ON April 10 Colonel R. E. Crompton delivered the annual “James Forrest” lecture of the Institution of Civil Engineers, an abstract of which is given below.

The lecturer recalled Col. Crompton's James Forrest lecture in 1905 entitled “Unsolved Problems in Electrical Engineering,” and proposed to deal with similar matters from the present point of ...

Turbulence has been described as the oldest unsolved problem in physics. The German theoretical physicist Werner Heisenberg allegedly said on his deathbed, “When I meet God, I am going to ask ...