There is a particular kind of double-take that everyone has experienced. A washing machine looks startled. A car in a car park appears smug. A pattern in wood grain resolves,…
Sound behaves very differently in water than in air, and most of the differences are counterintuitive.
It travels roughly four to five times faster. It carries very much further. And,…
One fact explains most of the others: a mushroom is largely water, and everything you do to it is a decision about where that water goes. Here are fifteen.
1.…
Source :Wikipedia
Look at a river from the air and it does something that ought to require an explanation. Water flows downhill, downhill is a direction, and the shortest route down…
The useful question about any unusual shoe is what it was standing on. Almost every answer is a property of the ground rather than a preference of the wearer. Here…
Look at any vernacular building and the roof tells you the weather before anybody mentions it. Here are eleven of the things a roof is arguing with.
1. The Steep…