I compute the eccentricity of the Earth's orbit based on the observation that there are more days between spring and fall than between fall and spring.
Latest blog posts
A quick one containing the derivation of the Rossby modes of a 2d fluid on the surface of a sphere.
Going back to this famous paradox, I talk about the concepts of motion, contradiction and dialetheism
Reacting to the actuality of the coronavirus pandemic that we are currently living through, I present some simplified mathematical models used in epidemiology.
I work out some of the properties of the Gaussian function from its generating differential equation including its first integral.
A small explanation of the exponential function and its relation to the idea of perpetual growth.
Pursuing an idea from an older post, I look at one of the simplest statements of Zeno's paradox and derive known results about infinite series of real numbers.
I solve a relatively simple problem of geometry inspired by a culinary example from everyday life and find that the final answer has no closed analytical form. This illustrates how unexpected difficulties can emerge even in simple problems.