Copper-Iron Thermopile Subcategory_Sensors and Probes Double-concave glass lens at 3-inch

Double-concave glass lens at 3-inch diameter and 200mm diverging focal length

supplying the plastic-coated counterpart to bare copper for circuit wiring where exposed conductor must be avoided

Jumbo three-dimensional frog dissection model with keycard demonstrates amphibian anatomy and organ systems for detailed vertebrate teaching

and cervical spine for head and neck anatomy teaching

Used for heavy-gauge coil construction and electromagnet windings

Copper-Iron Thermopile Subcategory_Sensors and Probes Double-concave glass lens at 3-inchSeven junction copper and iron thermopile from four 130mm wires of each metal, the series arrangement amplifying the Seebeck voltage for radiant heat detection experiments.