Hereâs how long the iOS 8.1 upgrade takes. You should make sure you start the iOS 8.1 download on a good internet connection, when you have time to wait for the download to complete. You need WiFi to start this and you need at least 50% battery life.
On average the moon is 380,000 km (235,000 miles) from the Earth, a distance of about 110 times its own diameter. A tennis ball would then have to be 110 x 6.7 cm = 7.37 meters (about 24 feet) from the basketball.
The average distance from the Earth to the Moon is 238,857 miles, about thirty times the diameter of the Earth. Earth's diameter is about 8,000 miles. Earth's circumference is about 25,000 miles. Earth's distance from the moon is 1 second (in light years).