US$ 10.00
Focuses sunlight through a 30cm parabolic reflector onto a black copper target cup
this acrylic 12
Five-pack of 3/4-inch plastic marbles
Built for biology dissection work
10-100Ω Single Dial Resistance Box Item Type_Dissection Equipment Focuses sunlight through a 30cmMid low range resistance box stepping from 10 ohms to 100 ohms in 10 ohm increments on a single rotary dial, the workhorse decade for introductory Wheatstone bridge and Ohm's law work.
US$ 10.00
US$ 18.98
US$ 17.98
US$ 18.98
US$ 18.98
US$ 18.98
US$ 20.00
US$ 15.98