Is the scientific community stupid?

Discussion in 'Political Opinions & Beliefs' started by ARDY, Nov 26, 2019.

  1. dairyair

    dairyair Well-Known Member

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    It proves nothing is not ZERO.
     
  2. dairyair

    dairyair Well-Known Member

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    something divided by 0 is infinity. AFAIK, no matter the numerator.
    But with other numbers, something divided by itself is always 1. But I don't know without looking it up what 0/0 =. It's either infinity or 1.
    Based on what I know, any number divided by itself is 1. So I'll go with 1.
     
    Last edited: Dec 1, 2019
  3. dairyair

    dairyair Well-Known Member

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    negative 5# of flour is NOT silly talk. For all that means is -5. So if you have your 5# of flour and use or lose all of it. You are out -5# of flour.
    So, your 5# of flour - the 5# of flour = 0.

    I'll let you figure out what happens to numbers when you add 0 or subtract 0. That's pretty simple.
     
  4. Robert

    Robert Well-Known Member Past Donor

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    0/0 is undefined
     
  5. Robert

    Robert Well-Known Member Past Donor

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    Okay, you purchase -5 lbs of flour at the store. Just how many loaves of bread can you make?
     
  6. dairyair

    dairyair Well-Known Member

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    If I purchase 10# and -5#. I can make 20 loaves of bread. With my 5# of flour that is left.
     
  7. dairyair

    dairyair Well-Known Member

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    The problem with dividing zero by zero

    One can argue that 0/0 is 0, because 0 divided by anything is 0. Another one can argue that 0/0 is 1, because anything divided by itself is 1. And that's exactly the problem! Whatever we say 0/0 equals to, we contradict one crucial property of numbers or another. To avoid "breaking math," we simply say that 0/0 is undetermined. Created by Sal Khan.

    Close. I guess, per this person, it's undetermined. Which I suppose could be undefined.
    But it isn't nothing. Which is something.
     
  8. ImNotOliver

    ImNotOliver Well-Known Member

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    Dividing by 0 is undefined.

    But 0/x is not. There are mathematical methods for determining 0/x=a, that don’t require x or a to be 0. And this is what this discussion is about. You are just trying to conflate what is undefined, with what is common. I have my suspicions as to why that should be.
     
    Last edited: Dec 2, 2019
  9. ImNotOliver

    ImNotOliver Well-Known Member

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    If you borrow flour and use it all up, owing the lender 5 pounds of flour, you have -5 pounds of flour. If you purchase, say 10 pounds of flour and pay your debt of 5 pounds you are left with 5 pounds. Or (-5) + (10) = 5
     
  10. Robert

    Robert Well-Known Member Past Donor

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    Democrats as a general rule are so cocksure only they are correct that they will define a bumblebee as were it an Eagle.

    I have a good background in Math including Calculus and Analytic Geometry. To get there, I took many courses in high school that were all Math including Trigonometry and so on. I realize many of the aged did not maintain a good interest in math, but in my case I maintained a very solid interest.
     
  11. Robert

    Robert Well-Known Member Past Donor

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    That is cool and a way to try to cleverly dodge my math question put to you.
     
  12. Robert

    Robert Well-Known Member Past Donor

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    Let's work with what you said.
    One can argue that 0/0 is 0, because 0 divided by anything is 0. Another one can argue that 0/0 is 1,
    0/0=0. Actually that is accurate. One can not argue 0/0=1 for a simple reason. 0 is not a quantity.

    Numbers to be sure can be a word or an integer. But all in all, integers rule. Why? Shorthand expressions.

    But if you want to know anything using 0, one way to show you like it is to start counting using 0 and not 1.

    0 is not meant to connote a thing, it is the absence of a thing. Positive numbers as things are a positive thing. 0 is called not defined.

    Say you have a million dollars. You can buy a positive number of cars, say 50 of them, but you never can buy -50 cars. That makes no sense. So the only solution to this problem is convenience. It is convenient to have negative numbers for various purposes. The only Convenience in the 0 is it is not a negative nor a positve. It is in a unique class that simply can't be described.

    To wit: At the store this morning, I bought 10 loaves of Bread. We all understand that. Say I claim to have bought negative 10 loaves, Somebody will look at me strangely and go Whaaa??? If I confuse them more declaring I bought 0 loaves of bread, they walk off making the screwy sign with their hand by their ears and tell others I need to be locked away.

    When I owned my machine shop, The men would go nuts and slap me silly if I told them their pay for the week was going to be -$200 since it would tell them all that I wanted the money they owed me. And they had done the work. Pay in say 1967 dollars.
     
  13. kriman

    kriman Well-Known Member Past Donor

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    The argument that zero, plus and minus is used in the numbering system proves nothing.
     
  14. ImNotOliver

    ImNotOliver Well-Known Member

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    Then you should know that differential calculus involves finding a value at a point as that point approaches zero, or more precisely, the differential approaches zero. And that solving quadratic equations often require one the set one side of the equation to 0.
     
    Last edited: Dec 2, 2019
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  15. ImNotOliver

    ImNotOliver Well-Known Member

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    When one counts one begins with 0 and count 1 for the first object, 2 for the second object....

    When a child is born, its age begins at 0 and does not turn 1 until after it has been alive for one year.
     
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  16. ImNotOliver

    ImNotOliver Well-Known Member

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    No, it is you refusing to see mathematics as they are used in the real world.

    If one overspends on one's checking account and ends up overdrawn one has a negative amount of money.
     
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  17. Robert

    Robert Well-Known Member Past Donor

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    Sorry but I do not overdraw the bank account. But were it overdrawn, I assure you The bank would give me no cash.
    Oh you seem to know these things. Would I have a negative billion dollars?
     
    Last edited: Dec 2, 2019
  18. Robert

    Robert Well-Known Member Past Donor

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    Chuckle, I shall not ever ask you to change a $100 bill for me.
     
  19. Robert

    Robert Well-Known Member Past Donor

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    We will show the readers what Differential Calculus is about.

    Differential calculus
    Area of study
    Description
    In mathematics, differential calculus is a subfield of calculus concerned with the study of the rates at which quantities change. It is one of the two traditional divisions of calculus, the other being integral calculus, the study of the area beneath a curve. Wikipedia

    By the way, this is also what my books say as well as my teachers when I was in college.
     
  20. ImNotOliver

    ImNotOliver Well-Known Member

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    Trump did. He went bankrupt owing a billion dollars.
     
    Last edited: Dec 2, 2019
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  21. Robert

    Robert Well-Known Member Past Donor

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    Could he pay his bills with his negative billion dollars?
     
  22. ImNotOliver

    ImNotOliver Well-Known Member

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    I topped out my school’s mathematical offerings in 9th grade. I went on to teach myself calculus and linear algebra, mostly from the books I checked out from the library. When I went to college, majoring in physics, I tested through all the required mathematical classes.

    There was a problem that I set up at an early age and endeavored to solve it. Here is the setup. There is a curved wall, like the stone fences at the University of Virginia, with a straight sidewalk running along it. It is night and a single street light is illuminating the the whole scene. If a person is walking down the sidewalk, what is the speed and location of the shadow of the person, on the wall.

    Using purely algebraic methods, I kept running into situations where the numerator would fall to 0, essentially eliminating a viable answer. Yet I knew I was getting close, if only there was a way to prevent the numerator from falling to 0. So, in desperation, I added a dummy variable to the numerator and denominator which allowed me to work through the 0 as the numerator problem and arrive at a solution, after subtracting out the dummy variables. I thought what I had done was was cheating the system and was bothered that maybe it was just luck that was giving me reasonable answers.

    I had feared Calculus because I had heard so many horror stories about how hard it was. But then I had run out of advanced algebra books and picked up a calculus book. It didn’t take long for me to realize that my adding in dummy variables, was essentially differential calculus. I had found calculus to be rather easy.

    They say, that as one gets older, that one’s mental health is improved by doing puzzles, like sudoku and crosswords. I have chosen instead to just work out problems in advanced mathematical textbooks, something that I greatly enjoy doing.
     
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  23. ImNotOliver

    ImNotOliver Well-Known Member

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    No he couldn’t, that is why he had to declare bankruptcy.
     
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  24. Robert

    Robert Well-Known Member Past Donor

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    Calculus is very easy.

    Matter of fact, I was maybe 19 and in college with Calculus as a course and working at a gas station to raise money to stay in college. One evening this elderly man wants me to gas his car but he talks to me. Finds out I have always had a lot of interest in maths. Finds out I am studying Calculus and asks me to review books he is then authoring. Turned out he worked at the Lab in Livermore. His purpose was to refresh engineers and scientists working at the Lawrence Livermore nuclear lab on topics like Calculus. He has me review his books and I give him my views. In his book he put my name in as a contributor. I do not know how wide the distribution of the books were but it sticks in my memory.
     
  25. Robert

    Robert Well-Known Member Past Donor

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    Kind of shoots your theory in the rear end.
     

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