2-Plate Magnetic Field Demonstrator Set Foodsafe Continuously motor-driven to supply a

Continuously motor-driven to supply a steady high-voltage source

visualizing the relationship between local motion and seismic recording for geology lessons

this fan-shaped nylon brush rides a twisted stainless steel handle flexible enough to bend around difficult interior angles

Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary

Cutaway working steam engine model with piston

2-Plate Magnetic Field Demonstrator Set Foodsafe Continuously motor-driven to supply aTwo transparent 153 x 76 x 6mm plates, each fitted with 98 iron rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near.