Do dogs understand pictures of their owners? |
- Do dogs understand pictures of their owners?
- Why do our teeth not heal or regenerate when cracked or broken?
- We know the Earth is not perfectly round. Why do we not ever see it in any photos?
- How do the Mars orbiters (or rovers) communicate with the earth?How much signal is lost in space and how much time does it take?
- Why doesn't the zinc used in galvanic coatings react with oxygen as readily as iron?
- Can a inductor limit DC transient currents?
- Why doesn’t the sun’s gravitational pull make us a tiny bit lighter during the day? (when it’s above us)
- Why do we have different soaps for different things? What are the differences between, say, shampoo and dishwasher liquid that prevents them from being interchangeable?
- Does playing video games actually give you any cognitive benefits?
- Why the boiling point of water changes with pressure ?
- Why does certain medicine, like Claritin D, cause me to be drowsy but my workmate to be more "awake"?
- How does an eye scan security device work? Is every human eye ball unique like fingerprints?
- Are photons from light emitting sources such as a lightbulb, a campfire or the Sun different in anyway physically?
- How do scientists know how molecules look like?
- What happens if an electron on the "outermost orbit" of an atom absorbs energy (dunno if this is physics or chemistry) ?
- Is it theoretically possible for there to be a 4th dimension?
- Is there a method to determine the relative position of an object given its oriention in Earths magnetic field, acceleration and angular velocity(s)?
- Psychologists/Psychiatrists what is it called when someone is attracted to their "saviour"?
- Qubits. Why are they different in effect than using multiple bits to determine a single value?
- If two circles make contact externally, how much of the circumference of one actually makes contact with the other? And would that amount equate to an infinitesimal?
- Which foods are PRO-angiogenic? When I run a search for this, I only get results about ANTI-angiogenic foods...
| Do dogs understand pictures of their owners? Posted: 27 Sep 2018 12:30 AM PDT |
| Why do our teeth not heal or regenerate when cracked or broken? Posted: 26 Sep 2018 09:15 AM PDT Every other part of the human body will heal itself to a point. Get a cut? Skin grows back. Break a bone? the body will seal the cracks. Why is it that teeth do not regenerate whatsoever? [link] [comments]  |
| We know the Earth is not perfectly round. Why do we not ever see it in any photos? Posted: 26 Sep 2018 08:57 PM PDT |
| Posted: 26 Sep 2018 09:57 PM PDT |
| Why doesn't the zinc used in galvanic coatings react with oxygen as readily as iron? Posted: 26 Sep 2018 09:05 PM PDT I understand that galvanizing iron or steel with a protective coating of zinc can prevent rusting, which is caused by the reaction of the underlying iron with oxygen. But zinc also reacts with oxygen. Why, at the molecular level, is zinc slower or less likely to form zinc oxides than iron is to form iron oxides? Why is zinc, and not some other metal, the most ideal material for galvanization? [link] [comments]  |
| Can a inductor limit DC transient currents? Posted: 27 Sep 2018 12:07 AM PDT Let's say I have a DC constant voltage source. I plug a resistive load subject to voltage transients (infrequently but periodically adding and removing loads at intervals, loads that vary from one steady state to another under operating conditions, etc). If I want to limit the transient currents while holding the steady state current the same, would using an inductor be appropriate? Seems like this is a no brainer. Under steady state DC an ideal inductor is just a piece of wire. When subject to a short, sharp voltage rise the current through the inductor doesn't rise right away but rather rises as I = V/R(1-EXP(-t/tau)) where tau is the time constant tau = L/R. This limits the peak current due to storing the transient of the energy in the magnetic field of the inductor. Am I missing anything? is it really this easy to limit DC transients? [link] [comments]  |
| Posted: 26 Sep 2018 04:04 PM PDT |
| Posted: 26 Sep 2018 10:02 AM PDT Why couldn't we use hand soap in our hair, shampoo for our dishes, dishwasher liquid for our laundry, etc? Are there chemical properties of each that only allow them to be used on certain materials/in certain conditions? [link] [comments]  |
| Does playing video games actually give you any cognitive benefits? Posted: 26 Sep 2018 03:05 PM PDT Up until I read this article, which said that playing video games caused no increase in memory or attention, I was pretty confident that gaming was a good habit. That article only says things about memory and attention though, so what about other things like reaction time, problem solving skills, and coordination? Does it offer any benefits at all? Edit: Should this be in Neuroscience or Psychology? [link] [comments]  |
| Why the boiling point of water changes with pressure ? Posted: 26 Sep 2018 11:40 AM PDT Today i was in Termodynamics class and my teacher eventually talked about the boiling point of water and said that the boiling point of water goes down as the pressure goes down too. I couldn't figure it out in my head why this happens... [link] [comments]  |
| Posted: 26 Sep 2018 10:13 AM PDT |
| How does an eye scan security device work? Is every human eye ball unique like fingerprints? Posted: 26 Sep 2018 02:46 PM PDT |
| Posted: 26 Sep 2018 10:13 AM PDT I'm curious to ask those who understand the topic if there's any change in how a photon is made dependent on its origin (and captured) whether by a camera or an organic eye from start to finish. For example are there different types of photons? Thanks for your valuable time! [link] [comments]  |
| How do scientists know how molecules look like? Posted: 26 Sep 2018 02:05 PM PDT I mean there is this abstract notation of molecules. For example this is the notation of ethanol: But after watching a documentary which threw the notation of random molecules on the screen without much explanation, it left me wondering how people managed to figure out how each and every atom is connected. How did they figure out what is connected to what? [link] [comments]  |
| Posted: 26 Sep 2018 10:15 AM PDT Hello, I m not a native english speaker, and in my native language i couldn t find anything on this (or didn t know what i was looking for). (Also, there was something about energy levels, but the orbit thingy in the title sounds better than saying "what happens when electrons with the highest energy level absorb energy"). Anyhow, since i didn t have any chemistry class since 5 years and in my new (apprenticeship? Training? Some sort of school where i learn a job, anyway) we began with pretty basic stuff, like atomic models. My question is, since electrons "jump up" if you make them absorb energy, what happens if you do that to electrons which cannot jump, since there is no further energy level [link] [comments]  |
| Is it theoretically possible for there to be a 4th dimension? Posted: 26 Sep 2018 08:34 AM PDT I always figured it was possible there was some 4th dimension out there that could theoretically be discovered, but how would that work? What other boundaries are there? [link] [comments]  |
| Posted: 26 Sep 2018 10:08 AM PDT I am trying to determine the position of an object relative to its origin without using GPS. I have access to a sensor that can provide acceleration, angulary velocity and magnetic orientation and wanted to see if there was a way to use this to determine relative position. [link] [comments]  |
| Psychologists/Psychiatrists what is it called when someone is attracted to their "saviour"? Posted: 26 Sep 2018 10:07 AM PDT Hello there! So I remember once hearing something about a syndrome describing a victim of sorts falling in love or being attracted to a person that helped or saved them. To clarify my question let me give you a scenario: Person is stuck in a burning building - firefighter saves the person - person falls in love/becomes attracted to firefighter. Now I was wondering what that syndrome is called? That is, assuming it exists and that my memory is not playing tricks on me. [link] [comments]  |
| Qubits. Why are they different in effect than using multiple bits to determine a single value? Posted: 26 Sep 2018 10:41 AM PDT I.e. Qubit = 1, 0, or other Using two binary bits to determine one value 11 = 1 00 = 0 01, 10 = other Is it just a matter of efficiency (one qubit vs. multiple binary bits) or am I as stupid as I think I am? [link] [comments]  |
| Posted: 26 Sep 2018 09:59 AM PDT |
| Posted: 26 Sep 2018 10:41 AM PDT https://www.bing.com/search?q=pro+angiogenic+foods If some foods are anti-angiogenic, some must be pro-angiogenic, right? How come every result is about anti-angiogenic foods, even though I searched for pro-angiogenic? Are there any pro-angiogenic foods? [link] [comments]  |
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