Why is the magnetic force vector perpendicular to the magnetic field? |
- Why is the magnetic force vector perpendicular to the magnetic field?
- When a child get's an organ/limb transplant, will the transplanted organ/limb grow with the child? If so, will the organ/limb grow according to the donor child's body genetic makeup or the recipient's?
- Would a boat with its hull sprayed by a hydrophobic coating have an advantage over an otherwise identical boat in a race?
- What temperature would be required for a modern match to spontaneously ignite under normal atmospheric conditions?
- What is gauge symmetry? I’ve come across the term a few times in the past few weeks. I don’t quite understand it and I’d like to know more.
- Why do bees swing side to side when looking at objects?
- Why do electron shells form?
- What would happen if I fired a gun on the moon?
- What are these lines in the ocean of the Bermuda Triangle?
- If radioactive elements decay, and have a half-life, how come we can observe elements with very short half-lives? Why haven't they decayed long before ever being discovered?
- Why does the Hawaiian hotspot create a chain of islands, rather than a single long ridge?
- What actually happens on a biological level when you burn your tongue?
- How much of one's personality is due to genetic predisposition as opposed to external factors?
- Is there a theoretical limit to fish size in the ocean?
- How do radiation levels of microwave ovens compare to radiation coming from incandescent, florescent, and led light bulbs?
- If a keyboard were made in alphabetical order would we be able to type as efficiently as we can with a QWERTY keyboard given we have the same amount of practice?
- What would happen if there was a planet-sized object in space that was not spherical?
- Why does rubbing alcohol hurt when we apply it?
- What were the properties of the four fundamental forces when they were unified?
- How does an electrical signal in the brain know where to go to cause a movement in the body?
- Does a portable speaker run out of power faster if it is playing audio louder?
- Do astronomers adjust for the speed of light when they sync data using telescope arrays?
| Why is the magnetic force vector perpendicular to the magnetic field? Posted: 01 Nov 2017 07:39 PM PDT |
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| Why do bees swing side to side when looking at objects? Posted: 01 Nov 2017 08:15 PM PDT This Halloween I as hanging around outside waiting to spook some kids when I noticed a bee flying around the driveway (looking for food I suppose). The bee seemed to be inspecting scattered things on the drive way, a leaf, a worm that had crawled up and died, a beer cap. Each time, the bee would approach (in flight) and swing side to side for 5-8 seconds and then move on to the next object. It did this for each one. My question is, why? Is it something with their eyes? [link] [comments]  |
| Posted: 01 Nov 2017 06:14 PM PDT I'm doing year 11 chemistry right now and covering the nature of the behaviour of different elements (Effective Nuclear Charge, Atomic Radius, Ionic Radius, etc.). I'm just wondering why atoms form electron shells. [link] [comments]  |
| What would happen if I fired a gun on the moon? Posted: 02 Nov 2017 04:06 AM PDT |
| What are these lines in the ocean of the Bermuda Triangle? Posted: 02 Nov 2017 05:38 AM PDT |
| Posted: 02 Nov 2017 02:03 AM PDT I'm thinking perhaps these naturally occurring radioactive decaying elements have already decayed away long ago (but also with the exponential decay, it'll get smaller and smaller and smaller which is why we measure half-life, because it'll decay "until infinity", right?). So then how can we observe these elements decaying in any meaningful way if these elements have been around for billions of years? Do they need to be 'activated' or extracted in some way before they begin to decay? [link] [comments]  |
| Why does the Hawaiian hotspot create a chain of islands, rather than a single long ridge? Posted: 02 Nov 2017 07:56 AM PDT I know that the Hawaiian islands are caused by a geological hotspot moving under the Pacific plate. Why does it create a number of small islands rather than one large, long one? Does it stop as it moves? Would it take too much energy to break through the crust many times rather than just a few? [link] [comments]  |
| What actually happens on a biological level when you burn your tongue? Posted: 02 Nov 2017 07:22 AM PDT |
| How much of one's personality is due to genetic predisposition as opposed to external factors? Posted: 01 Nov 2017 06:51 PM PDT |
| Is there a theoretical limit to fish size in the ocean? Posted: 01 Nov 2017 05:23 PM PDT Hello, with mammals like the blue whale and fish like the sleeper shark, I have gotten curious to whether or not there is a limit to the mass of a marine animal (with comparable density to sharks and whales). Is it possible fish of unseen size could exist in places like the Mariana trench? Would a larger animal prefer to be closer to the surface or deeper? And I'm aware that large whales and sharks stay near to the surface (relatively), but please don't use that as an argument as to whether or not it is possible, I want the reasons why or why not. Thanks. [link] [comments]  |
| Posted: 01 Nov 2017 03:43 PM PDT I'm tired of people complaining about microwaves emitting dangerous levels of radiation and want to compare it to something they use all the time. Thanks in advance. -sonusario7 [link] [comments]  |
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| What would happen if there was a planet-sized object in space that was not spherical? Posted: 02 Nov 2017 04:08 AM PDT I have a reasonable understanding of gravity in space, but nothing past an internet/high school level, so please correct me if I have anything wrong here. If objects are pulled toward the center of planets in space due to gravity, then what if the planet was a cuboid? What if it were a giant person? What point would objects caught in the planets gravity be pulled toward? [link] [comments]  |
| Why does rubbing alcohol hurt when we apply it? Posted: 01 Nov 2017 08:49 PM PDT Rubbing alcohol hurts intensely on just a small area, even though it helps us. Why would the body react this way? Doesn't it make more sense to give us a good feeling to encourage us to use it to decrease infection? [link] [comments]  |
| What were the properties of the four fundamental forces when they were unified? Posted: 01 Nov 2017 08:48 PM PDT |
| How does an electrical signal in the brain know where to go to cause a movement in the body? Posted: 01 Nov 2017 04:58 PM PDT I am working on a project and it is important to know where exactly can one probe to understand a nerve signal going to a hand. To put it more clearly, I want to be able to put sensors somewhere and try to differentiate a signal for the pinky finger to curl closed, from a signal for a thumb to curl closed, etc. I initially thought the way this worked was a specific nerve was responsible for a specific muscle, but when I looked into it I saw that the radial nerve is responsible for all hand movement. If this is true, how does a signal go from the brain to the finger using one line of information exchange? How does an electrical signal know which muscle to stimulate? I feel like I did a poor job at explaining my question so here's an analogy from my current understanding: If the nervous system is a highway that has many branches and those branches can have branches and exits (the muscles) how does a vehicle (a signal from the brain) know how to navigate its way down to a particular exit? [link] [comments]  |
| Does a portable speaker run out of power faster if it is playing audio louder? Posted: 01 Nov 2017 10:54 PM PDT |
| Do astronomers adjust for the speed of light when they sync data using telescope arrays? Posted: 01 Nov 2017 08:32 PM PDT |
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