Microscope Slides with Single Concavity, 10-Pack Material_Plastic levitating above one another when

levitating above one another when oriented with like poles facing

Five 32mm ceramic ring magnets stack on a 150mm wooden dowel rising from a 5

Hand-cranked to convert mechanical work into electrostatic energy

supporting up to three pendulums simultaneously for harmonic-motion work

used to demonstrate capacitance and the discharge of stored static charge

Microscope Slides with Single Concavity, 10-Pack Material_Plastic levitating above one another whenSlotted with a central well on each glass, these concavity microscope slides hold liquid samples for hanging drop preparations and observation of specimens in suspension.