The Earth Institute Columbia University24d
A New History of the Ancient Greek City-State
The ancient Greek polis, or city-state, was a resilient and adaptable political institution founded on the principles of citizenship, freedom, and equality. Emerging around 650 BCE and lasting until ...
The Conversation1mon
Three letters, one number, a knife and a stone bridge: how a graffitied equation changed mathematical history
Hamilton also developed a compact notation to make his equations concise and elegant. He used a Greek letter to denote a quaternion or vector, but today, following Heaviside, it is common to use a ...
Investopedia9mon
How to Use a Letter of Intent (LOI) to Make a Deal
A letter of intent (LOI) is a document declaring the preliminary commitment of one party to do business with another. The letter outlines the chief terms of a prospective deal. Commonly used in ...
BBC3y
Covid: WHO renames UK and other variants with Greek letters
From now on the WHO will use Greek letters to refer to variants first detected in countries like the UK, South Africa and India. The UK variant for instance is labelled as Alpha, the South African ...