9 responses

  1. Muzamil
    October 17, 2016

    Sir,i want knw that can we say a theory as law

    Reply

  2. Wolowizrd505
    January 11, 2017

    The explanation is concise and easy to understand. Although I would recommend a change. Laws can have exception as well as theories. For instance, the ideal gas law has many exceptions that vary from the precise behavior dictated by the law.
    Please see this article by the University of California Berkley for a citation of this. Berkley is, undoubtedly, a credible source in this matter.
    http://undsci.berkeley.edu/teaching/misconceptions.php#a2

    Reply

    • Ray Riedel
      October 7, 2017

      I disagree with your statement about exceptions to the ideal gas law. As the article you reference explains, there are no ideal gases, the law is not an observation of ideal gases. The law defines an ideal gas. This law is useful in approximating REAL gas behaviors. gases approach this behavior when they are at less than 2x atmospheric pressure and more than (if I recall correctly) 2x their critical temperature. Assuming ideal gas behavior tends to be remarkably accurate (often less than 10% error) at pressures in the thousands of psi and in engineering greatly simplifies polytropic and supersonic calculations to within known tolerances.

      There are no ideal gases, so no ideal gas is observed to be an exception to the law.

      Reply

      • blacknickyminaj
        September 25, 2018

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  3. Alyan
    August 25, 2017

    If hypothesis is falsefied by the experiment it becomes theory

    If hypothesis is not falsefied by the experiment it becomes law

    Reply

    • Ray Riedel
      October 7, 2017

      I love your synopsis. I was surprised by the articles statement that a law will always be true, and that there is no hierachy between hypothesis, theory, and law. This despite mentioning a hypothesis can become theory. I see a hierarchy in “not sure, but might be true”, “true most of the time”, and “universally true for all cases and for all time.” But hey, I’m an engineer not a doctor.

      Reply

  4. Karamat Ali
    March 15, 2018

    If a theory can be rejected or not?

    Reply

  5. Jordan Kong
    June 13, 2019

    In the early 20th century, we have Einstein’s Theory of Relativity, Quantum Theory, there are all these theories, we no longer use the term “Law” to describe the conduct of nature. They are for several reasons. First, these “Theories” are as well tested and as successful as those “Laws”, so we could call them laws if we want to so that it would be consistent with the past generations. But what happens during the early 20th century was we came to learn that whatever it is we determined to be true about nature may only be a subset of a larger truth (i.e. Newton’s Law of motion describes the behavior of matter under low gravity, yet fail to demonstrate it for velocity near the speed of light; Einstein’s “Theory” took over for describing in higher velocity), but it doesn’t discard the preceding law, instead, enhancing our understanding over which the law applies. So, in the modern time, if we call a well tested hypothesis as a theory, back in the 18th century they would be calling that the law. Just in case you wonder, experimentally verified theories does not get rejected or overturned, our understanding will only be enhanced by more discoveries that we do in understanding the conduct of nature.
    -From “Just an engineer”

    Reply

  6. oo
    September 14, 2019

    AUSTIN 3:16

    Reply

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