How many average modern nuclear weapons (~1Mt) would it require to initiate a nuclear winter? |
- How many average modern nuclear weapons (~1Mt) would it require to initiate a nuclear winter?
- What’s actually happening when power goes out and comes back on after a few seconds during a storm?
- What do the axes on Garret Lisi's elementary particle explorer mean?
- When you turn on a water kettle, why does the light dim briefly?
- Are the planets in our solar system charged? Do electric fields exist between them?
- If you swim in a tank of water but don’t touch the bottom, does your weight affect the total weight of the tank?
- Which acid would be best to dissolve Kombucha SCOBY(symbiotic culture of bacteria and yeast) without dissolving glass?
- Why do infinity mirror tunnels appear to curve off in the distance as opposed to keeping in a straight line?
- How do astronomers determine the position of other celestial objects?
- What causes sink holes?
- What is the width of the cutting edge of a blade?
- What causes liquid to come out of your nose? (Explanation in OP)
- How do you get the mRNA in RT-PCR?
- Is it really possible to waste electricity?
| How many average modern nuclear weapons (~1Mt) would it require to initiate a nuclear winter? Posted: 01 Sep 2018 03:40 AM PDT |
| What’s actually happening when power goes out and comes back on after a few seconds during a storm? Posted: 31 Aug 2018 06:08 PM PDT |
| What do the axes on Garret Lisi's elementary particle explorer mean? Posted: 01 Sep 2018 03:37 AM PDT I recently found this very cool-looking tool that arranges particles in an 8-dimensional space according to their different charges which forms nice patterns. The problem is that I have no idea what the axes actually mean. If you switch the coordinates from "math" to "physics" and go to the "interactions" tab (the one that tells you what the particles actually are), I see that the charges/axes are Σ, w subindex S, w subindex T, W, Y, X, g3 and g8. The only one I think I understand is W, which I believe is the weak hypercharge, but the others are complete unknown to me. Additional questions about the explorer: What is a frame-Higgs? What is a PS X boson? [link] [comments]  |
| When you turn on a water kettle, why does the light dim briefly? Posted: 01 Sep 2018 02:01 AM PDT When I turn on a high current device, such as a vacuum cleaner or water kettle, the ceiling light dims briefly, before going back to normal. What causes this to happen and why does it only happen to light sources close to me and not everybody connected to the same electric wire, such as my neighbors? [link] [comments]  |
| Are the planets in our solar system charged? Do electric fields exist between them? Posted: 31 Aug 2018 07:02 PM PDT If you were up "above" the solar system, looking down at the plane of it, and you were wearing special Hoffman Lenses that allowed you to see Electric Field lines, what would you see? If the planets are charged, and they are moving, then does that mean they are throwing off electromagnetic waves? I have been told that the sun, for example, is several billion volts positive, relative to the Earth. Is this true? [link] [comments]  |
| Posted: 31 Aug 2018 01:37 PM PDT |
| Posted: 31 Aug 2018 01:44 PM PDT I have an odd question for this sub but it seems to be the best fit. I currently have a 5 gallon glass carboy which has a huge SCOBY stuck in it, roughly the diameter of the carboy. I made about 4 gallons of Kombucha and the SCOBY grew to the size of the container. The problem is that the opening is only about an inch or two in diameter itself and the SCOBY is thick and leathery. I've tried prying it out and cutting it but its just too big. I think my best option would be to use a weak, relatively safe, acid to dissolve it without destroying the carboy. Does anybody know of an acid I could acquire fairly easily and cheaply which also wouldn't be too terribly dangerous to use along with the proper safety precautions? [link] [comments]  |
| Posted: 31 Aug 2018 10:54 AM PDT I'm not 100% sure if they're called "infinity mirror tunnels" but I just saw a post and this is what I'm talking about: https://www.reddit.com/r/interestingasfuck/comments/9btdjh/this_portable_mining_cave/?utm_source=reddit-android [link] [comments]  |
| How do astronomers determine the position of other celestial objects? Posted: 31 Aug 2018 09:12 PM PDT |
| Posted: 31 Aug 2018 03:09 PM PDT |
| What is the width of the cutting edge of a blade? Posted: 31 Aug 2018 10:14 AM PDT Let's say you sharpen a knife with a 3000 grit stone, or approximately the sharpness of a chef knife out of the box, is there any way to measure or calculate the width of the very tip of the cutting edge ? [link] [comments]  |
| What causes liquid to come out of your nose? (Explanation in OP) Posted: 31 Aug 2018 03:13 PM PDT Say for example that you have a mouth full of water, and someone makes you laugh hard. Instead of laughing, the water comes out of your nose. Why does this happen? Is there a muscle flap that gets forced open? [link] [comments]  |
| How do you get the mRNA in RT-PCR? Posted: 31 Aug 2018 02:12 PM PDT I understand that the mRNA in the nucleus that you are taking is what is being expressed in the body. However, when you use gel electrophoresis, you can see if this gene is being expressed in, lets say, muscle tissue vs nervous system tissue based off if there is a band. Now back to PCR. When you do PCR, you need a DNA template strand. In RT-PCR, if the gel electrophoresis shows that a gene isn't being expressed in, lets say the muscle tissue, wouldn't you have already known that because you didn't have that mRNA in the test tube? I'm just a little confused on how RT- PCR shows that a gene isn't being expressed? Wouldn't you know since you didn't have the mRNA to begin with in the test tube? Or are you taking all the mRNA from the nucleus, then only using the specific primers for that gene, if it doesn't attach and replicate, then you don't get the band, which then shows that that gene isn't being expressed? [link] [comments]  |
| Is it really possible to waste electricity? Posted: 31 Aug 2018 01:41 PM PDT I am made to understand that leaving bulbs on when not needed, wastes electricity. However, beyond the meter box charges, how exactly is electricity wasted? If I turned off the light bulb, doesn't the unused electrical power/ capacity "lie idle"anyway? My conclusion is that the phrase is "wasting electricity" stems from the economical implication of electrical bills rather than actual "electricity wastage". Help me out guys. Thanks [link] [comments]  |
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