If a tiny marble has a radius of 0.25mm how many marbles can be lined up across the circumference of the earth, distance of 24900 miles?

Answer : The number of marbles lined up across the circumference of the earth can be, marbles

Explanation :

First we have to calculate the diameter of tiny marble.

r = radius of marble = 0.25 mm

Now we have to calculate the number of marbles can be lined up across the circumference of the earth.

Given:

Circumference of the earth distance =

conversion used:

Number of marbles can be lined up = marbles

Thus, the number of marbles lined up across the circumference of the earth can be, marbles

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.