Hippocrates and Galen advanced the concept of humorism, a theory which held that we get sick from imbalances of the four basic substances within the human body, which they identified as blood, phlegm, black bile and yellow bile.
If I bought a pair of $190,000 Focal Grande Utopia EM and found out the beryllium isn't any more pure than a pair of $2700 speakers, I'd be very upset. I would also be upset if the beryllium tweeters in my $190K speakers cost less than diamond tweeters in a pair of $5K speakers.
Beryllium is a chemical element known to have an atomic number of 4 and atomic symbol of Be. Used in ancient civilizations, beryllium as an element was discovered during the 1700s and 1800s. Contributing scientists include Rene-Just Hauy, Louis Nicolas Vauquelin, Antoine Bussy, and Friedrich Wohler.acts About Beryllium. Fact #1: It is considered to be one of the lightest elements, in terms of weight. Fact #2: During the discovery of beryllium in the 1700s, it was first learned that the beryl mineral (when combined with emerald) produced a sweet-smelling substance.