The Clean Room: Inside Look | Cosmos: A Spacetime Odyssey

are there any mementos from when the
earth was worn objects that could
possibly tell us its true age one of my
favorite stories in the new series is
the story of man named Clair Patterson
the American scientist who went in
search of the age of the earth he
stumbles on the realization that led
which is in meteorites and one of the
key elements that allows you to date a
meteorite it’s everywhere in the
environment coming from sources that are
not cosmic and he’s concerned about this
because he knows lead is bad for you and
it was his study trying to find the age
of the earth that led us to discover
that led in the environment then
primarily from auto emissions leaded
gasoline was killing us he realized that
he had to stand up and fight to end this
horrendous danger to all of us and is
suddenly transformed from a research
scientist to a citizen activist that is
correct
you