Plastic Wave Apparatus for Longitudinal and Transverse Motion Base_Octagonal Aluminum-handled collecting net swings lightweight

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

this cast double burette clamp secures two burettes side by side for back-titration and comparative analytical procedures

exposing the full urinary tract for combined anatomy and physiology teaching at 15 by 9 inches

and gas control on natural gas for high-temperature chemistry heating applications

Plastic Wave Apparatus for Longitudinal and Transverse Motion Base_Octagonal Aluminum-handled collecting net swings lightweightPlastic bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns, exposing the longitudinal and transverse components of wave motion mechanically.