Can "buildup" on scalp actually cause hair loss? |
- Can "buildup" on scalp actually cause hair loss?
- How do Owls turn their heads almost 360 degrees?
- Why can't solid objects move through each other?
- When we microwave food, why isn't the air in the microwave heated?
- How closely and with how much detail could astronomers see Jupiter in the 17th century?
- Wouldn't an earthquake destroy the Channel Tunnel/any sort of Trans-Atlantic underground light rail or tunnel?
- What changes in out body when our reaction time improves?
- Why does Element 43 (Technetium) have no stable isotopes?
- How do fans cool you if they're blowing room temperature air on you?
- What elements/compounds give Jupiter its colors?
- Can fluency in a language affect how we think?
- [Computing] Is it possible for mobile cariers to throttle GPS based on what app requests the location?
- Can lobsters harvested in the Atlantic be released and survive in the Pacific Ocean?
- *If* cell phones cause cancer, what is the proposed mechanism by which it happens? How likely is this proposed mechanism?
- Caffeine is a diuretic, sure, but just how strong is it?
- What keeps radio-waves together?
- Would more raindrops hit the front windshield (slanted) of your car if you were stopped, driving at a constant speed, or accelerating (assuming constant rainfall)?
- When/How was it discovered that "space" was a vacuum?
- If we have a picture of high resolution and quality and store it JPEG format (which is lossy, and messes with the colors of individual pixels), will the average color of the entire image remain the same, or will it change? Most importantly, why would that be?
- Why is an asteroid ring a ring and not a sphere?
- What's the fundamental force behind diffusion?
- Can we predict, statistically, how often objects in the asteroid belt collide? And have we ever witnessed it happen?
| Can "buildup" on scalp actually cause hair loss? Posted: 07 Jul 2016 09:08 PM PDT There are tons of products marketed towards people with thinning hair that claim to function by cleansing the scalp of buildup and creating a healthy environment for hair growth. This is because they allege that buildup can essentially kill your hair follicles if it gets bad enough. Is this scientifically sound, or a bunch of cosmetology marketing bullshit? [link] [comments]  |
| How do Owls turn their heads almost 360 degrees? Posted: 08 Jul 2016 03:59 AM PDT I know it's a bit obscure but how do owls manage to rotate their heads without damaging the blood vessels and cutting of blood supply to their brains? [link] [comments]  |
| Why can't solid objects move through each other? Posted: 08 Jul 2016 04:15 AM PDT Atoms are mostly empty space. Ernest Rutherford proved this with his famous gold foil experiment - there is a small, positively charged nucleus (which deflected the positively charged alpha particles), and negatively charged electrons orbit the nucleus in fixed energy levels. This explains why the alpha particles were able to move through the gold foil but also why some were deflected or reflected; most passed through the atoms' empty space, some were repelled by their nuclei, and other collided directly with the nuclei. So why is it that I can't move my hand directly though a solid surface? Surely the rate of collisions between the atoms in my hand and the atoms in the table would be so low given the ratio of empty space to space occupied by sub-atomic particles that my hand should pass through with minimal resistance, and if anything would get stuck 'inside' the object. Of course, states of matter are determined by intermolecular bonds, meaning that 'solid' in a scientific sense means that the molecules in an object are joined together strongly, usually with a regular arrangement. Since sub-atomic particles are not made up of molecules themselves (as they are the fundamental components of matter), why do they act as solids, and why can I not pass my hand through a solid object without resistance, given that the objects are in fact mostly empty space? [link] [comments]  |
| When we microwave food, why isn't the air in the microwave heated? Posted: 07 Jul 2016 11:19 PM PDT |
| How closely and with how much detail could astronomers see Jupiter in the 17th century? Posted: 07 Jul 2016 10:44 PM PDT Are there any pictures of the view telescopes astronomers like Galileo or Giovanni Battista Riccioli would have had? [link] [comments]  |
| Posted: 08 Jul 2016 03:28 AM PDT Just thinking about the future of transportation and how we move goods in the future at speed and across great distances. But wouldn't any sort of underground tunnel a la be very easily destroyed by an earthquake? [link] [comments]  |
| What changes in out body when our reaction time improves? Posted: 08 Jul 2016 02:28 AM PDT |
| Why does Element 43 (Technetium) have no stable isotopes? Posted: 07 Jul 2016 11:38 PM PDT |
| How do fans cool you if they're blowing room temperature air on you? Posted: 07 Jul 2016 10:10 PM PDT |
| What elements/compounds give Jupiter its colors? Posted: 07 Jul 2016 06:55 PM PDT The atmosphere is mostly hydrogren and helium, with some trace elements. What gives color to those swirling bands? [link] [comments]  |
| Can fluency in a language affect how we think? Posted: 07 Jul 2016 10:43 PM PDT For example, if a person's main language is English, and he learns Spanish as well, but he is not as fluent in it. He is tasked to write an essay in spanish. Due to the fact that he is not as fluent in Spanish, will thinking and planning the essay in Spanish affect the content that he is able to produce (disregarding vocabulary) compared to if he planned the essay in English, then translated and wrote in Spanish? A few weeks ago there was a post asking how people who don't know any languages think, and iirc their memories were significantly worse than those who knew a language. So, does your fluency in a language affect your thinking as well? [link] [comments]  |
| Posted: 08 Jul 2016 12:09 AM PDT |
| Can lobsters harvested in the Atlantic be released and survive in the Pacific Ocean? Posted: 07 Jul 2016 06:01 PM PDT Basically can you put an atlantic lobster in the pacific ocean and it survive just fine? [link] [comments]  |
| Posted: 08 Jul 2016 12:43 AM PDT I remember reading "Physics for Future Scientists" by physicist Richard Muller many years ago, and seeing that he described the notion of cell phones causing cancer as pure bunk. But that does not seem like the consensus. I've heard some people attribute cancer via cell phone not to radiation, but to heat. But surely, a shower is hotter than a cell phone, no? I'm confused. Is there a reasonable proposed mechanism for explaining how cell phone use might cause cancer, or not? My question ignores whether or not the data supports the claim that they do cause cancer. It might be the case that the data does show that they cause cancer, but that we don't understand the mechanism, for example. My question is purely about whether there is a reasonable proposed mechanism, or not. [link] [comments]  |
| Caffeine is a diuretic, sure, but just how strong is it? Posted: 08 Jul 2016 06:56 AM PDT Everyone has heard at one point or another how quenching your thirst with a caffeinated beverage is a bad idea, since caffeine only exacerbates dehydration by encouraging the body to expel water. But its diuretic effects have to be determined by dosage - and it stands to reason that there's a concentration per unit volume that would let you break even, or even beat the conventional wisdom. I'm sure that kidney function is mediated by a billion other factors, but on the average day and in the average body, does the whole range of common caffeine doses (from coffee, soda, et cetera) really result in a net water loss? Just how diluted would a caffeinated drink need to be before you broke even? Or is the conventional wisdom overblown? [link] [comments]  |
| What keeps radio-waves together? Posted: 08 Jul 2016 05:20 AM PDT In all depictions the sine wave(or cosine?) is coupled with another wave, I thinks it's electric/magnetic field right? electro-magnetic radiation... I just wonder, I think I get how you generate the signal, a pulsing/oscillating "thing" antenna(?) but when the waves propagate, what keeps them together, or is that a generalization? Why isn't it like a ball on a string, spinning in a circle and snapping off following a tangential path unless affected by an external force like gravity (or internal). [link] [comments]  |
| Posted: 07 Jul 2016 08:25 PM PDT Does the inclined plane of the windshield affect how many raindrops will hit your car in a set amount of time? Would the answer be the same for the top of your car (no incline)? [link] [comments]  |
| When/How was it discovered that "space" was a vacuum? Posted: 07 Jul 2016 07:49 PM PDT There must have been some experiment/observation/discovery that lead to us knowing that the earth's atmosphere thins out and stops at some point. Does any one know how and when it happened? [link] [comments]  |
| Posted: 07 Jul 2016 06:47 PM PDT |
| Why is an asteroid ring a ring and not a sphere? Posted: 07 Jul 2016 01:16 PM PDT Given that there's no "up or down" in space? I'm guessing the answer has something to do with the gravity of the asteroids themselves, but I just can't visualize how that would work. Can somebody help me out? I know nothing about this sort of thing. [link] [comments]  |
| What's the fundamental force behind diffusion? Posted: 07 Jul 2016 08:26 PM PDT |
| Posted: 08 Jul 2016 03:37 AM PDT |
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