The physics of a bicycle accident
Now it happened. After about 1,700 km on the bike this year, I had an accident. In Kuchl (in most beautiful Salzburg, Austria), I did a relatively sharp turn on starting when the front wheel came...
Newton’s Law of Universal Gravitation
The force of gravity holds the Earth and the Moon in their orbits and our feet on the ground. The physical law behind it that Isaac Newton came up with is almost deceptively simple. Still, it...
Separation of Variables
Whereas most differential equations can only be solved by way of numerical approximation, some have a mathematically exact – analytical – solution. The separation of variables lets us solve the differential equation of exponential growth analytically....