southwestforests
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That may not be the manner of lack it might feel like at first glance:
after all,
aircraft haven't shifted the needle from 1910s aerodynamic principles, they still require wings, require production of lift, require propulsion machinery which itself moves air, just like aircraft did in 1910.
and
automobiles haven't shifted the needle from 1880s automotive principles, they still require wheels, tires/tyres, roads, power sources, infrastructure to supply and maintain those power sources. Yeah yeah, so there are drivererless cars, big whoopee, show me the driverless cars which have no wheels, require no roads, and do not have a powersource which needs periodic replenishing.
and
then there are the boats and ships which still rely on principles which are thousands of years old, yeah, yeah, yeah, we've changed propulsion from oars to sails to nuclear-electric plants turning screw propellors, and we've advanced construction material from wood to metal to synthetic composites, so?, they still get designed with displacement and wetted area and load limits and ... and ...; show me a ship which has no surfaces in contact with the water and therefore no frictional drag and now we'll have something to talk about.
