US$ 245.00
75 by 3 inch wooden block for physics coursework
this LDR drops resistance dramatically when light strikes the cell
tracing hot-air flow between the twin flues
and lead threading onto string or rod for mass-dependent pendulum period comparisons
Gravesande Ring and Ball Apparatus Type_Apron 75 by 3 inch woodenCaptive 19mm brass ball on a rod mounted Gravesande ring, passing freely through the ring at room temperature but halted by the ring after flame heating expands the metal.
US$ 245.00
US$ 224.50
US$ 1495.00
US$ 18.99
US$ 1675.00