Machado, Romana Death and taxes are unsolved engineering problems
Machado, Romana quotes
Unsolved Problems in Physics The field of physics has expanded exponentially in the last few centuries, but scientists still grapple with a number of problems and questions that remain unsolved. Several of these problems are theoretical: they involve observed phenomena that existing theories seem incapable of explaining. Others are experimental: they concern theories that do not lend themselves to testing or phenomena that cannot ...
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