Why isn't dopamine a recreational drug? |
- Why isn't dopamine a recreational drug?
- Why do we sometimes confused feeling cold with feeling wet?
- How are the aluminum compounds in antiperspirants effective in blocking sweat production? What is unique about their acid/base properties that help them do this?
- Do we actually know were the center of the universe is located? Do we know where we are in the entire universe?
- Are there (according to science) different human races?
- CO2 levels above 945ppm, a normal rate in indoor environments, have been shown to reduce cognitive function by 15%. What is the most efficient way CO2 can be removed from indoor air in situations where ventilation is not feasible?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- What criteria must be met to trigger the Placebo Effect?
- How confident are we about the link between exercising earlier or later in the day and it's affect on the circadian rhythm i.e. that vigorous exercise later in the day is disruptive to the CR?
- Do incandescent lightbulbs fail because the vacuum leaks, causing the filament to burn or because the filament itself fails due to multiple cycles of heating and cooling?
- Do non-UV absorbing intraocular lenses exist?
- Why is U–Pb dating so effective in measuring the age of the Earth? Wouldn't there be decaying uranium floating around the early Solar System, or even *before* the formation of the Sun during the nebula stage?
- Do all solids have a melting point?
- What does "a faster metabolism" exactly mean?
- Why is it that liquids can multiply force but solids can't?
- Does cell damage occur when an injection is given? What causes the pain or discomfort?
- By my understanding, electromagnetic forces and gravitational forces behave rather similarly, yet electromagnetic forces can both attract and repel while gravity can only attract. Is it possible to have a "negative" gravitational field, one that repels?
- Why do only UV rays tan skin? Why not other things that burn you?
- How do we know what the gene sequence is for a protein when we discover a new protein?
- Does light make a sound (in a medium)?
| Why isn't dopamine a recreational drug? Posted: 22 Jan 2019 03:40 PM PST From what I understand, drugs like meth and cocaine are addictive because they cause a sharp increase of dopamine within the brain. What is stopping someone from injecting themselves with dopamine to get high? [link] [comments]  |
| Why do we sometimes confused feeling cold with feeling wet? Posted: 22 Jan 2019 03:34 PM PST |
| Posted: 23 Jan 2019 05:19 AM PST - Aluminum chloride - Aluminum chlorohydrate - Aluminum hydroxybromide [link] [comments]  |
| Posted: 22 Jan 2019 08:27 PM PST |
| Are there (according to science) different human races? Posted: 23 Jan 2019 12:37 AM PST Disclaimer: I have no intention to receive answers which justify racism or a hierarchy of races. All people are worth the same. I am not a native english speaker. Question: Is there scientific proof of different human races? If not, what is the difference between, for example Asian and African people called? Is it correct to compare human distinctions with animal distinctions (i.e. Dogs —> Labrador vs. Shepherd)? I am looking forward to a fact based discussion. [link] [comments]  |
| Posted: 22 Jan 2019 10:41 AM PST Study Referenced:
Are algae scrubbing setups an efficient solution to converting the CO2 in the air into O2? edit: I should clarify that I'm looking at solutions an individual can use in their home. [link] [comments]  |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 23 Jan 2019 07:12 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology 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 criteria must be met to trigger the Placebo Effect? Posted: 23 Jan 2019 05:56 AM PST For example if I were to take a headache placebo is it my immediate believe in taking the pill that cures my pain(cures pain right after taking the pill because I associate the pill with healing) or is it the long term believe that is constantly in the back of my head like "the pill will make it better" that cures my pain. What I'm asking is, how do you define believe and what criteria must be met to trigger the Placebo effect? [link] [comments]  |
| Posted: 23 Jan 2019 05:27 AM PST For instance on the wiki page about Delayed Sleep Phase Disorder, it quickly mentions that exercise early in the day is beneficial to the maintenance of a regular CR, implying that exercise later in the day is likely not. [link] [comments]  |
| Posted: 23 Jan 2019 05:52 AM PST |
| Do non-UV absorbing intraocular lenses exist? Posted: 22 Jan 2019 11:46 PM PST I just learned about how Monet was able to see UV lights when he got his crystalline removed. And now it fascinates me. I was wondering if non-UV absorbing intraocular lenses existed? So intraocular lenses so you can see clearly again, but non-UV absorbing so you can still see UVs. Are they dangerous? [link] [comments]  |
| Posted: 22 Jan 2019 10:13 PM PST |
| Do all solids have a melting point? Posted: 22 Jan 2019 07:45 PM PST |
| What does "a faster metabolism" exactly mean? Posted: 22 Jan 2019 03:07 PM PST So all my life I've been a really skinny guy. I'm usually around 62-64kg and I have never really cared about what I eat, as in not once counted calories, going for the "lighter" options, or even looking for healthier alternatives, so to me it's mind boggling to see all the people that struggle trying to lose weight, going on really strict diets, etc.. The most I've weighted in my life I believe was around 68 kilos, and that was because I was actively trying to gain weight, crossfit 3 times a week, protein shakes, etc., and it only took me a couple of months of not working out to lose all of it. Usually when I wonder why is it so hard for me to gain weight while it is so easy for other people, the answer is pretty much "it's because you have a faster metabolism", and they leave it at that. What does it exactly mean? Can that be changed over time? It's not like I'm going to the bathroom every couple hours either (or even daily tbh), so I don't even understand where is all the food stored and how exactly is it disposed of as opposed to it being transformed to fat and stored (which I'm pretty sure it isn't). Also I recently read that people only share about 10% of the microbial life inside them, is that related to my question? [link] [comments]  |
| Why is it that liquids can multiply force but solids can't? Posted: 22 Jan 2019 11:09 PM PST I understand it mathematically using the displacement of liquid and conservation of energy, but I can't intuitively see why a piston with liquid is able to multiply the force. If I can lift a "heavy force" with a light force, then somewhere there must be an imbalance in the piston, right? Why isn't there some net acceleration on the pistons if the forces are imbalanced? I've been reading some explanations that say water is generally incompressible, but wouldn't that hold for solid steel as well? [link] [comments]  |
| Does cell damage occur when an injection is given? What causes the pain or discomfort? Posted: 23 Jan 2019 12:12 AM PST |
| Posted: 22 Jan 2019 09:08 PM PST |
| Why do only UV rays tan skin? Why not other things that burn you? Posted: 23 Jan 2019 02:42 AM PST |
| How do we know what the gene sequence is for a protein when we discover a new protein? Posted: 22 Jan 2019 08:29 PM PST Say we find a protein, and we don't know what it does or what the gene is or where it's located. I know we can sequence the amino acid sequence via a few methods like mass spectrometry or Edman degradation, but since there are wobble pairs, how do we find where the gene for this new protein is located and what that gene sequence actually is? [link] [comments]  |
| Does light make a sound (in a medium)? Posted: 22 Jan 2019 11:26 PM PST In my very surface level understanding of the physics of photons, I know that photons have no mass but still have momentum that can be transferred to other particles. If enough photons interact with a medium, could it generate compression waves and be registered as sound? To be specific, I don't mean signal transformations like radio waves where signals are coded and decoded. And would there be any correlation between the frequency of the light and the frequency of the sound? (If any part of this post sounds weird, it could be because the question came to me as I was trying to go to sleep. But, it could also be that I have no idea what the hell I'm talking about.) Anyway, thank you and I'm looking forward to the responses! :D [link] [comments]  |
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