What have you done today with your Austin Seven

[Tony Griffiths]

If the world's nearly 8 billion people were each given a coffin 1m x 1/2m x 1/2m, four people would fit inside 1 cubic metre. A 1 km cube is 1 billion cubic metres, so 8 billion cubic metres would be needed to bury everyone - and that's a pit just 2km x 2km x 2km. We really are very tiny.
Q2. Assume that the world's population of flies is estimated at a billion trillion and that each fly occupies a volume of 0.01 cubic mm, calculate the ......