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Science: Everything explained by PV=nRT, F=ma=Gm(1)•m(2)/r^2

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  • https://m.youtube.com/watch?v=FUHkTs-Ipfg

    I was thrilled to have gotten this right but without having known the answer or that it was a trick. I thought it was just one of those "kids are dumb" but didn't know the answer wasn't even listed initially. !
    Code:
    As of 9/21/10:         As of 9/13/10:
    College Hockey 6       College Football 0
    BTHC 4                 WCHA FC:  1
    Originally posted by SanTropez
    May your paint thinner run dry and the fleas of a thousand camels infest your dead deer.
    Originally posted by bigblue_dl
    I don't even know how to classify magic vagina smoke babies..
    Originally posted by Kepler
    When the giraffes start building radio telescopes they can join too.
    He's probably going to be a superstar but that man has more baggage than North West

    Comment


    • Salt glaciers on Mercury.
      Cornell University
      National Champion 1967, 1970
      ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
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      Comment


      • This is fascinating.
        Cornell University
        National Champion 1967, 1970
        ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
        Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

        Comment


        • Originally posted by Kepler View Post
          This is fascinating.
          The other offshoot of that is the massive advancement in explosion, and directional ones, specifically. Which meant that you could penetrate a tank with less stuff as well as use small amounts of explosives to take down a building.

          While the Manhattan project did result in the atomic bomb, the side offshoots were quite beneficial, too.

          Comment


          • Originally posted by MichVandal View Post

            The other offshoot of that is the massive advancement in explosion, and directional ones, specifically. Which meant that you could penetrate a tank with less stuff as well as use small amounts of explosives to take down a building.
            Are all those "shaped charges"?
            Cornell University
            National Champion 1967, 1970
            ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
            Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

            Comment


            • Originally posted by Kepler View Post

              Are all those "shaped charges"?
              Yes.

              Comment


              • Originally posted by FadeToBlack&Gold View Post

                They're playin' God with mutant mosquitoes, don'tcha know. It ain't natural.
                USDA scientists down in Texas about 60 years ago eradicated screwworms by releasing irradiated (sterilized) male flies. We then moved the project to Mexico and eventually to Central America.

                Bye bye screwworms.

                https://en.m.wikipedia.org/wiki/Edward_F._Knipling
                CCT '77 & '78
                4 kids
                5 grandsons (BCA 7/09, CJA 5/14, JDL 8/14, JFL 6/16, PJL 7/18)
                1 granddaughter (EML 4/18)

                ”Any society that would give up a little liberty to gain a little security will deserve neither and lose both.”
                - Benjamin Franklin

                Banned from the St. Lawrence University Facebook page - March 2016 (But I got better).

                I want to live forever. So far, so good.

                Comment


                • As is obvious from my posts, I often come here to test stupid so I can be less so in prod.

                  Think of the "always has been" meme. Will the astronaut be killed? Let's assume the cartridge is airtight. The hammer causes the explosion and the bullet exits the barrel. The bullet will actually travel faster and farther with less gravity and no air resistance, right? So it should have even greater velocity, thus greater momentum, thus greater stopping power?
                  Cornell University
                  National Champion 1967, 1970
                  ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
                  Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

                  Comment


                  • Interesting. You don't even need oxygen. Bullets have their own oxidizer.

                    If you are in the complete absence of gravity for the entire flight path, it would travel forever.

                    I would change the convention though, the bullet has only realized its maximum chemical-to-kinetic energy conversion, or rather, it hasn't had to pay the energy toll to resistance and gravity.

                    that said, you would also lose some because of the kick. On the ground, we can act as a hard backstop for the gas to push against. In space there isn't a backstop. So your energy would be split at some ratio between moving the shooter backwards and the bullet forwards. I'm curious if that's just a simple ratio of masses but I'm guessing the momentum would be the same. So you might have less velocity? That can't be right, right?
                    Code:
                    As of 9/21/10:         As of 9/13/10:
                    College Hockey 6       College Football 0
                    BTHC 4                 WCHA FC:  1
                    Originally posted by SanTropez
                    May your paint thinner run dry and the fleas of a thousand camels infest your dead deer.
                    Originally posted by bigblue_dl
                    I don't even know how to classify magic vagina smoke babies..
                    Originally posted by Kepler
                    When the giraffes start building radio telescopes they can join too.
                    He's probably going to be a superstar but that man has more baggage than North West

                    Comment


                    • Originally posted by Kepler View Post
                      As is obvious from my posts, I often come here to test stupid so I can be less so in prod.

                      Think of the "always has been" meme. Will the astronaut be killed? Let's assume the cartridge is airtight. The hammer causes the explosion and the bullet exits the barrel. The bullet will actually travel faster and farther with less gravity and no air resistance, right? So it should have even greater velocity, thus greater momentum, thus greater stopping power?
                      Probably indistinguishable from what happens on earth. The explosion->presssure increase behind bullet->bullet accelerates rapidly due to pressure chain of events happens so fast that air resistance would be negligible. The bullet would therefor exit the gun at the same velocity as on earth. Then, while there would be no wind resistance (drag), over such a short distance the drag is practically negligible anyway, so the bullet will strike the shootee at almost exactly the same velocity as on earth.

                      As for the shooter, he is not floating in space, he’s standing on the moon. So I would assume that he can brace himself adequately and would not go hurtling backwards.
                      If you don't change the world today, how can it be any better tomorrow?

                      Comment


                      • Forgot about the moon

                        so what would happen in a gravity-less environment?
                        Code:
                        As of 9/21/10:         As of 9/13/10:
                        College Hockey 6       College Football 0
                        BTHC 4                 WCHA FC:  1
                        Originally posted by SanTropez
                        May your paint thinner run dry and the fleas of a thousand camels infest your dead deer.
                        Originally posted by bigblue_dl
                        I don't even know how to classify magic vagina smoke babies..
                        Originally posted by Kepler
                        When the giraffes start building radio telescopes they can join too.
                        He's probably going to be a superstar but that man has more baggage than North West

                        Comment


                        • TIL there are Indian dialects in which we-including-you and we-excluding-you are different persons. It is called clusivity.

                          It never even occurred to me as a concept until I read that; now I can't not see it.



                          Last edited by Kepler; 02-18-2024, 10:45 PM.
                          Cornell University
                          National Champion 1967, 1970
                          ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
                          Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

                          Comment


                          • Isn't that true of Spanish as well? Or am I misunderstanding?
                            Code:
                            As of 9/21/10:         As of 9/13/10:
                            College Hockey 6       College Football 0
                            BTHC 4                 WCHA FC:  1
                            Originally posted by SanTropez
                            May your paint thinner run dry and the fleas of a thousand camels infest your dead deer.
                            Originally posted by bigblue_dl
                            I don't even know how to classify magic vagina smoke babies..
                            Originally posted by Kepler
                            When the giraffes start building radio telescopes they can join too.
                            He's probably going to be a superstar but that man has more baggage than North West

                            Comment


                            • Originally posted by dxmnkd316 View Post
                              Isn't that true of Spanish as well? Or am I misunderstanding?
                              No hablo espanol.

                              It appears adding "otros" to nos and vos achieves clusivity. I don't know if that's only a feature of formal speech.


                              Last edited by Kepler; 02-18-2024, 10:59 PM.
                              Cornell University
                              National Champion 1967, 1970
                              ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
                              Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

                              Comment


                              • Here's another fun grammatical-person: obviative.

                                Bob's wife shot him (Bob) vs Bob's wife shot him (some other guy we've been talking about, not Bob).
                                Cornell University
                                National Champion 1967, 1970
                                ECAC Champion 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010
                                Ivy League Champion 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983, 1984, 1985, 1996, 1997, 2002, 2003, 2004, 2005, 2012, 2014, 2018, 2019, 2020

                                Comment

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