Basically why do people ask questions that are of little use to the world.
There is no fire wood problem and the government isn't trying to solve it.
Historians solve many different problems; there is no "key problem"
They keep trying!
binding things together
guessing
it is a prediction at what you think will be the outcome of the experiment...
clearly define th problem they are trying to solve
milling grain, as the name implies.
True (APEX)
how to get tasks completed that need to be done.
My amusement at the kids trying to solve the math problem made me laugh.
Paul MacCready and Peter Lissaman were trying to solve the problem of designing a human-powered aircraft that worked for sustained flight. They succeeded in 1977 and won the Kremer prize.