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Not sure what you mean with "light build". The SI (metric) unit for mass is the kilogram. For small objects, smaller units such as grams and milligrams can be used; for larger objects, the ton (= 1000 kilograms) is also used.
u can build 12 houses
the ancient Egyptians used the inclined plane to build there amazing pyramids.
i would build it the same way you would build an indoor bar just make sure you seal in very well with an all weather sealer and use treated lumber
it costs $20000 to build a water boat ride.
Yes, it's possible to build a frame weighing less than one kilo. If you're into official racing, not much point, as road race rules often require the bike to weigh more than 6.8 kg to be allowed to race.
He never did. The drawings from Leonardo da Vinci which supposedly were of a bicycle has later turned out to be faked.
The invention of steam engines to drive factory machinery allowed manufacturers to build factories away from running water.
Do a net search for "bicycle frame builder" + your area code. Expect to pay a fair bit for it.
If the rubber is rigid enough, I believe it is possible.
Electricity
speed limit
Invention of the steam engine allowed manufacturers to build their factories away from rivers.
Electricity
Allowed manufacturers to build factories almost anywhere.
Well, they can't be built out of dreams and wishful thinking.
Bicycle Making~APEX