ParticleLarge Sized Chart 59x 42inch, inchcludinchg more about neutrinchos and a section on Unsolved Mysteries inchcludinchg dark matter and dark energy.
Demonstration Transformer placed in Gratnells tray, A large scale transformer, ideal for classroom, The coils, fitted with intermediary outputs providing many transformation ratios, Weight (lb): 27.7, Length (in):17.7, Width (in):15.4, Height (in):9.8