s the equator and the diameter the same thing?
no.
The diameter of Jupiter at its equator is approximately 142,984 kilometers.
No.
The Earth's diameter at the equator is approximately 7,917.5 miles.
Saturn's diameter at its equator is about 74,900 miles (120,540 kilometers).
The Earth is slightly wider than it is tall. Its diameter at the equator is about 12,742 kilometers, while its diameter from pole to pole is about 12,714 kilometers. This is due to the centrifugal force created by the Earth's rotation, causing it to bulge slightly at the equator.
The planets in our solar system vary widely in size and diameter at the equator. For example, Earth's diameter at the equator is about 12,742 kilometers (7,917 miles), while Jupiter's diameter at the equator is about 142,984 kilometers (88,846 miles). The smallest planet, Mercury, has a diameter at the equator of about 4,880 kilometers (3,032 miles).
the diameter divided by 2
What causes currents to move north from the q Equator
The diameter of Earth at its equator is 12,756 km and its circumference is about 40,075 km.
The equator is an imaginary line on the Earth's surface equidistant from the North Pole and South Pole that divides the Earth into a Northern Hemisphere and a Southern Hemisphere. http://en.wikipedia.org/wiki/Equator http://www.google.com/search?hl=en&q=Equator In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. Greek words dia = through and metro = measure. The diameters are the longest chords of the circle. In more modern usage, the length of a diameter is also called the diameter. In this sense one speaks of "the" diameter rather than "a" diameter, because all diameters of a circle have the same length, this being twice the radius. http://en.wikipedia.org/wiki/Diameter
No, the equator and the Tropic of Cancer are not the same thing. The equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres, while the Tropic of Cancer is the northernmost circle of latitude on the Earth at which the sun can be directly overhead. The Tropic of Cancer is located north of the equator.