US$ 144.97
and critical-angle behavior
visualizing the relationship between local motion and seismic recording for geology lessons
this nickel-plated brass cork borer set cuts clean holes in cork
and support rod — the parallel-numbered twin of PHVSPEN for energy
Wide sound-radiating surface on this lightweight tuning fork lets it stand upright on its own footprint
Standard Magnetic Field Demonstrator Subcategory_Microtomes and critical-angle behaviorPlastic housed plotting compass field demonstrator that maps the magnetic field configuration in one or two dimensions whenever a permanent magnet is placed against it.