YDS PARAGRAF DOLDURMA / TEST 3 22. Soru

22.

Would-be inventors have long dreamed of
creating a machine so efficient that once started,
it would keep itself going indefinitely with no
consumption of fuel or other natural resources.
........ . It would also make the inventor very rich
and put today's electric and oil companies out of
business. The story of the quest began at the
dawn of civilisation and, for some, still
continues today.