Why do the electric field lines at the end of two parallel plates curve? | AskScience Blog

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Friday, May 5, 2017

Why do the electric field lines at the end of two parallel plates curve?

Why do the electric field lines at the end of two parallel plates curve?


Why do the electric field lines at the end of two parallel plates curve?

Posted: 05 May 2017 02:44 AM PDT

I believe it is called the end-effect? However I would like to know why this happens.

Here is a picture of what I mean: Diagram

submitted by /u/Viper_201
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Why is pre-fission uranium relatively harmless to humans but spent nuclear fuel must be locked away for hundreds of years?

Posted: 05 May 2017 01:17 AM PDT

What impact does a tsunami have on ships at sea?

Posted: 05 May 2017 06:20 AM PDT

Hello r/askscience.
How much would a big ocean-going vessel (say, a US navy Nimitz-class aircraft carrier) notice a tsunami in the middle of an open ocean, thousands of miles from shore?
Would it be a destructive wall of water moving rapidly towards the ship, or would merely be a (un)noticable rise of the water level which a ship could pass over?
Assume the tsunami in question is the result of an earthquake with a rating of 9.0+ on the richter scale similar to the 1700 Cascadia or 2004 Indonesia earthquakes, both of which generated massive, ocean-crossing waves.

submitted by /u/Skogsmard
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If your cells are always dying and being replaced, how come things like freckles and birth marks don't go away?

Posted: 04 May 2017 03:00 PM PDT

Why don't cars just have AC outlets rather than "car outlets"?

Posted: 04 May 2017 06:10 PM PDT

If i put water in a microwave it heats up. If I put plastic in a microwave it doesn't heat up. But I assume power draw is the same. Where does that energy go?

Posted: 04 May 2017 05:00 PM PDT

What is the earliest a habitable planet could have formed?

Posted: 04 May 2017 05:56 PM PDT

The estimated age of the universe is 13.82 billion years, and the estimated age of the earth is 4.54 billion years. The first multicellular life according to wikipedia is 4.25 billion years ago. This could mean that the earth became 'habitable' after 290 million years, when the universe was 9.57 billion years old.

If the universe was fairly homogeneous after its creation, I would assume that for a while it remained above the temperature life could have started. In addition, being before the time when planets could have formed and organized into stable orbits and conditions. Then when was the time after the creation of the universe that a planet would have been able to form and sustain life?

submitted by /u/MonkeyLink07
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To what extent can ℝ^n be generalized for n∉ℕ?

Posted: 04 May 2017 05:24 PM PDT

I know that ℝ0 is a point, ℝ1 is the number line, ℝ2 is the Cartesian plane, etc. I also know that we can generalize n-dimensional space to all positive real n to include fractals (for instance, the dimension of the Sierpinski triangle is log(3)/log(2)≈1.585).

Is there any meaningful way to extend n-dimensional space to negative n? Complex n? Matrix N? I haven't heard of this being done, but I also know that once mathematicians define something, they like to generalize it far past what makes sense in terms of the original definition—back when numbers were just for counting, the concept of negative numbers seemed completely nonsensical.

submitted by /u/MaidofMemes
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How was the quadratic formula first discovered and for what use?

Posted: 04 May 2017 04:21 PM PDT

What happens to mass in particle smashing?

Posted: 05 May 2017 12:53 AM PDT

I've been wondering this for a while. What happens when particles are smashed together in, say, the Large Hadron Collider? Doesn't this violate the Law of Conservation of Mass where mass cannot be destroyed? Or is there another process going on where they meld together?

submitted by /u/KevnBlack
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Do humans emit X-rays from blackbody radiation?

Posted: 04 May 2017 02:39 PM PDT

Infrared is the most well-known light emitted by humans, but what about the other frequencies of light? It seems by Wien's Law that there should be some–albeit a tiny amount–of every frequency emitted, but is this actually the case?

submitted by /u/rizzarsh
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If you can convert kinetic energy into heat energy, how could the universe experience a heat death if supermassive objects like black holes or dwarf stars would constantly be attracting other bodies via gravity?

Posted: 04 May 2017 04:31 PM PDT

I don't know if that makes sense, but if a star were to eventually burn out and turn into a white dwarf or neutron star or something of that sort, its gravity would be around the same right? Wouldn't objects in their vicinity be affected by the gravity and therefore have kinetic energy constantly?

submitted by /u/Skabonious
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Why don't we feed our livestock with livestock?

Posted: 05 May 2017 06:50 AM PDT

It would save a lot of resources if we fed our livestock with the same kind of animal, and given that they are the same animal, this means of feed would account for practically all of the livestock's nutrition needs, wouldn't it?

Why aren't we doing this?

I know that cattle, for instance, are herbivorous and obviously wouldn't eat another dead cow lightly, but couldn't they be fed livestock in a different form, like pellets, for instance?

submitted by /u/Kukulqan
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What are all those reddish/bluish/blackish dots we see when we close our eyes?

Posted: 04 May 2017 10:38 AM PDT

Is there any kind of measurable difference in an object when its potential energy is increased?

Posted: 04 May 2017 07:18 PM PDT

For example, a ball at the bottom of ramp vs. at the top. It now has potential energy that it did not have before. Does this slightly increase the object's mass or is the only measure of potential energy the difference in height? If it is the latter, does this mean people at the exact same altitude anywhere on the planet have the same potential energy as each other?

submitted by /u/AyYoDeano
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What are the implications of the Quantum Delayed Choice Experiment?

Posted: 04 May 2017 05:49 PM PDT

Conceptually, how does the speed of light relate to the permeability/permittivity of free space?

Posted: 04 May 2017 06:27 PM PDT

I know the equation that relates the three constants: c=(ε0*µ0)-(1/2) However, I never understood why this worked or if there was a conceptual reasoning behind it, so any explanation would be greatly appreciated.

submitted by /u/Pekenten
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Is it possible to know how much of the total universe is occupied by the observable universe?

Posted: 04 May 2017 02:23 PM PDT

I feel like this is a pretty dumb question because it seems unanswerable by definition, but I've been surprised many times by science in the past. Is even a horrifically uncertain yet still better than random estimate possible?

submitted by /u/Kcwidman
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When the Sun's red giant phase ends it'll lose roughly 50% of its mass to space, does this excess surface hydrogen have enough mass to create a red dwarf?

Posted: 04 May 2017 03:14 PM PDT

What is actually happening when materials experience friction?

Posted: 04 May 2017 05:51 PM PDT

We say that when two materials rub against each other, they experience friction. Are they actually touching? How does them rubbing together cause heat?

submitted by /u/Crocodilly_Pontifex
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Is it possible for a star to form exclusively from a cloud of Helium?

Posted: 04 May 2017 01:26 PM PDT

I know that most stars form from a cloud of gas from the remnants from a super nova, which most of it is hydrogen, but could a star come together with helium? If that is the case then it would start with an He core and star fusing that straight into C?

submitted by /u/lee640m
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How do fish (and other ocean-loving creatures) see underwater?

Posted: 04 May 2017 04:07 PM PDT

What are the "mechanics" of how their eyes work being underwater their whole lives? And how far can they see? Is it likes us wearing goggles? How's does depth perception work for them in those conditions?

submitted by /u/IamThatduck420
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