History of the second

Produced by Canon C100 and published by CUNY Graduate School of Journalism

Time has gotten ahead of us. We measure our lives in years, paychecks by the month and days by how long our planet spins around. Most of us think it all begins with a second. But the meaning and length of a second has changed over time, whether for the sailers who crossed oceans first or contemporary astronomers seeking truth from across the cosmos.