Why did all the lithium end up in Chile? |
- Why did all the lithium end up in Chile?
- Do nightclubs and other places the play loud music suffer from more structural issues than other buildings?
- Are overpasses designed to withstand over-height vehicle strikes? Is it based on size?
- How do we know that other galaxies do not consist of antimatter?
- Would my beer gut look different if I never wore pants my entire life?
- Do electromagnets still have north and south poles? How is polarity in an electromagnet determined/changed?
- During the Mass extinction of the Dinosaurs how long would it take?
- Is there any ecological danger in mining or otherwise destroying salt flats?
- From a neurological perspective, what is intelligence?
- How do we know the universe is still expanding?
- Why are antibiotics used more than bacteriophages?
- What happens when you slip and hit your head and go unconscious or get concussed? Is there a difference between the two? What goes on in the body/brain?
- How can a neutron star, as something made purely out of neutrons, have any kind of magnetic field ?
- In an ionophone (plasma speaker), how does the voltage and length of the arc relate to the sound volume and clarity?
- Why is there usually a roughly 50/50 male to female ratio?
- Can you tell by looking at power lines which way goes to the customers and which way is the power plant?
- Do any organisms other than humans have insomnia, or have trouble sleeping?
- How can waves of different frequencies be orthogonal to each other yet interfere either constructively or destructively?
- Why don't astronauts use steroids to prevent muscle atrophy?
- What is in the “smog” that swallows up Los Angeles and surrounding cities?
| Why did all the lithium end up in Chile? Posted: 05 Apr 2018 03:10 AM PDT |
| Posted: 05 Apr 2018 06:52 AM PDT The question came to mind when I was in a nightclub recently and the music was so loud I could literally feel the walls vibrating with it when I touched them. I don't know much about engineering but I can't imagine that's healthy for the structure. [link] [comments]  |
| Are overpasses designed to withstand over-height vehicle strikes? Is it based on size? Posted: 04 Apr 2018 04:26 PM PDT You see dump trucks with beds up and over height trucks striking overpasses. Are they designed for that? Is there a "rating" or standard? Are overpasses often structurally totaled from strikes? [link] [comments]  |
| How do we know that other galaxies do not consist of antimatter? Posted: 05 Apr 2018 07:23 AM PDT There are three things that you often hear about antimatter:
That last statement always confuses me because I don't know how we can know that. Well of course antimatter is (luckily) very rare on our planet, because antimatter particles are easily annihilated through regular matter here. You can also assume that it's very rare in our solar system or in the whole milky way for that reason. But if it normally behaves the same as regular matter does - how can we know that galaxies far away, take andromeda as an example, do not consist of antimatter? Wouldn't an antimatter star emit the same light as a regular star? Because as far as I know, the photon has no antimatter-counterpart (or is identical to its antimatter counterpart). And if there were whole galaxies consisting of it, we couldn't assume that it's rare anymore, that could mean that there is equally much antimatter as there is regular matter or that there even is more of it Is there a way to distinguish matter from antimatter while observing it from far away? Or did I miss something else? Maybe I misunderstood the whole concept. Well that's my question, I would be thankful for any answer. [link] [comments]  |
| Would my beer gut look different if I never wore pants my entire life? Posted: 04 Apr 2018 03:42 PM PDT Does our clothing and how it fits have any effect on how adipose tissue develops and accumulates? If so, how does our body store fat around tight fitting clothes (like the waist of my pants)? [link] [comments]  |
| Posted: 05 Apr 2018 06:19 AM PDT |
| During the Mass extinction of the Dinosaurs how long would it take? Posted: 05 Apr 2018 06:08 AM PDT When the asteroid hit how long would it take to say wipe them out completely weeks? Days? Hours? [link] [comments]  |
| Is there any ecological danger in mining or otherwise destroying salt flats? Posted: 05 Apr 2018 06:49 AM PDT I saw a post about lithium mining and how salt flats are a popular source. As far as I know, salt flats are of virtually zero importance to the ecosystem, and possibly the same for barren arctic areas (except for the few animals that traverse it). Could we strip and mine to our hearts content and expect no significant consequences? Note: I'm dismissing air pollution and assuming we don't dump waste into water. [link] [comments]  |
| From a neurological perspective, what is intelligence? Posted: 04 Apr 2018 08:34 PM PDT Both my parents are quite bright (Dad is a doctor who does research. Mom is a nurse.) Several years ago, I had my IQ tested and was told that I have something called Nonverbal Learning Disorder. My verbal score was high, but most other aspects of my intelligence were average or below average, indicating that certain parts of my brain work more efficiently than others. One would assume that two intelligent parents would have a child of equal or greater intelligence, but for me this wasn't the case. From a biological perspective, what is intelligence, and how does an "intelligent" brain differ from one that's average or slow? [link] [comments]  |
| How do we know the universe is still expanding? Posted: 05 Apr 2018 01:30 AM PDT I am familiar with Hubble and his namesake telescopes discoveries about the red-shift witnessed in distant galaxies and that the further the galaxy the faster they appear to be moving away relatively to us. Yet I find it curious that closer galaxies do not show this, like Andromeda. Yet the galaxies we do observe it from, we are seeing light that is millions or billions of year old potentially, so how do we know it is still happening? [link] [comments]  |
| Why are antibiotics used more than bacteriophages? Posted: 04 Apr 2018 11:58 AM PDT We know that antibiotics isn't going to last long as bacteria find ways to become immune to it. So my question is, why hasn't the use of bacteriophages become a medical practice. Just like regular viruses, they seem to mutate after they leave they made contact with the bacteria. So just like the situation with us humans and the flu, it wont be easy for bacteria to mutate and become fully immune "Bacteriophage A" because there would be many versions of it. [link] [comments]  |
| Posted: 05 Apr 2018 03:37 AM PDT Someone slips and hits their head on something, gets punched really hard, or just takes a strong force to the head, what is actually happening? Are they unconscious or concussed? What's the difference internally? What's the differences of how the body responds, like what's the fencing response or the abnormal positioning that happens after something like that? Are their eyes open? Are they open but rolled back in their head? Are their senses basically turned off or are they in like power save mode or something? Particular in combat sports where fighters go into fencing response, what's different between them and someone that hits their head and has to go to the hospital and have surgery to get part of their skull taken out to relieve pressure? One who slips, loses consciousness, and is taken to the ER, are they treated like an athlete would be or if they're unresponsive do they go straight to surgery? [link] [comments]  |
| How can a neutron star, as something made purely out of neutrons, have any kind of magnetic field ? Posted: 05 Apr 2018 07:19 AM PDT I am mainly refering to this. The video explains what neutron stars are most likely made of, but if they are only made of neutrons, how can they have any magnetic properties ? Aren't protons neutral in charge ? [link] [comments]  |
| Posted: 05 Apr 2018 05:25 AM PDT |
| Why is there usually a roughly 50/50 male to female ratio? Posted: 04 Apr 2018 03:45 PM PDT An asymmetry between male and female members of many species is that males can reproduce quickly and with many females, while females can only have one (or so) baby at a time. This puts a scarcity on available females, leading to various kinds of sexual selection. Wouldn't a more straight forward strategy be to give a preference to female births over male? I assume that if you did the math about the optimal male to female ratio to maximize reproduction, if wouldn't be 50/50 but more like 20/80. Is there some reason that it's difficult for a biological system to vary that? What's special about 50/50? [link] [comments]  |
| Posted: 04 Apr 2018 01:32 PM PDT I got thinking of this in a Walking Dead type post apocalypse scenario where you might be ambitious enough to try to restart a power plant. If you came upon a power line, and the power is out, would you be able to tell if you should go left or right to get to the power generation plant? [link] [comments]  |
| Do any organisms other than humans have insomnia, or have trouble sleeping? Posted: 04 Apr 2018 12:16 PM PDT |
| Posted: 04 Apr 2018 10:03 AM PDT I think I am missing something here. In a traditional geometric view, two orthogonal vectors, say a and b, cannot interfere with each other. For example, i, j, k are orthogonal basis of Eucledian space, and each point can be represented through a certain combination of these. Fast forward to waves: sine waves of different frequencies are orthogonal to each other (hence fourier decomposition is even possible in the first place?), but they still interfere with each other. Sound waves are a perfect example. What am I missing? [link] [comments]  |
| Why don't astronauts use steroids to prevent muscle atrophy? Posted: 04 Apr 2018 03:07 PM PDT |
| What is in the “smog” that swallows up Los Angeles and surrounding cities? Posted: 04 Apr 2018 04:24 PM PDT |
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