This produced nothing useful either.

You can't just con the world's economies by producing nothing useful and just creating a load of GDP on internal spending forever....the rest of the world starts to catch up.

Detectives and prosecutors say that such cases demand talking to every co-worker, and many surviving patients, but that the interviews often produce nothing useful.

Allowing for the fact that only certain skeletal muscles of a horse produce useful "horsepower," the scientists' calculation showed that a 600-kilogram horse should be able to produce about 18,000 watts, which is equivalent to 24 horsepower.

They were once cultivated as a protective" "Never heard lgen produced anything useful except heat and sand," quipped someone.

Weeks went by, and the experiment produced nothing useful.

Those other bases are experimental and agricultural and produce nothing useful to you.