In this gif of white blood cells attacking a parasite, what exactly is happening from a chemical reaction perspective? |
- In this gif of white blood cells attacking a parasite, what exactly is happening from a chemical reaction perspective?
- Why are Terahertz waves/radiation defined as electromagnetic waves between 0.3 to 3 teraherz?
- On a cellular level, what is a memory and how are they stored/accessed in the brain?
- Why are the north and south poles not aligned with the magnetic field poles of Earth?
- Would it be possible to oxidise Gold using Chlorine Trifluoride ?
- Why is Vacuum Birefringence viewed as a signature of Lorentz violation?
- What are the current barriers to generating magnetic fields around space ships to protect crew from radiation?
- Is there a substance that when heated becomes more viscous?
- What is the physical attribute of matter that allows for less or more heat transfer?
- Was it coffee or tea to evolve the biosynthesis of caffeine first?
- What happens when dissolving salts of phospholipids in organic solvent?
- How does the Earth produce its magnetic field?
- New skin cells push to the surface constantly. So in effect you get new skin every month. When this happens why don't scars, burns, and blemishes disappear? How does the new skin get "damaged"?
- What is the entropy operator in QM?
- Why do I have to use a password rather than my fingerprint to unlock my phone after a restart?
- [Physics] If electricity follows the path of least resistance, then why is lightning jagged and irregular rather than one straight line?
- Would ionized hydrogen gas be more or less reactive with oxygen compared to neutral hydrogen?
- Does cosmic radiation have a malignant effect on people outside of Earth's Magnetic Field?
- Do shorter people have healthier hearts than taller people?
- Is it possible for a photon to "hit" another photon (transfer energy, momentum, break up into multiple lower energy photons)?
- How is gene sequencing performed in labs for eukaryotes and how much does it cost?
- How does lightning work? (Don't know exactly how to ask this)
- Does an integer n exist such that e^n is also an integer? If so, what does n equal? If not, why not?
| Posted: 30 Nov 2016 07:52 AM PST http://i.imgur.com/YQftVYv.gifv Here is the gif. This is something I have been wondering about a lot recently, seeing this gif made me want to ask. Chemically, something must be happening that is causing the cells to move to that position, some identifiable substance from the parasite or something, but can cells respond direction-ally to stimuli? Edit: thank for you for the responses! I will be reading all of these for quite a while! [link] [comments]  |
| Why are Terahertz waves/radiation defined as electromagnetic waves between 0.3 to 3 teraherz? Posted: 01 Dec 2016 06:21 AM PST I feel like I'm about to ask a stupid question but I'm going to do it anyway. Wikipedia states:
Is it not confusing to say that something at 300Ghz is Terahertz radiation, but something at 3.5 terahertz is not teraherz radiation? Why 0.3 - 3Thz? Why not 1Thz-999.9Thz? While I'm at it, what comes after 3Thz? Is that classed as petahertz radiation or what? [link] [comments]  |
| On a cellular level, what is a memory and how are they stored/accessed in the brain? Posted: 01 Dec 2016 08:01 AM PST I understand that neurons can rearrange themselves to change what other neurons they are connected to. Are memories just a specific sequence of neuron activations or is there more to it? If that is the case, how does a neuron activation pattern incite a picture or a smell in our brain? [link] [comments]  |
| Why are the north and south poles not aligned with the magnetic field poles of Earth? Posted: 01 Dec 2016 02:42 AM PST The Earth's magnetic north pole is somewhere in Greenland. Why does it not align with the rotational North pole? [link] [comments]  |
| Would it be possible to oxidise Gold using Chlorine Trifluoride ? Posted: 30 Nov 2016 09:39 PM PST Just asking, to be honest. I'm not really a chemistry guy but things that go ''Boom'' are always interesting, and Chlorine Trifluoride being a super-dangerous chemical that can set fire to Asbestos, would it be possible to oxidise Gold using it ? Ib haven't found a single article, paper or anything on the matter. I'd really like to see if Gold could potientially oxidise. Thanks ! [link] [comments]  |
| Why is Vacuum Birefringence viewed as a signature of Lorentz violation? Posted: 01 Dec 2016 02:23 AM PST |
| Posted: 30 Nov 2016 08:24 PM PST In the much-aligned 2009 sci-fi tv show Defying Gravity, the ship Antares had special generators to produce a magnetic field to mimic that of earth, such that the ship's occupants would be protected from radiation. I never see this as a considered option in talks about possible solutions for extended duration trips in space. Why is that? How much power would be needed to generate such a field, and how could we do it? [link] [comments]  |
| Is there a substance that when heated becomes more viscous? Posted: 01 Dec 2016 05:47 AM PST I know in many and possibly all cases fluids becomes less "thick" when heated, is this the case for all fluids? [link] [comments]  |
| What is the physical attribute of matter that allows for less or more heat transfer? Posted: 01 Dec 2016 04:11 AM PST Why, physically, do some materials radiate heat very well, and some do not? Is this a physical effect of 'keeping' its vibration? [link] [comments]  |
| Was it coffee or tea to evolve the biosynthesis of caffeine first? Posted: 30 Nov 2016 08:03 PM PST Am having a hard time finding an answer to this. Also it is well documented what enzymes the coffee plant uses in its pathway but what NMTs (N-methyltransferases) does the tea plant use? [link] [comments]  |
| What happens when dissolving salts of phospholipids in organic solvent? Posted: 01 Dec 2016 01:43 AM PST Let's say I would dissolve a sodium salt of phosphatidylserine (http://imgur.com/a/uAXz2) in chloroform, would the it (The sodium) disassociate, and what would the relative charge be? Or would it not disassociate and be fully protonated? Any insights you could offer would be helpful, thanks! [link] [comments]  |
| How does the Earth produce its magnetic field? Posted: 30 Nov 2016 06:10 PM PST |
| Posted: 01 Dec 2016 05:15 AM PST |
| What is the entropy operator in QM? Posted: 30 Nov 2016 08:17 PM PST |
| Why do I have to use a password rather than my fingerprint to unlock my phone after a restart? Posted: 01 Dec 2016 04:37 AM PST |
| Posted: 01 Dec 2016 03:49 AM PST |
| Would ionized hydrogen gas be more or less reactive with oxygen compared to neutral hydrogen? Posted: 30 Nov 2016 11:25 PM PST Neutral hydrogen combines readily with oxygen to form water because the oxygen is electronegative and hydrogen has electrons to give. If we strip the electrons from hydrogen and just introduce a bunch of protons to a chamber of oxygen gas, would it react less than if we had used regular hydrogen gas? [link] [comments]  |
| Does cosmic radiation have a malignant effect on people outside of Earth's Magnetic Field? Posted: 30 Nov 2016 08:16 PM PST I was watching Cosmos recently, and the wonderful Neil deGrasse Tyson made a remark about the adverse effect of cosmic radiation on biological things such as DNA. He then proceeded to remark that the Earth's magnetic field repels much of this radiation. This brings me to my question. If the magnetic field is what protects us from cosmic radiation, doesn't that mean that if we leave the Earth's magnetic field we would be susceptible to all of that dangerous cosmic radiation? Or do we have external ways to repel the radiation on things like space shuttles or astronaut suits? [link] [comments]  |
| Do shorter people have healthier hearts than taller people? Posted: 30 Nov 2016 10:24 AM PST Does the actual length of how far a body has to pump blood and how much it has to work against gravity provide any positive health benefits? [link] [comments]  |
| Posted: 30 Nov 2016 04:14 PM PST |
| How is gene sequencing performed in labs for eukaryotes and how much does it cost? Posted: 30 Nov 2016 09:15 PM PST I was inspired for this question by a recent article talking about the species of Yellow bellied three toed skinks where one population at higher elevations is giving live birth, and the population at sea level lay eggs. It made me curious about finding the difference in genes that control live birth vs egg laying. [link] [comments]  |
| How does lightning work? (Don't know exactly how to ask this) Posted: 01 Dec 2016 12:59 AM PST I don't really know how to describe/ask this, but I was watching a video earlier which showed lightning in slow motion and something about how it moves caught my attention. There were times in which the lightning sped up and went awry, and after a few milliseconds it disappeared that made me question "Why is it speeding up when seemingly nothing has changed?" Link to the video: https://www.youtube.com/watch?v=_fTC_Ud_k3U It happens at around 7:38 Edit: I was unsure in what category to put this in, if it's in the wrong category just ask me to change it [link] [comments]  |
| Does an integer n exist such that e^n is also an integer? If so, what does n equal? If not, why not? Posted: 30 Nov 2016 02:50 PM PST |
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