted it okay. [link] [comments]  |
| Posted: 06 Feb 2017 02:37 PM PST In atoms with higher mass numbers, I would expect that there are multiple stable arrangements that the protons and neutrons could be packed together. I wonder whether the various arrangements would affect the electron densities around the atom, which would affect the chemical properties of that atom. However, I would also expect that our understandings of an element's chemical properties basically represent the collection of the various proton-neutron arrangements that occur in nature. To my knowledge, we do not have the technology to create an atom with a particular proton-neutron arrangement -- much less, a measurable amount of that element with the same exact proton-neutron arrangement in all of its atoms. [link] [comments]  |
| Why are men's arms vascular and full of protruding veins but women's arms are generally not so? Posted: 06 Feb 2017 11:38 PM PST |
| Posted: 07 Feb 2017 03:18 AM PST |
| [Physics] How do "light sails" work? Posted: 06 Feb 2017 11:15 PM PST |
| Could you actually blow out your neighbors speakers with a CB radio, antenna, and a linear amp? Posted: 06 Feb 2017 09:02 AM PST Sounds random, but the first post I ever read on reddit was this one: https://www.reddit.com/r/pics/comments/k62sc/i_feel_bad_for_this_guy/c2ht7kp/ It's about a neighbor blaring their speakers even after being asked to turn them down. The top comment is a suggestion that with a CB radio, CB antenna, and linear amp, you can not only talk through their speakers, but if you played a continuous 6khz tone, could actually blow them out completely. I've wondered ever since if this would actually work or if they were making things up. [link] [comments]  |
| Posted: 07 Feb 2017 01:37 AM PST |
| Why/how does radiation render a robot inoperable? Posted: 06 Feb 2017 11:16 AM PST "The robot is designed to withstand exposure of up to 1,000 sieverts. Based on the calculation of 73 sieverts per hour, the robot could run for more than 10 hours, but 530 sieverts per hour means it would be rendered inoperable in less than two hours." What in particular is designed to withstand radiation? [link] [comments]  |
| Posted: 06 Feb 2017 07:51 AM PST If it matters, lets consider skin contact and if ingested. [link] [comments]  |
| Posted: 06 Feb 2017 05:04 PM PST https://www.youtube.com/watch?v=owPC60Ue0BE is the minutephysics video. I found it pretty interesting i just didn't understand what those symbols meant or were called,im thinking just the quantum mechanics version of ( ). and also i did not quite understand the last part where he explains the proof to why teleportation is still plausible [link] [comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment