In my recent post about calculating the speed of light, I mentioned Ole Roemer's calculation in 1676. The basic idea uses the orbit of one of Jupiter's moons. The orbital period is constant, but there ...

While Excel is a powerhouse for data analysis and manipulation, complex workbooks with tons of formulas can slow down your workflow in no time. After all, nobody wants to wait around for their ...

A team from Los Alamos National Laboratory was able to use the microphone and a laser to calculate the speed of sound on Mars, and it's surprisingly slow. Share on Facebook (opens in a new window) ...