"How long is a piece of string?"

A BBC Horizon documentary with Alan Davies (of QI: Quite Interesting fame) exploring the intricacies of measurement - from rulers to thought experiments and quantum mechanics.

Overall, the science and maths is a tad over simplified; I feel viewers could handle a little more detail.

Via

The Messenger Lectures - Richard P. Feynman

Richard Feynman's lectures on physics at Cornell University in 1964. Microsoft Research's Project Tuva has added to these videos by including commentary, notes and extras. All seven videos are available here. 


Note: The site linked above requires Microsoft Silverlight to be installed for your browser.


Alternatively, you could watch the videos on YouTube (without all the Project Tuva additions though):

Conflict Resolution: Newton, Bernoulli and 'Lift'

A professor of mine from university put together a superb essay for The Physics Teacher clarifying the concept of aerodynamic lift and how it can be best described by either Newton or Bernoulli's laws. Although this targets educators, undergrad engineering/physics students would probably appreciate the accessibility of this essay.


-k