Tuesday, 06 May 2014 12:19

## B1-07: DOUBLE CONE - SMALL

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• ID Code: B1-07
• Purpose: Demonstrate a center of mass paradox
• Description: When a double cone is placed on the narrow end of a V-shaped rail, the cone will roll towards the wider end of the rail when released. The cone appears to be rolling uphill (from the narrow end to the wider end), but in reality the center of mass is moving down. Upon special request, we can also provide a cylindrical rod of the same length as the double cone to roll along the rails to show their actual slope. Challenge students to predict whether the cylindrical rod travel in the same direction as the double cone.

Note: B1-06 is a larger version of this demonstration, suited to large classrooms.

• Availability: Available
• Loc codes: B1
• #### B1-01 CENTER OF MASS - DISC SECTION

Demonstrate finding center of mass for an irregularly-shapped object Read More
• #### B1-02: CENTER OF MASS - LEANING TOWER

Demonstrate the effect of center of mass location Read More
• #### B1-03: CENTER OF MASS - LEANING TOWER ON INCLINED PLANE

Demonstrate equilibrium when its center of mass is above its base Read More
• #### B1-04: Center of Mass - Brass Barbell

Demonstrate stable equilibrium when supported at center-of-mass Read More
• #### B1-05: CENTER OF MASS - PLUMBER'S HELPER

Locate the center of mass of an irregular object Read More

• #### B1-08: STATES OF EQUILIBRIUM - CONE

Illustrate stable, unstable, and neutral equilibrium Read More
• #### B1-09: CENTER OF MASS - TRIANGLE

Demonstrate the process of locating the center of mass Read More

• #### B1-12: CENTER OF MASS - HINGED STICK PARADOX

Illustrate the center of mass in a surprising way Read More
• #### B1-13: CENTER OF MASS - FORK AND SPOON ON TOOTHPICK

Illustrate the center of mass in a surprising way Read More
• #### B1-14: CENTER OF MASS - BOTTLE

Illustrate the center of mass in a surprising way Read More
• #### B1-15: TOPPLING CYLINDERS

Illustrate stable and unstable equilibrium in a surprising way Read More
• #### B1-16: CORBELED ARCH

Illustrate how the center of mass affects the stability of an arch Read More
• #### B1-17: CENTER OF MASS - STICKS

Illustrate the center of mass in a surprising way Read More
• #### B1-18: Center of Mass - Soda Can and Water

Show how moving the center of mass of an object changes how it balances. Read More
• #### B1-21: BALANCE BEAM - VARIATION ON THE TIGHTROPE WALKER

Show how arms or a pole are used to obtain greater stability Read More
• #### B1-22: CENTER OF GRAVITY USING TEETER TOTTER

Determine the center of gravity of the human body Read More
• #### B1-24: CENTER OF MASS - CARTS ON BALANCE BOARD

Show that the center of mass may remain at rest during motion within the system Read More
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