The biting force of an animal depends upon the magnitude, direction and point of application of forces exerted by the jaw muscles. A mammalian jaw exerts a greater force than does a reptilian jaw...
Vector representation of position, velocity, and acceleration.
What it shows:
A circular train track1 is mounted on a board. X-Y axes are painted on the board with the origin at the center of the circle. Vector Arrows (Newtonian Mechanics, Vectors and...
Various length and color, wooden arrow vectors can be hand-held, placed (magnetically) on the blackboard, or stuck into a wooden block to define a coordinate system. Small vector blocks can be...
Aluminum/Uranium and SF6/Air/Helium density comparisons.
What It Shows
The concept of mass per unit volume, aka density, is shown by having several different substances on hand for comparison. In solid materials, we have equal size chunks1 of aluminum (2...
Bowling ball pendulum with burning candles stuck in holes, used as prop only.
What It Shows
Rumor has it that one day at the cathedral, Galileo watched the swinging of a chandelier after it had been displaced and lit. By using his own pulse as a timer, he...
There are several services to help the scientist keep time. Some of these can be brought into the lecture hall. Students can listen to the time signals from WWVB (60 kHz signal from Colorado) on a...
[M | t | ★] Standard meter sticks and selection of cubic volumes.
What It Shows
No temperature-controlled platinum rods here – just some sticks that are very close to a meter in length. Standard meter sticks as well as cubic centimeters and decimeters are...
