ChemE Stewart <[email protected]> wrote:

Flat mirrors, water boilers and steam turbine manufacturing have
> already evolved, like the wheel


Combustion technology (fire) is by far the oldest and best developed
technology, but it has made tremendous strides in the last 50 years, and
there is no telling how much better it might get. Billions of dollars are
invested in combustion technology.

Automobile tires and wheels have changed quite a bit in the last 10 years.
Eventually, tires that do not need to be inflated will be perfected. That
will be a major improvement.

Wind turbines have also evolved since they were invented 2000 years ago,
but the pace of change and improvement increased exponentially in the last
generation. Wind turbine size and power has increased by a factor of 100 in
the last 30 years, from 75 kW to over 7,500 kW. The turbines now being
constructed would have been unimaginable when the technology began to
undergo a renaissance in the 1970s. See:

http://en.wikipedia.org/wiki/File:Wind_turbine_size_increase_1980-2011.png

- Jed

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