Educational devices

Details Educational devices Educational devices

1981-07-20

1982-11-09

Skogquist, Harland S.

Education and demonstration

Science

Physics

G09B 2308

Patent

active

043582761

ABSTRACT:
A simple, durable, inexpensive educational device for demonstrating the physical properties of colliding, accelerating and vibrating objects, especially suitable for use by educational institutions at or below the college level is described. The device consists of a pressure sensitive medium affixed to a hard flat surface which may be made to vibrate while one or more balls are made to roll on the surface, resulting in visible imprints in the form of dotted or wavy lines. The distance between dots or the individual undulations of the wavy lines serve to mark the positions of the balls at equally spaced instants of time, and thereby allow a determination of the ball velocities and accelerations without requiring compressed air, spark timers, or stroboscopic photography.

REFERENCES:
patent: 874110 (1907-12-01), Packard
patent: 2498168 (1950-02-01), Lloyd
patent: 3688415 (1972-09-01), Stehl
patent: 3774317 (1973-11-01), Balamuth
patent: 3955291 (1976-05-01), Michaud

Affiliated with

Also associated with

Rating

Educational devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Educational devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Educational devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-744442