US$ 148.84
letting students vary the moment arm distances on either side and find the balance point for any combination of masses
Closed ring design provides continuous support on this plated mild steel retort ring
Eleven-ohm 5A air-cooled rheostat with constantan winding on a 300x44mm vitreous-enameled steel tube and a slide-bar carriage carrying a phosphor-bronze contact
this insulated 4mm-stackable safety lead carries up to 12A through nickel-plated split-hollow pins for branched-circuit student work
3D Plant Cell Division (Meiosis) Model, 24 x 18", Hand-Painted Size_Small letting students vary the momentThree dimensional plant meiosis model traces chromosome pairing, crossing over, and reduction division through successive hand painted stages on a mounted base.
US$ 148.84
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