Is there a reason we want more alcohol once we are buzzed? |
- Is there a reason we want more alcohol once we are buzzed?
- Does the optic disc/optic nerve head (the human blind spot) move when the eye turns?
- How does your tongue know when to swallow the food you're chewing and why does it sometimes get it wrong?
- How can scientists predict there will be a "megaquake" off the coast of North America?
- With quantum mechanics, do particles come 'pre-tangled'? Or can scientists tangle two particles of their choice?
- What do modern mathematicians study?
- When two balls are released on a Newton's Cradle, why is the momentum transferred to the two at the end and not just one (giving it a greater speed)?
- Twin paradox without the turn?
- Is there evidence surgical masks being worn by people who are ill significantly help limit infection of others?
- Ionization by nonuniform magnetic field possible?
- Why is feedforward system in active noise control being susceptible to wind noise a disadvantage?
- Do we see trends/differences in voting populations naming their children after politicians that won their district?
- [Earth Sciences] How does age affect the toxicity of a plant? Are saplings more toxic than their older counterparts, or do plants become more toxic as they age? If it is too difficult to generalize, does bamboo become more or less toxic as it ages?
- If the mass of the sun were doubled (or tripled, etc), would gravity on earth increase? Would I "weigh more" here than I do now despite the mass of earth being the same?
- Does ivy actually hurt a tree by "choking" it, or is that an old myth?
- It's often said that F = ma because force is defined that way. Why, then, can't it be F = m+a or F = (m^2)a?
- What would happen if you shoot neutrons at hydrogen plasma?
- Do large canals connected to oceans affect water levels at all?
- Does a CME (like the one due to hit in a couple days) have any potential effect on the side of the earth in darkness when the waves hit earth?
- How does music get transmitted from our phones to our speakers via Bluetooth or the auxiliary cord?
| Is there a reason we want more alcohol once we are buzzed? Posted: 15 Jul 2017 09:26 PM PDT |
| Does the optic disc/optic nerve head (the human blind spot) move when the eye turns? Posted: 15 Jul 2017 10:24 PM PDT Or does the blind spot stay in the same place no matter where one is looking? [link] [comments]  |
| Posted: 15 Jul 2017 10:28 PM PDT |
| How can scientists predict there will be a "megaquake" off the coast of North America? Posted: 16 Jul 2017 03:31 AM PDT I'm currently watching the National Geographic show Disaster Earth and this episode is about earth quakes. They say that sometime in the future, there will be an earthquake comparable to one on Sumatra in 2004 and Chile in 2010. They say the cities of Portland, Vancouver and Seattle are at risk and as many as 4 per 1000 people living in the area will die, comparing that to the fatalities of the second world war. They can't say when it will happen but they seem fairly certain that it will happen. How can they be? [link] [comments]  |
| Posted: 15 Jul 2017 08:49 PM PDT |
| What do modern mathematicians study? Posted: 15 Jul 2017 11:56 AM PDT I see in threads people posting problems like the Collatz Conjecture or stuff to do with checkers and packs of cards...but this isn't what mathematicians really spend all their time on, surely? They seem pointless. What kinds of problems do modern mathematicians actually look at? [link] [comments]  |
| Posted: 15 Jul 2017 05:43 AM PDT |
| Twin paradox without the turn? Posted: 15 Jul 2017 10:19 AM PDT Hey! So, the twin paradox normally goes - a space ship flies away from earth, then comes back. However, because the space ship turns around or something, you can plot the world lines on that funny graph and it turns out they lost some time due to length contraction or something blah blah. How about if the space ship started really far away, moving towards the earth? Say the observer on earth saw people inside the space ship age at twice the rate. The people on the space ship would also see the people on earth age at twice the rate, right? How does this get resolved, over a period of time both parties observe themselves aging half as fast as the other, what age are they when they meet? Am I just getting it muddled in my head? Thanks! [link] [comments]  |
| Posted: 15 Jul 2017 06:57 AM PDT I know this is common practice in Asia and, particularly in places with high population density and in tight public quarters it makes sense, but is there evidence this significantly helps reduce infection rates, or is this mostly an old wives' tale? [link] [comments]  |
| Ionization by nonuniform magnetic field possible? Posted: 15 Jul 2017 03:06 PM PDT When including spin-magnetic field interaction in the Hamiltonian with the term B * S, e.g. B=(0,C*y,0), B_y * S_y=C * y * σ_y and using r + spherical harmonics for y. Does it mean an electron can escape from a bound state into the continuum (ionization) while having a spin flip through magnetic field interaction? Usual sources are not clear about whether this is possible, but the transition matrix element shouldn't be zero between a final (Coulomb-like) and initial (bound state) wavefunction. Even electron momentum l should be able to change in a transition like this. [link] [comments]  |
| Why is feedforward system in active noise control being susceptible to wind noise a disadvantage? Posted: 15 Jul 2017 09:02 PM PDT I was reading this article (http://edn.com/design/consumer/4422370/Active-noise-cancellation--Trends--concepts--and-technical-challenges) and it says that the feedforward system has a disadvantage of being susceptible to wind noise. Shouldn't the anti noise cancel the wind noise anyway? Why is it a disadvantage? [link] [comments]  |
| Posted: 15 Jul 2017 09:22 AM PDT The "Baby Names" thread in ShowerThoughts got me wondering if there's a bunch of kids getting named "Donald" in rural/Republican areas, "Barack" in urban/Democratic areas, etc. If it does, can we see it for things like Governors, high-profile Senators, etc.? [link] [comments]  |
| Posted: 15 Jul 2017 05:27 PM PDT |
| Posted: 15 Jul 2017 07:57 AM PDT |
| Does ivy actually hurt a tree by "choking" it, or is that an old myth? Posted: 15 Jul 2017 06:57 AM PDT I recently bought a house that has ivy on some of the trees in the yard. I was surprised by the number of conflicting "facts" I received during the inspection period. Landscapers, inspectors, friends, relatives, etc. each had a different opinion on whether ivy is bad for a tree. Some say that, without exception, it "chokes" the tree and kills it slowly. Some say there's absolutely no problem so long as the ivy leaves aren't blocking the tree's leaves. I was told "see, the ivy is why the to isn't growing," as well as "see, the ivy is why only the top can grow," and on and on and on. The homeowners said it had been growing in the trees when they bought it years ago, and the trees never showed a problem. I looked online and found a couple of sciencey looking articles that said it's no big deal, but I figure I probably shouldn't let confirmation bias be my guide. So: is ivy on a tree harmful to the tree? If so, in what conditions? Does it vary by type of tree? Type of ivy? What else do I need to know? What sources can I site to shutdown the disbelievers? [link] [comments]  |
| Posted: 15 Jul 2017 06:51 PM PDT |
| What would happen if you shoot neutrons at hydrogen plasma? Posted: 15 Jul 2017 02:54 PM PDT Who wants to perform this experiment? Basic idea: hopefully this doesn't get deleted, maybe someone can confirm: Hydrogen usually comes as an isotope where there is no neutron, just a couple of protons hanging out. It's really rare to find hydrogen with a neutron. So what if we get hydrogen plasma, and shoot a bunch of neutrons at it? [link] [comments]  |
| Do large canals connected to oceans affect water levels at all? Posted: 15 Jul 2017 07:22 AM PDT |
| Posted: 15 Jul 2017 10:41 AM PDT |
| How does music get transmitted from our phones to our speakers via Bluetooth or the auxiliary cord? Posted: 15 Jul 2017 10:52 AM PDT |
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