OR Logic Gate, 2-Input Pack Size_7 anchoring retort stands and apparatus

anchoring retort stands and apparatus to the edge of a classroom workbench

Pack of 10 Stoddard test tube clamps in stainless steel with finger grip securely holds test tubes during heating

this three-dimensional Paramecium sectional model reveals internal structure and ciliate organization for microbiology teaching

Teaches proper brushing technique through a 3x life-size jaw model with gums and oversized toothbrush

transparent housing revealing the hydropower conversion inside the casing

OR Logic Gate, 2-Input Pack Size_7 anchoring retort stands and apparatusLED indicating 2 input OR gate module showing HI and LO states with red and green LEDs and a printed truth table on the board, verifying the Boolean disjunction operation by direct observation.