26:06From the PhD Lab: How do biofilms help keep bacteria alive? - with Josh Horton
The Royal Institution
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/in-in-grade-12-ncert/xd340c21e718214c5:definite-integrals/xd340c21e718214c5:definite-integral-as-the-limit-of-a-riemann-sum/v/estimates-of-area Ranking estimates of area using Riemann sums and definite integrals More free lessons at: http://www.khanacademy.org/video?v=gIQgnSfUB6E
Published 2014-07-16 · Watch on YouTube ↗
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