14-Piece Stainless Steel Slotted Mass Set Subcategory_Scales and Balances Hand-driven Newton's color disc that

Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing

Built for home experiments and themed pretend play

this animal cell meiosis model reveals chromosome pairing

and torsional balance

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14-Piece Stainless Steel Slotted Mass Set Subcategory_Scales and Balances Hand-driven Newton's color disc thatRacked display of fourteen precision machined stainless steel slotted masses totaling 1110 grams from 1 to 100 gram pieces, organized for classroom physics investigations in mechanics.