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.
How do we know how far away the moon is? The exact distance between the Moon and Earth varies since the Moon follows an elliptical (oval) orbit, but on average the Moon is 384,399 km away. If you had a piece of string that long, you could wrap it all the way around the Earthâs equator almost ten times.