If I were holding a handful of DNA, what would it look like?

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• If I were holding a handful of DNA, what would it look like?
• If numbers can be infinitely large, can they also be infinitely small?
• So, Nuclear Subs can stay submerged for about as long as they can keep the crew fed and sane - no worry of oxygen. Why cant we make a space station like that - without worry of oxygen running out?
• Why do some vaccines need multiple doses to be effective such as HPV vaccine? And some only need one dose? When the vaccine needs multiple doses does it only protect after the final dose if not when are you protected?
• When is something classified as a solid as opposed to a very thick liquid?
• How do we know what neurons look like?
• So Alpha Draconis and Polaris have been pole stars - what other stars have been/will be pole stars?
• Why electron-phonon coupling can decrease phonon energy?
• In earth orbit, there's a 5-10,000km gap of relative "calm" between the Inner and Outer Van Allen Radiation Belts. Would this be a good place to build a future space station?
• Do objects really always fall at the same rate?

If I were holding a handful of DNA, what would it look like? Posted: 14 Sep 2018 02:42 PM PDT And how much would a handful weigh? submitted by /u/Ohm_eye_God [link] [comments]

If numbers can be infinitely large, can they also be infinitely small? Posted: 15 Sep 2018 04:49 AM PDT A friend told me the following math problem: Imagine you are walking to the bus stop. Your current position has a value of 1, the bus stop has a value of 0, and the distance between the two can be represented by a decimal. Before you reach the bus stop you must first reach half way to the bus stop (0.5), and then you must reach half way between that point and the bus stop (0.25), and then you must reach half way between that point and the bus stop (0.125) and so on and so on, I think you get the picture. If you must first pass an infinite number of places before reaching the bus stop, mathematically how do you actually reach it? ​ If you continue this process infinitely, simple math would suggest that you will never reach the bus stop, but we know that we can reach it in a real world example. Is this because as numbers get very small they must approach a finite value? [link] [comments]

So, Nuclear Subs can stay submerged for about as long as they can keep the crew fed and sane - no worry of oxygen. Why cant we make a space station like that - without worry of oxygen running out? Posted: 14 Sep 2018 12:01 PM PDT submitted by /u/KingCon5 [link] [comments]

Why do some vaccines need multiple doses to be effective such as HPV vaccine? And some only need one dose? When the vaccine needs multiple doses does it only protect after the final dose if not when are you protected? Posted: 14 Sep 2018 12:54 PM PDT submitted by /u/the_damocles [link] [comments]

When is something classified as a solid as opposed to a very thick liquid? Posted: 14 Sep 2018 12:46 PM PDT Are things like Ice Cream, Commitments (Mayo/Ketchup), Engine Grease counted as liquid? submitted by /u/Da_b_guy [link] [comments]

How do we know what neurons look like? Posted: 14 Sep 2018 11:49 AM PDT submitted by /u/olosen [link] [comments]

So Alpha Draconis and Polaris have been pole stars - what other stars have been/will be pole stars? Posted: 14 Sep 2018 04:00 PM PDT submitted by /u/Three_Scarabs [link] [comments]

Why electron-phonon coupling can decrease phonon energy? Posted: 14 Sep 2018 10:25 AM PDT I recently followed a course of "solid state physics" and studying I found out that exists "phonon softening" that can be the signature of supeconductivity in some materials. As far as I know this is because a strong coupling between electrons and phonons lower the energy of phonons as I increase the dopant level. But why is so? I imagine the topic is pretty deep, so if you have also some article to suggest I would be happy submitted by /u/Background_Jackfruit [link] [comments]

In earth orbit, there's a 5-10,000km gap of relative "calm" between the Inner and Outer Van Allen Radiation Belts. Would this be a good place to build a future space station? Posted: 14 Sep 2018 10:02 AM PDT And if a station could safely be built in this orbital gap, could it be used to assemble, test, and then launch large spacecraft to places like Mars? submitted by /u/Sylvester_Scott [link] [comments]

Do objects really always fall at the same rate? Posted: 14 Sep 2018 02:05 PM PDT If two objects of differing sizes are dropped at the same time, they fall at the same rate, because while the larger object has a greater gravitional force acting on it, it also has a greater resistance to that force. BUT: What if those objects were dropped on opposite sides of the Earth? Would the larger object pull the Earth in its direction an infinitesimal amount and "fall" faster? And, therefore, if the two objects were dropped at different times in the same area, wouldn't the larger object have a slightly faster perceived acceleration? submitted by /u/lcblangdale [link] [comments]

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