Improved Wimshurst Machine Item Type_Spoon and staging during thermal cycling

and staging during thermal cycling workflows in molecular biology

and larynx model shows the full upper respiratory-cardiac anatomy in anatomical position for teaching pulmonary and cardiovascular systems

electromagnet release

One-meter wooden lever graduated in centimeters on a knife-edge fulcrum base

Square-section aluminum tube 1 meter long with side graduations and four sliding riders

Improved Wimshurst Machine Item Type_Spoon and staging during thermal cyclingImproved Wimshurst electrostatic generator with two counter rotating sectored discs that build high voltages through electrostatic induction for spark gap demonstrations.