Does the rainfall from once-in-a-lifetime storms help drought conditions? |
- Does the rainfall from once-in-a-lifetime storms help drought conditions?
- Can "hybrid" caves form, in which some chambers are lava tubes, and others made by limestone dissolving?
- How is the magnetism of bar magnet the same force as in an electromagnet?
- How was the mRNA in COVID-19 vaccine created?
- How can fish be so active in cold water when other cold blooded animals like reptiles and amphibians need the Sun to warm up?
- What makes a caterpillar become a moth or butterfly?
| Does the rainfall from once-in-a-lifetime storms help drought conditions? Posted: 25 Oct 2021 08:41 AM PDT Yesterday, the bomb cyclone that hit California dropped record rainfall on many locations in the state. My question is whether this record rainfall is as beneficial to overall drought conditions as a year that gets higher than average rainfall over a period of months? Like is this water able to enter the water table or does it just runoff into streams/rivers and eventually the ocean without being usable for consumers? [link] [comments]  |
| Posted: 25 Oct 2021 02:13 PM PDT I'm wondering about speleogenesis - the formation of cave systems. As I understand it, there are really only 3 types of caverns - those formed when groundwater dissolves holes into limestone karsts, those formed by lava flows after the lava recedes, and the rare case of sub-glacial ice caves formed between a layer of ice and a stone floor as the glacier melts. What I am wondering is, could you get a situation where a limestone cave and a lava tube cave connect or overlap? Perhaps a way to think of this is "can you find both lava and limestone in the same place?". [link] [comments]  |
| How is the magnetism of bar magnet the same force as in an electromagnet? Posted: 25 Oct 2021 11:58 AM PDT So I get how changing the E field generates the B field, and vice versa and how that lets us create electromagnets. I even get how SR explains the changing reference frames so that what's a B field w.r.t. one coordinate system could be an E field w.r.t. another coordinate system. What I don't get is how "classical" (for lack of a better term) magnets come in. What's the reference frame where a bar magnet actually generates an electric force instead of a magnetic force? I know magnetism in "classical" magnets and things like iron is due to the spin of electrons and if "spin" in QM actually meant "spin" in the usual sense, it'd made perfect sense how this is ultimately the same thing as how electromagnets work. But it's been emphasized to me MANY times that the "spin" of a particle does NOT mean the particle is actually spinning, but instead spin it's own separate property that doesn't have a classical analog. OK, so then how does it have the same effect on the E field at an atomic level as macroscopic movement does to the E field on a macroscopic level? To be clear, I'm not disputing that "spin" doesn't mean the particle is actually spinning. I'm just very confused about a force generated by some mysterious quantum property with no classical analog is the same as the force generated by electromagnetics. [link] [comments]  |
| How was the mRNA in COVID-19 vaccine created? Posted: 25 Oct 2021 05:34 PM PDT I was wondering if they used CRISPR Cas-9 to edit the mRNA for the vaccine. I couldn't find any sources how specifically how they made the mRNA [link] [comments]  |
| Posted: 24 Oct 2021 08:35 PM PDT I have two fish tanks one half full of water with a turtle. The turtle needs to bask in a heat lamp for at least half the day to have the energy to go "hunting" around his terrarium. In a different cold water tank I have some very active and energetic fish that seem to swim non-stop and only have to eat every other day. [link] [comments]  |
| What makes a caterpillar become a moth or butterfly? Posted: 24 Oct 2021 09:46 PM PDT |
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