Announcement

Collapse
No announcement yet.

5 Things You Didn't Know: Rain

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    5 Things You Didn't Know: Rain

    5 Things You Didn't Know About Rain


    1) Something cohesion something something surface tension. Yeah, ignore that. Here's what you didn't know - droplets of rain form because of the presence of microscopic dust in the atmosphere, which allows water vapor to condense around their nuclei, as it's said in scientific circles. Tiny specks of dirt, sea salt, pollen, and all manner of things that can be airborne (use your imagination) are generally responsible for what rain you get. Since those things get trapped in upper level winds, it's up to the rain to bring them back down to earth. You have been warned.


    2) Speaking of which, Cloud Seeding is a real thing, not just some X-File fantasy. It's been going on since the 1940's by governments and private industry. Basically, they fly up high and release plumes of dust or salts into the air to kickstart that condensation I mentioned, above. Acid rain, by the way, works the same way. But, as far as we know, that doesn't happen on purpose.


    3) That earthy smell when it starts to rain isn't the dust from cloud seeding (natural or artificial), though. Nor is it usually the smell of the dirt on the street and ground getting wet. It's technically called Petrichor, which is what scientists call "plant sweat," for lack of a better term, that gets activated from soil and natural surroundings upon first droplets falling from the sky.


    4) How many of you have had to drain a swimming pool when it rains really hard? Ever wonder how much water that is? Well, 1 inch of rainfall works out to be potentially thousands of gallons of water, depending on the footprint of your property. On that note, I lived on a small Caribbean island, for a while; our bathing water and flushing water was 100% stored rainfall. So, if you want to be a real environmentalist, think about installing a big tank to catch rainwater (check your local ordinances and building codes, first). Just remember that it's full of Saharan sand and possibly nuclear fallout, so don't drink it.


    5) The air is so thick you can cut it with a knife. Typically said on hot, humid days. What you probably didn't know, here, is that as the air temperature increases, it's able to sustain more water vapor. As air temperature decreases, it has to let go of excess water vapor. We see that many mornings and call it "dew," or "frost," depending when and where you live. When the 10 o'clock news reports humidity, it's talking about this exact phenomenon: relative humidity and dew point. As relative humidity reaches saturation with water vapor, it cannot hold on; the water vapor is deposited on surfaces (like the beer you pulled out of the fridge to keep you company while you pump down your overflowing swimming pool, or maybe a speck of dust at 30,000 feet). Note that being colder than the surrounding air isn't a requirement, but it certainly helps.



    Make sure to read Episode 1, and keep watching this forum for the next topic... As ever, please point out simple mistakes or factual errors.
    Consider for a moment that there is no meme about brown-haired, brown-eyed step children.

    #2
    Something something about mountains


    Comment


      #3

      Comment


        #4
        Reminds me of Enigma

        Comment


          #5

          Comment


            #6
            What makes you think you know, what I do and do not know?

            Comment


              #7
              Originally posted by DCS View Post
              Those ladies could SING. Before you had to be 98 pounds to be a popular singing, and the fact that you couldn't sing was fixed in post production with autotuning.

              Comment


                #8
                ?



                ?
                Dan Severn loves raping people.

                Comment


                  #9
                  Originally posted by Holy Moment View Post
                  ?



                  ?
                  I just knew you couldn't resist...
                  Originally posted by submessenger View Post
                  the smell of the dirt on the street
                  Now, all this thread needs is for your self-modeled protege to show up.
                  Consider for a moment that there is no meme about brown-haired, brown-eyed step children.

                  Comment


                    #10
                    Rain (or mist, dew etc for that matter) in Hawai'ian song and chant refers to sex!

                    Mt Wai'ale'ale on Kauai is frequently noted as "The wettest spot on Earth" with an avg of over 400 in/year and a record of 683 in 1982.
                    A few miles away in Waimea it's only about ~35 in/year.

                    Comment


                      #11
                      Originally posted by ChenPengFi View Post
                      Rain (or mist, dew etc for that matter) in Hawai'ian song and chant refers to sex!

                      Mt Wai'ale'ale on Kauai is frequently noted as "The wettest spot on Earth" with an avg of over 400 in/year and a record of 683 in 1982.
                      A few miles away in Waimea it's only about ~35 in/year.
                      Holy shit! 400 inches is insane. I lived on St. Thomas, we got about 40 inches a year. Seems like it rained every single morning, though.
                      Consider for a moment that there is no meme about brown-haired, brown-eyed step children.

                      Comment


                        #12
                        Up top:




                        and Waimea Canyon where some of the water heads south:

                        Comment


                          #13
                          Gorgeous.
                          Consider for a moment that there is no meme about brown-haired, brown-eyed step children.

                          Comment

                          Collapse

                          Edit this module to specify a template to display.

                          Working...
                          X