Borosilicate Glass Tubing, 20 inch, 0.28 inch OD and 0.19 inch ID Micropipets_Variable Volume demonstrating how a crane lifts

demonstrating how a crane lifts loads through the mechanical advantage of a large wheel turning a small axle

showing how the center of gravity of a solid passes through its support polygon

Silkworm longitudinal section reveals lepidopteran anatomy

1-ohm steps across ten dial positions

Twenty-centimeter brass straight crucible tongs combining corrosion resistance with extended reach for handling crucibles at greater distance from a muffle furnace mouth

Borosilicate Glass Tubing, 20 inch, 0.28 inch OD and 0.19 inch ID Micropipets_Variable Volume demonstrating how a crane liftsBorosilicate glass tubing measures 20 inches with 0. 28 inch outer diameter for glassblowing, apparatus construction, and laboratory procedures.