Institute of Electrical and Electronics Engineers
Heart of the Matter
Hands-on experience with valves and water flow supports young researchers' understanding of valve operation. Attached resources for learners are text-dense; I'd break up the text into smaller pieces for groups to read and present...
Nobel Media AB
The Nobel Prize: Lord Rayleigh Biographical
At this site from the Nobel e-Museum, you can read about the scientific work of Lord Rayleigh (1842-1919 CE). This article includes information on his education and experiments with light and sound waves.