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EM1463-01
Oersted's Apparatus, 75mm Needle with Stand
Oersted’s Law Apparatus. Examine Magnetic Effect of Electric current flowing in a wire. 15 cm long permanent magnetic needle rotates freely inside an Aluminium frame. Current can flow over or under the needle in either direction. With a sturdy base, needle mounted on sensitive agate bearing and binding posts.
HS234524
Parafilm Dispenser, clear acrylic
Store, dispense, and cut Parafilm® M tape
Strong, crystal-clear acrylic dispenser makes your film supply visible
Serrated cutting blade cuts without deforming sheets
Lid opens for quick loading of rolls
Rubber feet secures in place while cutting
Dispenser holds one or two 2 in (50 mm) rolls or one 4 in (100 mm) roll
Dimensions: 4.7 x 6.6 x 6.9 in (11.9 x 16.8 x 17.5 cm)
SUP5838901
Parafilm Dispenser, for Parafilm M
For dust-free storing and convenient cutting of sealing film Parafilm® M.
-ABS Natural
-with hinged lid
-with holding device for taking one roll Parafilm® M of 10 cm width or two rolls of each 5 cm width
-efficient cutting wheel is supported by a firm knife guide
