Category: history of science

  • Opinions on exorbitant cost of educative materials.

    I can’t understand why the books are made so much expensive. Sometimes, I wonder whether they really want profit, or they just want that no one reads these books. They claim that the Author has put so much work and he should be paid for this. But I think if the price of the book…

  • Mach’s Principle

    This is called Mach’s principle because Ernst Mach had questioned the validity of associating the rotation to immediate surrounding. Now to visually understand the Mach’s principle Weinberg stood up, in that video, and made a movement which explained how your hands rotate faster or slower. I didn’t understand this well enough so one night I…

  • The paradox of ideal minds

    Galileo is to be compared with himself only, a man who could industrialize science in 1600 and sciencify poetic dialogues in intended polemics, write scriptures of science and blaspheme scriptures of sacred ignorance all at the same time. Newton is only to be seen like a Weinberg who formalized so much of Physics that if…

  • I solved flyby anomaly of Galileo-I (1990)

    I solved flyby anomaly of Galileo-I (1990)

    Note that in summary Gravitational red/violet shift induced by earth’s gravitational field accounts for the anomaly by correctly adjusting for the positive energy the secondary has along its trajectory. This may not be the exact amount for anomaly since other small perturbations can also be accounted. But this is clearly the biggest factor that accounts…

  • a simple calculation for earth spin projected onto sun-earth orbit plane.

    a simple calculation for earth spin projected onto sun-earth orbit plane.

    Here is the earth-around-sun and earth-spin situation: Earth rotates around sun in a tilt of 23.5 degrees and earth rotates around itself with spin S. SO S is 84% along sun’s vertical and 16% along sun’s horizontal;