50g Iron Cylindrical Hooked Weight Waves & Oscillation_Wave Motion and acetate strips for hollow-conductor

and acetate strips for hollow-conductor work

Aluminum-handled collecting net swings lightweight through tall grass and air sweeps for classroom field trips and introductory entomology sampling work

Used to receive Morse code signals as audible clicks

and a 10-well comb for DNA gel runs in introductory molecular biology

Cast iron 500g mass carries a retractable hook for suspension from spring scales

50g Iron Cylindrical Hooked Weight Waves & Oscillation_Wave Motion and acetate strips for hollow-conductorPowder coated for rust resistance, this 50 g steel cylindrical hooked weight features a top hook and bottom slot for tandem stacking during classroom physics and calibration work.