Does caffeine actually increase the production of dopamine, or does it just enhance the dopamine already in your system? |
- Does caffeine actually increase the production of dopamine, or does it just enhance the dopamine already in your system?
- How does the mechanism for 'locking' something by pressing it into a slot and 'unlocking' by pressing back down work on devices like a nintendo ds?
- Does the edge of the observable universe sway with our orbit around the sun?
- Is it possible to work or study while lucid dreaming?
- What is the difference between continuous and discreet time translation symmetry?
- Pangea: How do we know that there wasn't anything else on the other side of the planet?
- Why does rubbing alcohol evaporate?
- How reliable/relevant is an IQ test, or "g" as a measure of human intelligence?
- Why don’t tattoos disappear?
- What is dirt made of? Is there a standard set of dirt ingredients that make it dirt, or does dirt/soil/the soft ground stuff vary entirely by location?
- How can we measure the age of the universe if time is relative?
- How is a vacuum a good insulator?
- How would the eruption of a volcano like Krakatoa compare to an eruption of The Yellowstone Caldera?
- When can a plant be officially considered dead?
- Why are raspberries hairy? What are those hairs for?
- How does the electric current used during electroconvulsive therapy go through the brain?
- Is intelligence inherited or created by environment; if a combination how much can be attributed to either ?
- Would an object falling from infinity to the surface of the earth reach escape velocity before it makes impact?
- Why did black holes get rejected as the reason behind the rate of rotation of the milky way?
- How does time distortion due to gravity work?
- How many passers-by do you need to create a pathway in grass?
- Can ticks, leeches, mosquitoes, or even bats die from drinking bad blood?
| Posted: 27 Jun 2018 06:38 PM PDT I was casually drinking my coffee and wondering what this is actually doing to my brain and why I feel so great when I drink it. Sure enough, it's partially because of dopamine. Here's why I am confused, though. Does the brain start producing more dopamine, or does it just take longer for it to be reabsorbed, or both? A lot of articles I read mention how it lets the dopamine "do it's thing more freely", but I'm not sure if that means ramp up production, or just act differently than before. [link] [comments]  |
| Posted: 27 Jun 2018 08:00 PM PDT Similarly to how clicking a pen works, my Nintendo DS accepts cartridges once they're pressed down a certain distance and it clicks into place. When I want the cartridge released I press back down and it releases the cartridge. How does this mechanism work? Is there an image I can look at? I was cleaning out my closet and I came across my old DS and realized that I have no idea how that mechanism functions. I never questioned it as a kid but now the question has been gnawing at me and I couldn't find an answer online so I've made this post [link] [comments]  |
| Does the edge of the observable universe sway with our orbit around the sun? Posted: 28 Jun 2018 03:47 AM PDT Basically as we orbit the sun, does the edge of the observable universe sway with us? I know it would be a ridiculously, ludicrously, insignificantly small sway, but it stands to reason that maybe if you were on pluto, the edge of your own personal observable universe would shift no? Im sorry if this is a dumb question. [link] [comments]  |
| Is it possible to work or study while lucid dreaming? Posted: 27 Jun 2018 06:57 PM PDT Let's say I am lucid dreaming, is it theoretically possible to "write" a program while dreaming, memorize it and type it in a computer when you wake up? Being able to work an extra 6-10 hours a day while still resting sounds interesting. [link] [comments]  |
| What is the difference between continuous and discreet time translation symmetry? Posted: 28 Jun 2018 04:17 AM PDT Space-time crystals follow which and break which due to change in what (quantum spin?)? [link] [comments]  |
| Pangea: How do we know that there wasn't anything else on the other side of the planet? Posted: 27 Jun 2018 03:55 PM PDT Apropos of this website, 240 million years ago, half of the earth was covered by a super continent, and the other half was covered by water. How do we know the land was all bunched up like that with nothing else on the other side? [link] [comments]  |
| Why does rubbing alcohol evaporate? Posted: 27 Jun 2018 07:27 PM PDT Why does rubbing alcohol evaporate when in contact with air and why is it also super cold even when in a warm environment? [link] [comments]  |
| How reliable/relevant is an IQ test, or "g" as a measure of human intelligence? Posted: 27 Jun 2018 02:21 PM PDT I'd like to have an idea of the scientific community's current position on the matter. How seriously should I take "g" and IQ tests as a psychometric theory/tool? [link] [comments]  |
| Posted: 27 Jun 2018 02:55 PM PDT If your skin falls and and replaces itself, how come your layers of skin with the tattoo doesn't fall off? [link] [comments]  |
| Posted: 27 Jun 2018 12:23 PM PDT When you dig, you tend to hit either stone or sand or dirt. But maybe dirt isn't a thing, it's a set of things, like it's a folk concept with no scientific correlate? But even then, generally, what is that soft stuff that's not sand? [link] [comments]  |
| How can we measure the age of the universe if time is relative? Posted: 27 Jun 2018 12:13 PM PDT How do scientists reckon the universe is 13.8 billion earth years old if time is relative, and the nature of time would (in my understanding) have been of variable nature? Is that 13.8 billion years essentially a measurement of the growth of spacetime—13.8 billion years big? Thanks for any clarification you can provide. 🙂 [link] [comments]  |
| How is a vacuum a good insulator? Posted: 27 Jun 2018 04:12 PM PDT I see a bunch of thermos cans advertise their double wall vacuum insulated bottle, but why it is good? [link] [comments]  |
| How would the eruption of a volcano like Krakatoa compare to an eruption of The Yellowstone Caldera? Posted: 27 Jun 2018 04:00 PM PDT Let's say both were placed in the center of the USA, what would be the comparative fallout from the two volcanoes? [link] [comments]  |
| When can a plant be officially considered dead? Posted: 27 Jun 2018 04:34 PM PDT With humans (and other animals), there seem to be a specific set of standards that are considered before declaring someone dead. When a person dies, there are still plenty cells that are still alive. However, when can plants be considered dead, if there even is a set of standards for such a thing? Is it when a majority or a certain percentage of its cells are dead? [link] [comments]  |
| Why are raspberries hairy? What are those hairs for? Posted: 27 Jun 2018 03:20 PM PDT |
| How does the electric current used during electroconvulsive therapy go through the brain? Posted: 27 Jun 2018 06:18 PM PDT |
| Posted: 27 Jun 2018 04:06 PM PDT |
| Posted: 27 Jun 2018 03:03 PM PDT |
| Why did black holes get rejected as the reason behind the rate of rotation of the milky way? Posted: 27 Jun 2018 10:10 AM PDT I am currently reading the (illustrated) "brief history of time" by Steven Hawking. As stated in the Foreword most of the book remained similar to the original version from 1988. In the chapter about black holes Hawking states that there are probably way more black holes in the milky way than visible stars which would explain why our galaxy rotates at the rate it does. As far as I know the most accepted explanation of today is that the extra mass needed is provided by dark matter/dark energy. Therefore I assume that this understanding changed between 1988 and today. Why? [link] [comments]  |
| How does time distortion due to gravity work? Posted: 27 Jun 2018 11:30 AM PDT What is it exactly that makes this happen, if it happens from objects such as black holes, can it then be reasoned that it happens from any object, simply on a much smaller scale? [link] [comments]  |
| How many passers-by do you need to create a pathway in grass? Posted: 27 Jun 2018 09:43 AM PDT |
| Can ticks, leeches, mosquitoes, or even bats die from drinking bad blood? Posted: 27 Jun 2018 12:50 PM PDT I know iron overdoses are a daily concern for creatures that feed exclusively off blood but is it possible for any such creature to ingest the blood of someone with a blood disease and die. (I don't mean being affected by the same disease but just dying cause the blood either didn't have what they needed or had a little something extra?) And if so, is it possible for any other these creatures to identify and avoid this? [link] [comments]  |
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