Synthetic Permanent Slide Mounting Medium, 500mL Chemical_Sodium Sulfate Spare 3-inch O-ring drive belt

Spare 3-inch O-ring drive belt sized to the smaller Van de Graaff pulleys

which is known to the State of California to cause cancer and birth defects or other reproductive harm

providing the lowest-value reference in the line for low-resistance Ohm's-law and bridge work

Cast-metal Newton's-Second-Law apparatus on a 10 by 2

Respirometer apparatus tracks gas exchange in living cells

Synthetic Permanent Slide Mounting Medium, 500mL Chemical_Sodium Sulfate Spare 3-inch O-ring drive beltSynthetic resin 500mL alternative to natural Canada balsam, the larger volume permanent mounting medium for histology and microscopy slide preparation with consistent optical clarity over time.