Recent content by Dufoe

  1. D

    Confused about using the integral and infinitesimal?

    I don't understand what is meant by "derive the formula for finding the volume of a sphere that uses infinitesimals but not the standard formula for the integral"? Is this talking about Gauss or what? I'm completely self taught in calculus and I did three proofs already... the old cylinder /...
  2. D

    How does Jupiter protect Earth from comets and such?

    Because there are more orbits that do not intersect Earth than those that do.
  3. D

    Tall rotating cylinder near a black hole

    There was a paper on this many years ago. In this case the black hole is replaced by a super string. The paper was published and claimed that a rapidly rotating cylinder in the vicinity of a super string could violate accepted laws and travel backwards in time. It turned out that in principle...
  4. D

    What are some tips for hobbyists studying advanced mathematics and physics?

    Suggested topics to research; Logical Fallacies, Paradoxes, Thought Experiments, Mathematical Proofs. Get your math literacy past Differential and Integral Calculus and then spend some time on Newtonian Physics. Read about the Fibonacci Sequence. Read about Descartes and his Mechanical Universe...
Back
Top