Curated OER
Experiments in Nanotechnology: Ferrofluids
Students explore the world of nanotechnology by synthesizing ferrofluids in a series of chemical reactions. In small groups, they follow the procedure to create the ferrofluids using precise measuring techniques. They test the resulting...
Curated OER
Comparison of Tangential (Plain Sawn) to Radial (Quarter Sawn)Dimensional Change When Moisture is Added or Removed
Learners investigate the dimensional changes that occur in wood samples when moisture is added and subtracted. The shapes and sizes of the pieces are compared and contrasted to decide which is best for cabinetry construction.
National High Magnetic Field Laboratory
Magnet Academy: William Crookes
English scientist William Crookes was very innovative in his investigations with vacuum tubes and designed a variety of different types to be used in his experimental work. Crookes tubes are glass vacuum chambers that contain a positive...