Solar ray collector, magnetic

For experiments on the working principleof a solar collector. Made up of: 2coated copper plates, black and white; 1transparent plate made of Macrolon; 1copper tube coil; Support plate withmagnetic film, threaded bolts and knurled nuts to hold plates, copper blockswith an 8 mm bore hole to hold thermometers or temperature sensors. Dimension150 x 150 mm