You cannot blanket a large sphere wit smaller spheres because spheres cannot tessellate. There are always gaps between adjacent spheres and so no blanketing is possible.
Only circles (or spheres) have a diameter
In basic terms...no. A diameter only applies to circles or spheres. The diameter is the distance across the middle at the widest point and the radius is half of the diameter.
Kind of. All spheres and circles have a diameter, which is the length of a line passing through the center of the sphere. The only problem is that most planets aren't 100% perfect spheres, so the diameter could be different depending on where you start measuring from.
Yes
A diameter is a cord in a circle containing the center of the circle. But some circles are sections of spheres. Not all diameters are diameters of spheres.
If you have an 18 inch diameter sphere on top, you'll have a 36 inch diameter sphere in the middle and a 54 inch diameter sphere on the bottom. 18 x 2 = 36 and 18 x 3 = 54
The Sun, Earth and the Moon are all oblate spheroids. Meaning their equatorial diameter is greater than their polar diameter.
Each sphere has a volume of about 0.0003 cubic yards and 6/0.0003 = 20,000 spheres
Spheres only have one diameter. Planets are a little different than spheres in that they tend to bulge at the equator, so the size of their diameter depends on where you measure it. Planets are usually measured along the equator, but you could measure them in an infinite number of places.
For example, the Sun is roughly 109 times the diameter of Earth; and about 10 times the diameter of Jupiter. The volume (for the simplifying assumption of perfect spheres) is proportional to the third power of the diameter.
For example, the Sun is roughly 109 times the diameter of Earth; and about 10 times the diameter of Jupiter. The volume (for the simplifying assumption of perfect spheres) is proportional to the third power of the diameter.
The volume of a sphere is 4/3 x pi x r3. The radius of those spheres is 0.25 inches. This means the volume of the spheres is 0.0491 cubiic inches. Dividing 353.43 by 0.0491 gives us 7198.17. Assuming we're going by whole spheres, it would take 7198 spheres to occupy this space.