Ø Milk contains traces of tryptophan - the amino acid
also found in turkey that induces sleep - and this, in combination with the
psychological association of warmth with relaxation, can induce sleep.
Ø Upper-level ozone (in the stratosphere) protects us
from dangerous UV rays; lower-level ozone (in the troposphere) contributes to
smog.
Ø Chocolate contains the alkaloid stimulants caffeine
and theobromine, the latter being highly toxic to dogs.
Ø Though England's Earl of Sandwich (1718-1792) wasn't
the first to eat meat between two slices of bread, his fondness for it
generated its famous name.
Ø Coffee likely originated in Ethiopia around the 15th
century.
Ø Bangalore, India's third-largest city, is world famous
as a center of information technology.
Ø Bones fuse together over time, decreasing the number
of bones from about 350 in a newborn to 206 in an adult.
