Engineering topics
Publications and source records attributed to Shull, Robert D..
The objective is to demonstrate the magnetic characteristics of the new superconducting oxides with transition temperatures above liquid nitrogen temperature (77 K). The first task was to find out whether YBa2Cu3O7-x is magnetic at liquid nitrogen temperature, and if so, what the sign of its magnetic susceptibility is. Details of the experimental procedure are given.
The objective is to provide a low cost, simple experiment for either demonstration purposes or as a laboratory experiment that will teach the student the importance of the thermal-mechanical history of a metallic alloy in determining that material's mechanical behavior. Hairpins are subjected to various treatments. The experimental equipment and procedures are discussed.
This experiment was originally designed and performed by Lord Kelvin (William Thomson) in the late 1800's to demonstrate the creation of an electric potential simply by means of dividing up a body of flowing water. The objective is to demonstrate the power of electrical forces in a material as common as water and to help teach the student that even simple, well understood phenomena sometimes present unexpected results that, at first thought, defeat explanation. The experimental equipment and procedure are explained.