The first seismograph was built by Zhang Heng nearly two millennia ago, in the days of the Han Dynasty. It could indicate the general direction of an earthquake’s epicenter by dropping a bronze ball ...

Flow charts are a common method of presenting information and one of the most difficult images to describe. Simple flow charts can be converted into nested lists with good results. Present the "boxes" ...

In Part 1 of this series, we covered the fundamental concepts and principles incorporated by flow meters along with various flow measurement methods used in mechanical flow meters. Part 2 covers the ...

In this quick tutorial, Gavin McMaster explains the basics of gamma exposure - a hidden force in the options market that can ...