05:47
Going with the Flow: Measuring Ocean Currents
Given the importance of ocean currents in the marine environment, oceanographers have tried for years to accurately measure them. Advances in current meters and acoustic technology have made the process easier, but the task of measuring currents rem...
06:12
Mathematics and Change
Philosopher Stephen Toulmin explains that contrary to what many believe, mathematics and mathematical assumptions can change "deeply" over time. Professor Toulmin notes that, "...you will find that, beyond a certain point, the link with what we had ...