Economy Joule's Calorimeter Item Type_Dissection Equipment Concave glass mirror at 75mm

Concave glass mirror at 75mm diameter and 150mm focal length on a ~3mm-thick blank

sized as both a teaching demonstrator and a small-footprint bench AC supply

tapered spout

letting students send and receive Morse between two operators to demonstrate how electrical signals carried written language

with masses between 50 and 400g for 5N spring-scale suspension work

Economy Joule's Calorimeter Item Type_Dissection Equipment Concave glass mirror at 75mmMeasures the mechanical equivalent of heat in a classic Joule style economy calorimeter, translating known mechanical work into a temperature rise in a water filled inner vessel.