What do you want to measure about the marble? Its diameter, radius, circumference, volume, mass, density...?
I would use a micrometer. A caliper would do as well.
little round things usually made of glass about 7/16 inch in diameter used in games
Calipers would be accurate, a micrometer would probably be most accurate. there's a few options, depends on your purpose.
That depends a lot what you want to measure: its diameter, surface area, volume, mass, density, color, hardness, etc.
6.5cm
What do you want to measure about the marble? Its diameter, radius, circumference, volume, mass, density...?
millimetres or mm
milimetersMilliliter
That depends what you want to measure: its diameter, its mass, its weight, its color, etc.
That depends what aspect of a marble you want to measure, for example its diameter, its mass, its density, its color, etc.
yes. the one-inch diameter marble could go faster than the other because it is heavier.
I would use a micrometer. A caliper would do as well.
To find the volume of a steel marble, you can use the formula for the volume of a sphere, which is V = (4/3)πr^3, where r is the radius of the marble. Measure the diameter of the marble using a caliper, then divide it by 2 to get the radius. Plug the radius into the formula and calculate the volume using the value of π. This will give you the volume of the steel marble in cubic units.
If you have calibrated eyeballs
little round things usually made of glass about 7/16 inch in diameter used in games
The most expensive marble ever sold was the Black Galaxy marble in 1988 at US $546000. It was bought by an anonymous bidder in Australia. Dated to approximately 1880 It is actually made from a marble inlaid with coloured paint and measures 42mm in diameter. It has damage to one side from a pick blade which struck it when it was found in 2009 in a property in Australia