Print This Page
Customers most agreed on the following attributes:
from Lansing, MI on 5/26/2010
Comments about Arbor Scientific Rotational Inertia Demonstrator:
This is a very simple and elegant apparatus. It is easy to assemble and easy to set up. It does a great job of demonstrating to students what happens as masses are moved towards the center or towards the outside of a rotating machine.
The one drawback is that there are only four masses supplied with the apparatus. It would be nice to have additional masses to demonstrate the effect changing mass has on rotational inertia and motion.
The other drawback is that there is no easy way to accurately measure the rotation of the device (i.e. position, velocity, and acceleration). The simplest way is probably to use either a stopwatch and meter stick or a motion sensor to chart the position and movement of the falling weight.
from PA on 10/5/2009
Comments about Arbor Scientific Rotational Inertia Demonstrator:
Used in a torque lab or moment of inertia lab this piece of equipment is an easy to setup, very low friction apparatus. I ordered 3 more this year. Easily best new piece of equipment I've purchased in a while.
from Clinton, LA on 1/18/2009
Comments about Arbor Scientific Rotational Inertia Demonstrator:
The Rotational Inertia Demonstrator will help my students understand moments of Inertia and gain hands on experience with rotational mechanics.
from Rochester Hills, MI on 10/15/2008
Comments about Arbor Scientific Rotational Inertia Demonstrator:
Verify relationships to calculate rotational inertia.
Predict acceleration of the system.
I bought one last year and purchased a second so that I can have more lab groups working with this equipment.
from Lyman, WY on 6/3/2008
Comments about Arbor Scientific Rotational Inertia Demonstrator:
Excellent demonstration. Easy to use and clearly demonstrates how the position of mass affects rotational inertia.
from Philly, PA on 4/16/2008
Comments about Arbor Scientific Rotational Inertia Demonstrator:
It gives excellent results on conservation of energy lab with rotational motion and really allows student to see how changing the position of the mass affects rotational inertia.
from S.B. CA on 1/30/2008
Comments about Arbor Scientific Rotational Inertia Demonstrator:
The perfect apparatus for many rotational demonstrations / lab activities...
from Lyman, WY on 1/14/2008
Comments about Arbor Scientific Rotational Inertia Demonstrator:
Excellent device for demonstrating angular momentum and how mass distribution affects angular momentum. The product does need to be machined more accurately and carefully. I needed to retap and die the threads on the four rods and weights. The bore hole through the weighs needed cleaning out. The axle that the wheel turns on needs to be machined more accurately so the wheel turns smoothly and does not wobble.
from Youngstown State University on 12/17/2007
Comments about Arbor Scientific Rotational Inertia Demonstrator:
Out of the box and into the classroom in ten minutes - students found the interest immediately.
Now I see why Carhart and Chute (1906) lab manual
had this as an experiment.