RGB/CMY Mounted Color Filter Set, 50 x 50mm, 6-Piece Racks & Stands_Flask Stands Speed-controlled 6V motor driving two

Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency

these plastic forceps provide precision grip for specimen manipulation without damaging delicate tissues or structures

the flywheel light enough to drive by breath for hands-on reciprocating-engine study

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

this metal wave apparatus pairs the rotary handle with a degree scale so students can read phase against vertical displacement

RGB/CMY Mounted Color Filter Set, 50 x 50mm, 6-Piece Racks & Stands_Flask Stands Speed-controlled 6V motor driving twoThree primaries (red, blue, green) and three secondaries (cyan, magenta, yellow) sit in 50 x 50mm mounts, supporting both additive and subtractive color demonstrations in optical box setups.