If you throw a waterproof speaker under water, and then dive under water yourself, can you hear the sound? |
- If you throw a waterproof speaker under water, and then dive under water yourself, can you hear the sound?
- How difficult is it to provide cell service on underground services such as subways?
- How can we measure light precisely and how can the universe expand?
- Would a spherical shell rotated about 3 orthogonal axes simultaneously feel an evenly distributed outward pressure?
- Does the human sinus cavity hold pressure?
- How evenly distributed are different types of cold virus around the world?
- Could an enclosed vacuum impart sufficient buoyancy to overcome earth's gravity?
- Is there a way to calculate the polarization of atoms in molecules?
- if atoms and particles have "rest mass" or "rest mass energy" when they're moving is their mass different? how does the higgs field relate to rest mass?
- When a flock of birds are flying around together, they seem to all be doing the exact same movements, without an obvious leader. How do they know what they're doing without colliding or moving away from each other?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- What exactly happens when a photon is "absorbed"?
- Why does the zero-point energy of the vacuum not cause a large cosmological constant? What cancels it out?
- If we've only explored something like 5% of the ocean, how do we know The Marianas Trench is the deepest part?
- Is it possible to extract a data series' singal-to-noise ratio, if we don't have any prior information about the shape or magnitute of the signal, and the only thing we know about the noise is that it's completely random (not even a guess about its magnitude)?
- Why do star trails form concentric circles?
- Is it possible for dogs to learn commands in 2 languages?
- How come we don't inject probiotics intravenously?
- Why do some substances (metals, wax, etc.) lose density when heated, whilst others (egg, meat, etc.) tend to solidify?
- What specific equipment would I need to recreate Eddington's 1919 solar eclipse test of Einstein's General Theory of Relativity?
- Explain Gyroscopic Procession? Why 90deg? Why not 45 or RPM dependent?
- How can a single light bulb be controlled by two switches?
| Posted: 23 May 2017 11:35 AM PDT |
| How difficult is it to provide cell service on underground services such as subways? Posted: 23 May 2017 11:18 AM PDT If we can have cell assisted Internet access on above ground services like trains why can we not do the same underground? [link] [comments]  |
| How can we measure light precisely and how can the universe expand? Posted: 23 May 2017 09:08 AM PDT How is it possible that we can measure the speed of light so precisely?? The speed of something can only ve measured in reference to another object, can't we just measure the speed of light in two directions and have the exact speed at which that point in the earth is moving ( C - measured C = speed of that point of earth. Extra question: How is it that the universe is expanding? I have a big theory on this but how is it that we can measure the expansion of the universe?? That doesn't make any sense to me because if the universe is expanding we are also expanding, how can we know that what we percieved as 10 meters is now 20 meters if our instruments for measures also expanded and our own body, mind, eyes, atoms, and even the photons in the universe also expanded? I say this cause scientists say the universe expands faster than the speed of light... Extra extra bonus final boss easy question How can something not pass the speed of light if the momentum formula is f=m.v being f force, m mass and v volume. To move something of 1 kg faster than the speed of light you need more newtons than speed of light, does a newton always take the same energy to achieve or does one newton take more energy in relation to the one that was applied before?? Thanks in advance for clearing my mind! I think a lot about this things but school is shit, I'm 16 and we are learning movement, I wanna learn about plancks not fucking a.t+iv=fv, that's easy boring shit. (Sorry for small rant) Edit: that's my record of internet points in this site, thanks to everyone for answering!!! [link] [comments]  |
| Posted: 23 May 2017 11:01 AM PDT |
| Does the human sinus cavity hold pressure? Posted: 23 May 2017 05:09 AM PDT |
| How evenly distributed are different types of cold virus around the world? Posted: 24 May 2017 02:57 AM PDT |
| Could an enclosed vacuum impart sufficient buoyancy to overcome earth's gravity? Posted: 23 May 2017 09:46 AM PDT Given current material, design and fabrication knowledge, is it theoretically possible that, by incorporating sealed internal chambers into an object's design and printing the object in a vacuum, one could create a sort of "permanent vacuum balloon" that would achieve lift in Earth's atmosphere? [link] [comments]  |
| Is there a way to calculate the polarization of atoms in molecules? Posted: 24 May 2017 02:14 AM PDT Like, calculate at least on a comparable scale the difference in polarization of H2O, NaNO3 and KNO3? [link] [comments]  |
| Posted: 23 May 2017 10:38 AM PDT |
| Posted: 23 May 2017 07:24 PM PDT I don't mean geese or other birds that fly in a "V" shape, going north for the winter. More so birds like swallows and such that hang around suburban areas. I always see them flying together [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 24 May 2017 08:07 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]  |
| What exactly happens when a photon is "absorbed"? Posted: 23 May 2017 05:20 PM PDT |
| Posted: 23 May 2017 06:52 PM PDT |
| Posted: 24 May 2017 05:52 AM PDT |
| Posted: 23 May 2017 11:11 AM PDT |
| Why do star trails form concentric circles? Posted: 23 May 2017 06:38 PM PDT Also, does the star in the centre of the circles change depending on location? It seems counterintuitive that a star only does a set circular path. Even more so that there are points where the star is in the centre, implying the star never changes position. [link] [comments]  |
| Is it possible for dogs to learn commands in 2 languages? Posted: 24 May 2017 05:10 AM PDT |
| How come we don't inject probiotics intravenously? Posted: 24 May 2017 04:37 AM PDT Especially for individuals that have system infections primarily fungal in nature (candida). We know that many cancers are a result of systemic candida. Why would we not inject probiotika intravenously? Ive read research articles where there are pro's and con's but everything is sort of inconclusive [link] [comments]  |
| Posted: 23 May 2017 06:19 PM PDT |
| Posted: 23 May 2017 01:27 PM PDT What kind of star charts, proper telescope, camera equipment, etc. And how much would that all cost to rent or buy? [link] [comments]  |
| Explain Gyroscopic Procession? Why 90deg? Why not 45 or RPM dependent? Posted: 23 May 2017 09:48 AM PDT What the title says, but can someone explain the physics of gyroscopic procession and why it manifests at 90 degrees. Why not rpm dependent (like something rotating REALLY fast would offset at 120 degrees while a slower rotation at 20 degrees? [link] [comments]  |
| How can a single light bulb be controlled by two switches? Posted: 23 May 2017 05:49 AM PDT It seems simple and I'm sure it is, but I can't picture a circuit with two individual switches that can each control a light bulb independently from each other. Think of turning on a light at the top of the stairs and with that switch still closed turning it off at the bottom of the stairs, then somebody else at the top of the stairs turns it back on with the top switch, even though the bottom switch is still turned it off. If there's a simple answer to how this works I'm curious to know, thanks. [link] [comments]  |
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