US$ 137.56
Hundred-ohm 1
a battery-free source of partial vacuum for bell-jar demonstrations without external power
capturing pendulum periods
this three-dimensional Paramecium sectional model reveals internal structure and ciliate organization for microbiology teaching
Right Angled Glass Prism, 38mm Type_Round End Hundred-ohm 1Mid size right angle glass prism at 1. 5 inch (38mm) size, the 90 45 45 degree faces redirecting light through right angles for total internal reflection and image inversion demos.
US$ 137.56
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