This is Warren Kwok's Internet note pad, electronic diary, online rubbish journal, whatever you might name it ! It is an archive of my random thoughts in a chronological order. I am not good at reporting boring things and change them to lively. If you find this blog boring, sorry that it is your problem.
Use an app instead of a calculator
When working on radio propagation distances, I need to convert between miles and kilometers. What comes to my mind is not a calculator. It is about downloading an app. Shit, what a useless person I am on this planet.