| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 1Q50.00 | Gyros | | |
| 1Q50.01 | elementary explaination | AJP 43(4),365 | Precession explained using only Newton's laws. |
| 1Q50.01 | behavior of a real top | AJP 47(4),346 | Analysis of the behavior of a real top with a round end spinning on a surface with friction. |
| 1Q50.01 | analysis | AJP 45(11),1107 | An elementary discussion of the gyroscope is presented. It is based on conservation of angular momentum and energy and does not require calculus. |
| 1Q50.01 | elementary analysis comment | AJP 29(8),550 | Comment on AJP 28(9),808. |
| 1Q50.01 | explaining top nutation | AJP 57(5),428 | The stability of torque-free rotations and top nutation without sophisticated mathematics. |
| 1Q50.01 | physical explaination | AJP 45(12),1194 | Consider the rotation of two equal masses mounted on a frame of negligible mass. Also note that the mathematical simplification made in the study of rigid-body motion often tend to obscure what is happening. |
| 1Q50.01 | elementary analysis | AJP 28(9),808 | One approach to explaining the gyroscope in language familiar to the student. |
| 1Q50.01 | physical explaination | TPT 20(1),34 | Precession explained qualitatively without recourse to right-hand rules, torques, etc. A train track displacement demo is presented as an analog. |
| 1Q50.01 | physical explaination | TPT 18(3),210 | A simple physical explanation of precession. |
| 1Q50.10 | precessing disc | PIRA 200 | Spin a cardboard disc on a pencil inserted in a hole at the center and touch a finger to the rim. |
| 1Q50.10 | precessing disc | 1Q50.10 | A phonograph record (or aluminum disc) is spun on a nail at the end of a wood dowel. Have the class predict which way the record will turn when touched with a finger. |
| 1Q50.10 | cardboard precession | AJP 28(5),504 | Spin a cardboard disc on a pencil inserted in a hole in the center and touch a finger to the rim. |
| 1Q50.10 | precessing disc | Mu-7 | A 6" aluminum disc on a long axial rod is hand spun to show precession due to gravitational torque. |
| 1Q50.10 | phonograph record | 13-5.14 | A wood bar spinning in a horizontal plane on a pivot is tapped and the plane of rotation tips. |
| 1Q50.10 | phonograph record | M-19h | Spin a cardboard disc on a nail driven into the center into the end of a stick. Place a finger on the disc to cause it to precess. |
| 1Q50.20 | bicycle wheel gyro | PIRA 200 | Spin a bicycle wheel mounted on a long axle with adjustable counterbalance. |
| 1Q50.20 | bicycle wheel gyro | 1Q50.20 | A small weighted bicycle wheel is mounted at the end of a long axle pivoted in the middle with an adjustable counterweight. |
| 1Q50.20 | bicycle wheel gyro | AJP 31(5),393 | The counterbalanced bicycle wheel gyro with clip-on vector arrows for the angular momentum and torque vectors. |
| 1Q50.20 | bicycle wheel gyro | TPT 21(5),332 | Spinning bike wheel mounted on an adjustable counterbalanced axle. |
| 1Q50.20 | bicycle wheel gyro | Mu-2 | A bicycle wheel is mounted on a long axle with adjustable counterbalance. |
| 1Q50.20 | bicycle gyro | 13-5.2 | Drawings for making a very nice gyro out of a 24" bike wheel. |
| 1Q50.20 | bicycle wheel gyro | 13-5.5 | Weigh one end of a bike wheel gyro axle while the gyro is hanging vertically, spinning while supported horizontally, and precessing about the scale. |
| 1Q50.20 | bicycle wheel gyro | M-19g | A bicycle wheel gyro with a slightly different setup. |
| 1Q50.20 | gyro with adjustable weights | Disc 07-11 | A small gyro is at the end of a pivoting rod with an adjustable counterweight. |
| 1Q50.21 | bike wheel on gimbals | PIRA 1000 | |
| 1Q50.21 | bicycle wheel gyro | M-187 | A spinning bike wheel with two handles is supported by a loop of string around one of the handles. Counterweights may be applied. |
| 1Q50.22 | suspended bike wheel | AJP 30(7),528 | A ball at one end of a bike wheel axle is placed into a socket on a bearing for demonstrating precession and nutation on a large scale. |
| 1Q50.22 | bike wheel turnaround | 13-5.1 | Posts from a rotating platform support both ends of the axle of a bike wheel. One post is hinged so the wheel can be supported from one end only as the platform rotates. |
| 1Q50.22 | suspended bike wheel | M-189 | A bicycle wheel with handles is supported by loops of string tied to a crossbar that is hung by a single string. Push the ends of the handles horizontally in opposite directions. |
| 1Q50.22 | bike wheels on gimbals | Disc 07-12 | A bicycle wheel on gimbals has a long axle that can be weighted. |
| 1Q50.23 | bike wheel presession | PIRA 1000 | |
| 1Q50.23 | path of a rim point | AJP 34(4),xvii | Photograph a flashing light attached to the rim of a spinning wheel during forced precession. |
| 1Q50.23 | bike wheel precession | Disc 07-10 | A spinning bicycle wheel is supported by a rope at one end of a long axle. |
| 1Q50.24 | walking the wheel | PIRA 1000 | |
| 1Q50.24 | walking the wheel | 1Q50.24 | A spinning bicycle on a short axle dangles from a string held in the hand. Try to apply a torque that will bring the axle to a horizontal position. |
| 1Q50.24 | walking the wheel | Mu-14 | A spinning bike wheel is mounted on one end of an axle and the other end has a loop of string. Try to get the bike wheel in the vertical position by applying a torque to the string. |
| 1Q50.25 | double bike wheel gyro | PIRA 500 | |
| 1Q50.25 | double bike wheel gyro | 1Q50.25 | Two bike wheel are mounted coaxially. Try the standard demos with the wheels rotating in the same direction and in opposite directions. |
| 1Q50.25 | double bike wheel gyro | AJP 41(1),131 | Do the standard single bike wheel demos with two coaxial bike wheels counter rotating. |
| 1Q50.25 | double bike wheel gyro | TPT 22(5),324 | Two bike wheels are mounted on the same axle. The standard demos are done with the wheels rotating in the same and opposite directions. |
| 1Q50.25 | double bike wheel | Disc 07-13 | The double bike wheel gyro precesses when both wheels rotate in the same direction. Has a nonstandard mount. |
| 1Q50.26 | inverted bike | AJP 46(11),1190 | Three demos involving bike wheel demos, one of which is a double wheel device. |
| 1Q50.30 | MITAC gyro | PIRA 1000 | |
| 1Q50.30 | MITAC gyro | 1Q50.30 | A commercial motorized gyro on gimbals. |
| 1Q50.30 | MITAC gyro | AJP 28(1),78 | Evaluation of the MITAC gyro. Paint the gimbals as suggested by AJP 14,116 (1946). |
| 1Q50.30 | MITAC gyro | Mu-10 | A commercially built motorized gyro on a gimbal includes counterweights. |
| 1Q50.30 | motorized gyroscope | Disc 07-14 | A motorized gyro in gimbals. |
| 1Q50.31 | ride a gyro | PIRA 1000 | |
| 1Q50.31 | ride a gyro | 1Q50.31 | Same as AJP 56(7),657. |
| 1Q50.31 | a large gyro | AJP 56(7),657 | Make a gyro out of an auto wheel and tire. This is big enough to sit on. |
| 1Q50.35 | gyro in gimbals | PIRA 1000 | |
| 1Q50.35 | gyro in gimbals | 1Q50.35 | Push a cart with a gyro around the room. |
| 1Q50.35 | gyro on turntable | M-170 | A gyro set in gimbals is carried around. |
| 1Q50.35 | gyroscopic stability | Disc 07-07 | Move a gyro mounted on gimbals. |
| 1Q50.40 | suitcase gyro | PIRA 1000 | |
| 1Q50.40 | suitcase gyro | 1Q50.40 | Spin up a flywheel hidden in a suitcase and have a student turn around with it. |
| 1Q50.40 | suitcase gyro | AJP 34(12),1201 | A battery powered motor runs a flywheel in a suitcase. |
| 1Q50.40 | suitcase gyro | Mu-4 | A large gyro is mounted in a suitcase. |
| 1Q50.41 | feel of a gyro | Mu-8 | Hold a heavy gyro outfitted with good handles. |
| 1Q50.42 | various gyros | M-19a | pictures of various gyros. |
| 1Q50.43 | magnetic gyro | M-19b.1 | Two magnetic gyros. |
| 1Q50.45 | air bearing gyro | PIRA 500 | |
| 1Q50.45 | air bearing gyro | 1Q50.45 | A large air support for a bowling ball. |
| 1Q50.45 | air bearing gyro | AJP 33(4),322 | Shop drawings and construction hints for making a air bearing for a 4" diameter ball. |
| 1Q50.45 | air bearing gyro | AJP 28(2),150 | Apparatus Drawings Project No.3: Air suspension gyro for a hardened steel ball bearing. Designed for use lab. |
| 1Q50.45 | air bearing gyros | AJP 32(9),xiii | A bowling ball air gyro spins for a half hour when spun by hand. The uneven weight distribution produces precession. Also shows a 4" steel ball bearing air gyro. |
| 1Q50.45 | air bearing gyro | TPT 11(6),361 | Directions for making an air bearing for a bowling ball. |
| 1Q50.45 | air bearing gyro | 11-2.2 | The air bearing gyro. Construction details in appendix, p. 587. |
| 1Q50.45 | air-bearing gyro | 13-5.3 | A large air bearing gyro has a long horizontal shaft with arrow heads for visual emphasis. |
| 1Q50.45 | air bearing gyro | 13-5.7 | Small mirrors on an air bearing gyro are used to demonstrate instantaneous axis of rotation, angular momentum vector, etc. |
| 1Q50.50 | precession with quality gyro | M-188 | A high quality gyroscope with a counterweight is used to show the fundamental precession equation with fair precesion. |
| 1Q50.51 | precession | 13-5.12 | A model shows precessing axes. |
| 1Q50.52 | instantaneous axis | Mu-6 | A bicycle wheel is pivoted at the center of mass and has a disc mounted above the wheel in a parallel plane. The instantaneous axis can be seen as the point of no motion on the upper disc. |
| 1Q50.53 | precession of the equinoxes | 13-5.11 | A rubber band provides a torque to a gyro framework hanging from a string causing precession. |
| 1Q50.54 | precessing earth model | AJP 44(7),702 | A fairly complex gyroscope. |
| 1Q50.56 | precessing ball | 13-5.15 | A ball placed on a rotating table precesses about the vertical axis with a period 7/2 of the table. |
| 1Q50.57 | Kollergang | 13-5.8 | A device induces precession and change of weight is noted. |
| 1Q50.58 | nutations | 13-5.13 | A vertical gimbal mounted shaft has a gyro on the bottom end and a light bulb and lens on the top. Nutations of the gyro are shown by the moving spot of light on the ceiling. |
| 1Q50.59 | motorcycle as a gyro | AJP 42(8),701 | The handlebars are twisted (but not moved) in the direction opposite to the turn to lay the machine over. |
| 1Q50.59 | tip a bike wheel | Mu-9 | A bike wheel on a front fork is hand spun and tipped to one side. |
| 1Q50.60 | gyrocompass | PIRA 1000 | |
| 1Q50.60 | gyro on turntable | Mu-5 | A gyro in a gimbal sits on a rotating table. Remove the degree of freedom about the vertical axis and the gyro will flip as the table is reversed. |
| 1Q50.60 | 2 degrees of freedom | 13-5.6 | Spin flip on turning a restricted gyroscope. |
| 1Q50.60 | gyrocompass | M-192 | A gyroscope in gimbals is deprived of one degree of freedom. A slight change of direction will cause a spin flip. |
| 1Q50.61 | gyrocompass | 13-6.2 | Shows the origin of the error of an uncorrected gyrocompass. |
| 1Q50.62 | airplane turn indicator | M-193 | Diagram. Model of an airplane turn indicator in which the gyro precesses about the axis of the fuselage. |
| 1Q50.63 | gyrocompass | 13-6.1 | A model of a gyrocompass for any latitude on the spinning earth. |
| 1Q50.70 | stable gyros | PIRA 1000 | |
| 1Q50.70 | stable gyros | Mu-11 | A gyro on a ladder will become stable when spinning. |
| 1Q50.71 | stable gyro car | Mu-16 | A spinning gyro mounted on a two wheel cart rides a stretched wire. |
| 1Q50.71 | stable gyro | M-198 | A very clever gyro "rider" on a model bike. |
| 1Q50.71 | stable gyro monorail car | M-200 | A monorail car stabilized by a gyro. |
| 1Q50.72 | ship stabilizer | PIRA 1000 | |
| 1Q50.72 | ship stabilizer | M-194 | Model of a ship stabilizer. |
| 1Q50.72 | ship stabilizer | M-196 | A large boat model you can sit in with a motor driven gyroscope. |
| 1Q50.72 | ship stabilizer | Disc 07-18 | A motorized gyro is free to turn on a vertical axis when the ship model is rocked. |
| 1Q50.73 | gyro on stilts | M-199 | A top-heavy gyro on stilts teeters about its position of unstable equilibrium. |
| 1Q50.74 | trapeze gyros | Mu-15 | A gyro on a trapeze is stable only when spinning. |
| 1Q50.74 | trapeze gyros | 13-5.4 | Gyro on a trapeze shows stability when there are two degrees of freedom. |
| 1Q50.74 | trapeze gyros | M-197 | Gyro on a trapeze. |
| 1Q50.75 | ganged gyros | 13-5.10 | Ganged gyros are spun in the same or opposite directions. |
| 1Q50.76 | gyro damped pendulum | M-195 | Picture. Frictional torque can be applied to the precession axis to damp the motion of the pendulum. |
| 1Q50.80 | gyro pendulum | M-201 | A gyroscope is hung from one end of its spin axle by a string and is swung as a pendulum. |
| 1Q50.90 | Maxwell's gyro | Mu-13 | The extended shaft of a gyro supported at its center of mass will trace out complex contours. |
| 1Q50.90 | Maxwell's gyro | M-191 | The spindle of a heavy spinning wheel pivoted at its center of gravity will follow an irregularly shaped object. |
| 1Q50.90 | walking gyro | M-190 | An apparatus for walking a gyroscope along a cradle. |
| 1Q50.95 | air bearing Maxwell's top | AJP 30(7),503 | Plans for an air bearing Maxwell's top resting on a 2" dia ball with matching air bearing cup with tangential air jets to provide torque. |
| 1Q50.99 | gyroscope accelerator | AJP 30(7),528 | A six inch wheel from a child's wagon in a 1/4" drill is used to spin up a gyroscope. |