Lecture Demonstrations Laboratory

Demo Request History

Getting info for CourseID: 577

PHYS 109: Galileo and Einstein

• Protractor and ball of string

•  video  - Marble and Feather
• Falling Drops of Milk
  (If I understand this correctly, it is now falling white balls. Anyway, that's the one I want, with a strobe light to show them spaced further apart. )
•  video  - Shoot and Drop
• Simple Machines
  (Lever, inclined plane, block & tackle, screw --we'll leave the others for another lecture. I feel dumb because I left out the lever last night! )

• I need the "conic section" cone. (You can't fool me-- I know it's there!) Thanks.

•  video  - Marble and Feather
•  video  - Crush the Soda Can
•  video  - Archimedes' Principle I

•  video  - Archimedes' Principle I

•  video  - Ray Optics Kit
  (I am interested in the mirrors--flat, parabolic, and also the elliptical one I made last year (unless you have been able to get a REAL elliptical mirror). It is made of cardboard and lined with aluminized mylar. )

• I would like the Galileo rolling ball experiment (down a grooved plank) using water flow into a cup to meas- ure the time. I would also like several pendulums of the same length but with bobs of different masses, as well as a pendulum whose length can be changed fairly easily. A big stop watch that the whole class can see would also be useful.

•  photos  - Knot in Static Equilibrium

•  video  - Conservative System
•  video  - Pendulum with Moveable Peg

• I need a large styrofoam cup with small holes burned in the sides parallel to the bottom and just above the bottom, to demonstrate lack of gravity in free fall. I also need a large basket to catch it, in and a ladder to stand on to drop it.

•  video  - Uniform Linear Acceleration - Time
• Weighing

• 1: I didn't get to do the styrofoam cup drop, so I need it again. 2: I'd like to have a 2x4 with several identical nails in it, spaced about 5", all started to the same depth into the wood, but with most of their length showing. Then I want a lead weight--perhaps 5 lb--that I can drop from different heights, on different nails, so I can measure how far each nail is driven by the same weight falling a greater distance. This is a reconstruction of a Galileo experiment. 3: Finally, I would also like the set of steel balls that illustrate dimensional scaling--that is, weighing the 2" vs. 8 1" balls.

• Projectile Motion II
•  video  - Range Gun

•  video  - Ballistics Cart
•  video  - The Monkey and the Hunter
•  video  - Range Gun

• I was told you can put together a simple model of a Galilean telescope with a weak convergent lens and a strong divergent one, using a meter stick as an optical bench. I would greatly appreciate this, if possible

•  video  - Spinning Tray
• Centripetal Force
• Spinning Chain
• Centripetal Acceleration

• Cavendish Balance Model

• Also rocket cart, please --student on cart, fire-extinguisher as rocket engine...

• Air Track Reaction Cars
•  video  - Newton's Sailboat
• Distortion Loops

• Do you have any tops and string to spin them with? I seem to recall you did at one time. I'd love to show them too.

•  video  - Rolling Objects and Moments of Inertia
•  video  - Moment of Inertia Wheel
•  video  - Vector Nature of Angular Momentum
•  video  - Precession of Bicycle Wheel Under Gravity Force
• Gyrocompass

•  video  - Interference and Diffraction
• Frames of Reference
• Measurement of the Speed of Light

• I just need something that goes "bang", such as the big capacitor that gets charged up and discharged with a screwdriver. Also something that flashes like a 1-time strobe or camera flashgun.

• Frames of Reference
  (Please set the tape to about 13 minutes from the beginning--that is, the beginning of accelerated frames. Also I didn't get to show Brownian motion on Tuesday, so if we could have it again... Thanks. PS: I don't see either the black globe or the depressed membrane curved-space gravity demo listed in the manual. I would like them both. )