Frey Scientific Economy Free Fall Tube, 32-2/5 x 1-3/4 Inches

Item #: 564673

Drop the feather and coin, and see the astounding results with this handy economy free fall tube.

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Frey Scientific Economy Free Fall Tube demonstrates how objects fall at the same rate in a vacuum, despite differences in mass. Tube measuring 90 centimeters (or approximately 35-2/5 inches) in length and 4-1/2 centimeters (or approximately 1-1/3 inch) in diameter is made of tough, clear plastic with rubber end caps and hose cock for connection to any standard vacuum pump (not included). An included disc coin and feather provide the perfect "drop" objects to see this theory in action. Activity guide included.
  • Economy free fall tube is a fun, fascinating aid for science glass and the teaching of gravity and physics
  • Tube demonstrates how objects such as coins, paper scraps, and more fall at the same rate in a vacuum despite differences in mass
  • One of the durable plastic end caps has a serrated stem and stopcock valve for exhausting air
  • Fall tube comes ready to use with Lucite tube, end caps, and activity guide with instructions (just add a vacuum pump; sold separately)
Includes:
  • Free Fall Tube (with Rubber Cap Ends)
  • Activity Guide