Anti Gravity Cone

Anti Gravity cone illustrates how a double cone appears to roll uphill due to its centre of mass moving downward along V-shaped rails.
The set includes a wooden cone of a diameter of 3 inches and a V-shaped wooden stand with dimensions of 18 inches.
The “Cone Runs Uphill” apparatus demonstrates the concept of the centre of mass. The conical shape of the double cone causes it to sink toward the wider end of the V-shaped rails, creating the illusion that it rolls uphill, even though its centre of mass is moving downward.
Also known as Double Cone Model.

$ 0.01

Component/Feature	Specification
Size/Scale Diameter	6 inches (150 mm) or 7 inches (175 mm/178 mm)
Vernier Reading	1 minute of arc (30 seconds also common)
Main Scale	0-360° with divisions of (0.5 circ ) (150 mm or 175 mm circle)
Vernier Scale	Double ended vernier separated by (180 circ )
Collimator Lens	Achromatic, 178 mm focus, 32 mm clear aperture
Telescope Lens	Achromatic, 178 mm focus, 32 mm clear aperture
Eyepiece	Ramsden Type ((10 times ) or (15 times ) with cross-line graticule
Slit	Unilaterally adjustable, 6mm long
Fine Adjustment	Provided for both telescope and collimator (laterally and vertically)
Prism Table	Marked with lines; leveling screws & interchangeable clamp
Main Structure	Heavy cast metal with bright plated fittings (sometimes stainless steel scale)
Accessories	Prism holder, Grating holder, Watchmaker’s eyeglass, L-key, Hardwood case

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