Advances in computers and biophysics have started a micro miniature revolution that allows scientists to envision and in some cases actually build microscopic machines.
But critics are sniping that building Western-themed towns on Shanghai's outskirts is impractical and insensitive in a country that once served as a stomping ground for foreign imperialists.
The various parts of The Falkirk Wheel were all constructed and assembled, like one giant toy building set, at Butterley Engineering's Steelworks in Derbyshire, some 400 km from Falkirk.
All through the summer, thousands of your fellows are moulding honeycomb in the hive. But who will afterwards separate and distinguish the results of your Labour?
The question "why" is a bit more problematic. Twenty century followers of ancient mystical beliefs are sure that Stonehenge has a connection with summer and winter solstices.