Large Magdeburg Hemisphere Plastic Labware_Plastic Burettes closing when a magnet is

closing when a magnet is brought near to introduce magnetic-actuated switching alongside hand-operated switches

and intervertebral disc anatomy for musculoskeletal system teaching

and triangle waveforms from 1Hz to 100kHz at 0-10V peak-to-peak

yielding a flatter field profile for plane-of-symmetry demonstrations

Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9-inch frame for organized storage during chemistry and biology experiments

Large Magdeburg Hemisphere Plastic Labware_Plastic Burettes closing when a magnet isLarge Magdeburg hemispheres demonstrating the force of atmospheric pressure through vacuum sealed halves that resist tug of war separation in classroom scale physics demos.