This is an easy calculation, just integrate the gravitational force to get GMm/r where r is the radius of the earth about 6378 km (or 6378*10^3 meters), M is the mass of the earth 5.9736*10^24 kilograms, G is the gravitational constant 6.67*10^(-11), and let us assume that our weight is […]
Monthly Archives: November 2019
3 posts
My wife bought a flimsy wine opener and it has proved useful in opening corked wine bottles. You may wonder why wineries still use corks and indeed cheaper wines come with spigots or twist off caps. My opinion is that it is a old fashioned warning to oeniphiliacs, or maybe […]
I thought about my privacy, but I really didn’t care. I just really needed e-mail, and they were giving it away free. A gift that keeps on giving, an offer I couldn’t refuse. The internet because of its machine to machine construction encourages one to feel anonymous. When you communicate, […]