Jonah was flying around the gulf of Aqaba on Google Earth and discovered that it is 7,093,417.85 inches in length :)
Reading the Tank book to the boys; we talked at length about the effect of gravity because the guns on the tanks must account for it or else the shells will fall to the ground before reaching the target. Jonah knew alot about how gravity works and explained it to William by using examples of what happens to astronuts in space and on the moon. We learned that the first tank 'Mother' (WW1) went 6.46kph. Jonah thought it was hilarous that it would take an hour to get from here to town in it :) He then spent another hour looking up WW1 guns on the internet.