US$ 45.00
Pairs a 75mm aperture with a 150mm focal length on a convex glass surface
this small anemometer measures wind speed during earth-science fieldwork and classroom weather investigations
equipped with heavy sliders whose fine index marks give repeatable readouts for image-formation and focal-length measurements
for determining specific heat of steel by electrical heating
sized to detect bidirectional milliampere currents in induction
Set of 24 Metal & Alloys, Wooden Case Glassware_Glass Beakers Pairs a 75mm aperture withSet of 24 metal and alloys, supplied in wooden case with glass top Set of 24 metal and alloys, supplied in wooden case with glass top. Each specimen labelled with name.
US$ 45.00
US$ 124.50
US$ 107.60