When its said that stars orbit the center of galaxies too fast for gravity to hold them, and thus there must be dark matter, is the relativistic mass gained due to their speed accounted for? |
- When its said that stars orbit the center of galaxies too fast for gravity to hold them, and thus there must be dark matter, is the relativistic mass gained due to their speed accounted for?
- Why do lower frequencies seem to travel through materials easier?
- do we actually get vitamin D from the sun, or does sunlight just make it easier for our bodies to absorb the vit. D we get from food?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- Will we ever be able to send probes onto harsh condition planets?
- Whats going on in your brain while you sleep that makes sleep so important?
- How does gamma radiation effect specific elements, and how long does it linger in soil/air/water?
- Can we estimate what the highest surface air temperature could have been during the historically warmer periods, e.g. during Paleocene-Eocene Thermal Maximum?
- What causes the rising bubbles in carbonated drinks and champagne?
- Why does NO (Nitrogen Monoixde) have nitrogen coming before oxygen in the compound? Why not name it Oxygen Mononitride?
- How does fasting affect cognitive functioning over time?
- Why does the wormhole theory exist at all?
- Why do complex numbers always come in pairs?
- How do credit card chips work?
- Are several copies of the same memory stored in the brain?
- The Intel Broadwell-EP Xeon is a processor with over 7.2 billion transistors. How is something with that many parts designed or manufactured?
- Can the fact that time only flows in one direction be derived from general relativity or is it a postulate in the theory?
- Can active noise cancellation damage hearing over time?
- How to Bubbles work? [More Details in Description]
- How long until the New Horizons spacecraft surpasses the Voyager and Mariner spacecraft? Will that happen in our lifetime?
| Posted: 14 Dec 2016 02:08 AM PST |
| Why do lower frequencies seem to travel through materials easier? Posted: 13 Dec 2016 08:00 PM PST You can hear the bass in a song throughout an entire house basically. Why is it that the higher frequencies seem to get lost? [link] [comments]  |
| Posted: 13 Dec 2016 02:43 PM PST |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 14 Dec 2016 07:05 AM PST 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]  |
| Will we ever be able to send probes onto harsh condition planets? Posted: 14 Dec 2016 05:09 AM PST Will it ever be possible for humans to send a probe into say Venus or Jupiter and be able to not only survive but relay video/photos of the event? It would be amazing to see what these extreme planets actually look like on the surface. [link] [comments]  |
| Whats going on in your brain while you sleep that makes sleep so important? Posted: 13 Dec 2016 08:49 PM PST This is more of a neuroscience question, do specific physiological processes take place during sleep that only occur only in a unconscious state? [link] [comments]  |
| How does gamma radiation effect specific elements, and how long does it linger in soil/air/water? Posted: 13 Dec 2016 08:55 PM PST Before I ask at r/chemhelp, thought I'd try here. Writing a science fiction story, that involves societies on Earth with helium-fueled fusion reactors powering virtually all of the giant cities around the globe, and am now researching what would happen if an advanced civilization would cope with a gamma ray burst. Was wondering - would the gamma radiation effect Helium-3 in any way? And while I'm asking that, how would it effect the state of deuterium? One last query on gamma radiation - how long does an effected area stay radioactive after exposure to gamma radiation? [link] [comments]  |
| Posted: 14 Dec 2016 03:59 AM PST |
| What causes the rising bubbles in carbonated drinks and champagne? Posted: 13 Dec 2016 11:45 PM PST |
| Posted: 13 Dec 2016 10:56 AM PST |
| How does fasting affect cognitive functioning over time? Posted: 13 Dec 2016 09:46 AM PST I'm curious about fasting and it's affect on normal cognitive functioning? Evolutionarily wouldn't it be a disadvantage if fasting negatively affecting cognitive functioning significantly? Historically people didn't have as much access to food during winter months and I'm curious about how this affected their day to day lives. [link] [comments]  |
| Why does the wormhole theory exist at all? Posted: 13 Dec 2016 02:39 PM PST When two of my friends were talking about wormholes and i told them there is no evidence at all for wormholes they started talking about how multiple scientists claim they do exist. We all proceeded to look it up and I was correct however I do not understand where the theory even came from. Is the theory that black holes are wormholes and if so how would something that simply has an unimaginable mass in a small space make you transport to a different place in space. Also what made scientists think about such a theory was some anomaly in space observed that suggested the existence of them? Thank you for ur help! :) [link] [comments]  |
| Why do complex numbers always come in pairs? Posted: 13 Dec 2016 01:54 PM PST For example, if we discover the coefficient matrix of a system of differential equations has complex eigenvalues (say a±bi), why do the corresponding eigenvectors also come with conjugates (say {c±di, e})? [link] [comments]  |
| How do credit card chips work? Posted: 13 Dec 2016 02:14 PM PST How do credit card chips work differently than the magnetic strips? Why can the credit card chip not be intercepted by a scammer and be reproduced while the magnetic strip can? [link] [comments]  |
| Are several copies of the same memory stored in the brain? Posted: 13 Dec 2016 09:53 AM PST Is there just one single copy, or are there several. If so, are they all stored in the same hemisphere? [link] [comments]  |
| Posted: 13 Dec 2016 10:44 AM PST So even if there is a machine that quickly place 7.2 billion parts, someone had to say where they go. Even if we accept that this happened over time, the number of transistors added to subsequent models has increased exponentially so designing new ones seems increasingly difficult. Code does quite a bit I'm sure, but then how are they placed? With some kind of template I'd assume, but of course the question is how long does it take to make the template? [link] [comments]  |
| Posted: 13 Dec 2016 12:53 PM PST How does the minus sign in the metric result in time being unidirectional? I was never really satisfied with using the 'entropy always increases' argument in the context of GR. [link] [comments]  |
| Can active noise cancellation damage hearing over time? Posted: 13 Dec 2016 07:29 AM PST It's my understanding that active noise cancellation generates the inverse of an incoming audio wave to cancel out the incoming wave. That would create double the energy passing over the eardrum. However, because the the waves have been cancelled, the eardrum does not vibrate/absorb energy. If that is the case, then how is the energy in the two waves dissipated? [link] [comments]  |
| How to Bubbles work? [More Details in Description] Posted: 13 Dec 2016 06:35 PM PST I simply don't understand the physics of bubbles, why they float instead of immediately falling to the earth. How the bubble maintains its shape, along with why smaller bubbles always seem to be a sphere while larger ones are amorphous blobs. Also why do bubbles look like they collapse in on themselves when they pop instead of explode outward... I just don't understand bubbles, this stuff has been annoying me for a long time. Can someone please explain the inner workings of bubble physics? [link] [comments]  |
| Posted: 13 Dec 2016 08:35 AM PST |
| 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