Pitch is a liquid, finally drips after 69 years
Friday, July 19, 2013 - 16:30
in Astronomy & Space
KRISTEN BUTLER, UPI.com A 69-year long experiment finally yields results -- tar pitch is world's slowest-moving liquid.
KRISTEN BUTLER, UPI.com A 69-year long experiment finally yields results -- tar pitch is world's slowest-moving liquid.