Most Relaxing Facts About Time | Fall Asleep Fast

Before there were clocks, there were shadows. Before there were
calendars, there were stars. Tonight we travel the full length of
human history through one of its oldest and most quietly
astonishing stories — the story of how we learned to measure
time. From ancient Egyptians reading the rise of Sirius to
predict the Nile flood, to Galileo watching a chandelier swing in
a cathedral and discovering the principle behind the pendulum
clock, to the atomic clocks aboard GPS satellites keeping time to
within one second every three hundred million years — this is a
deep, slow, cinematic journey through the ages. One hundred
facts. Thousands of years. All the time in the world to drift
off.