That they are interesting...philosophically speaking ofcourse.
The names of the philosophers are Thales, Anaximander, and Anaximenes.
There is no official collective noun for philosophers. A "group" of philosophers is generally the accepted collective noun.
Greek philosophers/astronomers thought that the constellation "perseus" looked like a human shape, and since "perseus" was a famous Greek hero, they named it after him.
The Military Philosophers was created in 1968.
The Philosophers' Magazine was created in 1997.
The Worldly Philosophers was created in 1953.
Philosophers' Imprint was created in 2001.
No, not philosophers.
alchemists only believed that their was a philosophers' stone
No, the spa philosophers were not from Sparta. The spa philosophers were actually ancient Greek philosophers who discussed philosophical ideas while relaxing in the hot springs at places like Athens or Corinth.
Yes, Kant used Geometry to support his theories about space being a construct of the mind a priori. All philosophers make references to math, as it's basically sequentially logic. I could go on spouting mis-facts all day, but somebody should eventually come along and answer your question more thoroughly.
Modern philosophers, no. If they were, they'd be theologians, or idiots for short.