#18 Cable on the moon
It is the year 2100, and the Moon Colonisation Programme is well-advanced.
A power cable is being laid all the way around the moon’s equator. The original plan was to put the cable on the moon’s surface, but it has been suggested that instead it should be buried in a trench that is 1-metre deep. This will make it safer and will also save on the amount of cable needed.
How much shorter will the cable be if it is buried in this way?
Answer next week
#17 Which flipping year?
Solution
The date with…
