DCS # |
Demonstration |
Abstract/Description |
1E10.10 |
crossing the river |
Pull a sheet of wrapping paper along the lecture bench while a toy
wind up tractor crosses the paper. |
1E10.10 |
crossing the river |
A long sheet of paper (river) is pulled along the table by winding
on a motorized shaft. A motorized boat is set to cross the river. Marking
pens trace the paths. |
1E10.10 |
crossing the river |
A wind up toy is placed on a sheet of cardboard that is pulled along
the table. |
1E10.10 |
crossing the river |
A small mechanical toy moves across a rug which is pulled down the
lecture table. |
1E10.10 |
bull dozer on moving sheet (2D) |
The bulldozer moves across a sheet moving at half the speed of the
bulldozer or at the same speed. |
1E10.11 |
toy tractor drive |
On using toy tractors in kinematics demonstrations. |
1E10.15 |
moving blackboard |
Using a large movable reference frame on wheels and a walking student,
equations of relative speed can be deduced by non science majors. |
1E10.20 |
Frames of Reference film |
The classic film available on video disc permits use of selective parts. |
1E10.22 |
photographing relative velocity |
Toy bulldozers, blinkies, and a camera give a photographic record of
relative velocities. |
1E10.23 |
Galilean relativity |
A Polaroid camera and blinky, each on a cart pushed by a toy caterpillar,
show the various cases of relative motion. |
1E10.31 |
stick on the caterpiller |
A small stick placed on the top tread of a toy caterpillar moves twice
as fast as the toy. |
1E10.41 |
inertial reference frames |
Two X-Y axes, one on a moving cart, and "cord" vectors are painted
with fluorescent paint and viewed in black light. |
1E10.41 |
inertial reference frames |
Complicated. Look it up. |
DCS # |
Demonstration |
Abstract/Description |
1E20.10 |
Foucault pendulum |
A ceiling mounted pendulum swings freely. The change in path is noted
at the end of the class period. |
1E20.10 |
Foucault pendulum |
Suspension for a large (120# - 36') non driven Foucault pendulum. |
1E20.10 |
Foucault pendulum |
A large pendulum hung from the ceiling swings for an hour. |
1E20.10 |
Foucault pendulum |
Optical arrangement for projecting the Foucault pendulum motion. |
1E20.10 |
Foucault pendulum |
Permanent corridor demonstration as described in Scientific American,
vol 210, Feb. 64, 132-9. |
1E20.10 |
Foucault pendulum |
Look at the plane of swing at six ten minute intervals. |
1E20.11 |
short Foucault pendulum |
Pictures and a circuit diagram for a well done short Foucault pendulum. |
1E20.11 |
short Foucault pendulum |
A 70 cm pendulum with a method of nullifying the precession due to
ellipicity. |
1E20.11 |
Foucault pendulum |
A Foucault pendulum driver for limited space exhibits. |
1E20.11 |
short, continuous Foucault pendulum |
Modification of the AJP 46,384 (1978) pendulum to make it portable
so it can be moved into lecture rooms for demonstration. |
1E20.11 |
Foucault pendulum |
Plans for a very short (50 cm) Foucault pendulum. |
1E20.11 |
Foucault pendulum |
Several novel features that can be incorporated in the design of a
short Foucault pendulum to make construction and operation relatively simple. |
1E20.12 |
time lapse Foucault cycle |
The author will provide a videotape of a complete time lapsed cycle
of the Foucault pendulum filmed at the Center of Science and Industry in
Columbus for preview and copying. |
1E20.13 |
Foucault pendulum |
A 2 meter Foucault pendulum with a Charron ring drive. |
1E20.14 |
Foucault pendulum |
The support wire for a 2.8 meter Foucault pendulum is lengthened by
heating at the end of each swing. |
1E20.14 |
Foucault pendulum |
Foucault pendulum drive mechanisms. |
1E20.15 |
Foucault pendulum drive |
An electromagnet is placed below the equilibrium position of the bob.
Circuit for the drive is given. |
1E20.16 |
Foucault pendulum |
An optical projection system to show the deflection of a Foucault pendulum
after 100 oscillations. |
1E20.16 |
Foucault pendulum |
General text about the Foucault pendulum. |
1E20.19 |
Foucault pendulum - Onnes experiment |
A review of Onnes' analysis that led to the first properly functioning
Foucault pendulum. More stuff. |
1E20.19 |
general and historical article |
Some discussion of a current murder novel, some history of Foucault's
work, etc. |
1E20.20 |
Foucault pendulum model |
A pendulum is mounted on a rotating turntable. |
1E20.20 |
Foucault pendulum model, etc |
Build a simple model of the Foucault pendulum and demonstrate the Coriolis
effect by the curved trace method. |
1E20.20 |
Foucault pendulum model |
A simple pendulum supported above the center of a turntable. |
1E20.20 |
Foucault pendulum model |
A simple pendulum hanging from a rotating platform. |
1E20.20 |
Foucault pendulum model |
Picture of a nice Foucault pendulum model. |
1E20.21 |
rotating frame |
A monkey puppet sits on a rotating reference frame to help the student
visualize a non-inertial frame. |
1E20.22 |
Foucault pendulum model |
Sit on a rotating chair with a table on your lab. A pendulum releasing
ink marks a clear pattern on the paper. |
1E20.26 |
geometric model |
A geometrical model helps correct some common misconceptions about
the plane of oscillation of the Foucault pendulum. |
1E20.27 |
Foucault pendulum |
Excellent diagram explaining the variation of rotation of the Foucault
pendulum with latitude |
1E20.28 |
Foucault pendulum precession |
Derivation of the Foucault pendulum period shows that no correction
factor is needed for (1 m) lengths. Contradicts C.L.Strong, Sci.Am. 210,136
(1964). |
1E20.30 |
Foucault pendulum latitude model |
A vibrating elastic steel wire pendulum demonstrates how the rotation
of the plane of oscillation depends on the latitude. |
1E20.35 |
Foucault pendulum latitude model |
A ball on rod pendulum set at 45 degrees latitude can be driven by
a solenoid inside the globe. |
1E20.35 |
Foucault pendulum model |
An electromagnet inside a globe drives a small pendulum at a selected
latitude. Construction details p.592. |
1E20.40 |
Theory and two demostrations |
The concept of a locally inertial frame is used to study motion in
accelerated frames. Two demonstrations are presented. |
1E20.50 |
rotating room |
Design for a rotating room that seats four at a table, and has four
possible speeds. |
1E20.50 |
motion room |
A rotating motion room that holds four students. |
1E20.50 |
catch on a rotating platform |
Students try to play catch on a large rotating system. Other possibilities
for the apparatus are discussed. |
1E20.51 |
rotating coordinate frame visualizer |
Experiments performed on a rotating frame are projected onto a screen
through a rotating dove prism. Centrifugal force, coriolis force, angular
acceleration, cyclones and anticyclones, Foucault pendulum, etc. |
DCS # |
Demonstration |
Abstract/Description |
1E30.10 |
draw the coriolis curve - vertical |
Mount a rotating disk vertically, drive a pen on a cart at constant
velocity in front of the disk. The speeds of the disk and cart are variable. |
1E30.11 |
draw the coriolis curve |
Place a poster board circle on a turntable move a magic marker across
in a straight line. |
1E30.11 |
draw the curve |
Move a magic marker in a straight line across a rotating disc. |
1E30.11 |
draw the curve |
A cart on a track with a marker passes in front of and draws on a large
disc that can be rotated. |
1E30.12 |
coriolis ink drop letter |
AJP 50(4),381 should have referenced AJP 27(6),429. |
1E30.12 |
coriolis |
Turn a nearly vertical sheet as a drop of ink is running down it. |
1E30.13 |
coriolis machine |
A clear plastic disk is placed over a inertial reference frame marked
with a constant velocity path. Draw marks on the plastic disk while turning
through equal angles. |
1E30.14 |
coriolis spark trace |
The PSSC air puck is used to give a spark trace on a rotating table. |
1E30.20 |
coriolis gun |
A spring loaded gun at the center of a 4' disc is shot at a target
first at rest and then while spinning. |
1E30.20 |
coriolis gun |
A clamped dart gun is fired by an instructor sitting on a revolving
chair into a target board. |
1E30.20 |
coriolis gun |
A spring gun at the center of a rotating table fires into a target
at the edge. |
1E30.21 |
coriolis |
Go to a merry-go-round and walk on it. You will feel a very strange
"force". |
1E30.24 |
spinning Coriolis globe |
A ball on a string is threaded through the pole of a spinning globe.
Pull on the string and the ball moves to higher latitudes and crosses the
latitude lines. |
1E30.26 |
coriolis dish and TV |
A ball oscillates in a spherical dish at rest, and follows various
curved paths when the dish is rotated at different speeds. A TV camera
is mounted to the rotating frame. More. |
1E30.27 |
coriolis rotating platform and tv |
A puck is launched on a rotating platform and the motion is followed
with a TV |
1E30.28 |
Coriolis effect |
Roll a ball across a slowly rotating turntable. |
1E30.30 |
leaky bucket on turntable |
A can with a hole is mounted above a rotating table. As the table turns,
the stream of water is deflected. |
1E30.32 |
drop ball on turntable |
A mass falls on a disc first while it is rotating and then when it
is stationary. Difference in point of impact is noted. |
1E30.33 |
coriolis trajectory |
A ball describing an arc is released first in a stationary coordination
system and then in a rotating system. |
1E30.34 |
coriolis water table |
A flat board rotates in a horizontal plane with a flexible tube full
of flowing water running lengthwise. The tube deflects upon rotation. |
1E30.34 |
coriolis water table |
A flexible rubber tube with water flowing in it is stretched across
a disc which can be rotated. The tube deflects when rotated. |
1E30.34 |
coriolis water table |
A flexible rubber tube with water flowing in it is stretched across
a disc which can be rotated. The tube deflects. |
1E30.35 |
rotating water flow table |
Food coloring used to mark flow is introduced at the edges of a circular
rotating tank with a center drain hole. A rotating overhead TV camera allows
motion in the rotating frame to be viewed. |
1E30.36 |
coriolis |
A pan of water on a turntable has a recirculating pump with an inlet
and exit of opposite sides of the pan. Floats above these areas rotate
in opposite directions as the pan of water is spun. |
1E30.50 |
rotating TV camera |
|
1E30.51 |
rotating TV camera |
A TV camera is rotated in front of an oscilloscope displaying a slow
ellipse. Vary the camera rotation. |
1E30.61 |
vacuum cleaner |
Cover the exhaust of an old vacuum: the current decreases as the RPM
increases. Demonstrates transformation of vectors from a moving coordinate
system to a rest frame. In one frame the torque does no work, in the other
with open exhaust torque is responsible for the entire power. |
1E30.71 |
spinning dancer - coriolis analysis |
The spinning dancer, usually treated as an angular momentum problem,
is used as a coriolis example. |