Had some unknown Russian made a theoretical breakthrough?

She consulted the machines; the theoretical breakthroughs behind them were recent, but capacity had grown swiftly.

So if you're looking for a theoretical breakthrough, don't ask anyone trained in America.

While incubating a great theoretical breakthrough, Einstein's brain exhibits the same mundane activity as anyone else's.

Instead, Dr. Teller asserted, he alone made the key theoretical breakthrough after a decade of work.

Your paper is the first real theoretical breakthrough we've seen in over a year.

Physics also makes significant contributions through advances in new technologies that arise from theoretical breakthroughs.

This research has produced advanced theoretical breakthroughs directly supporting engineering practice.

There usually is a pathetic close second for any theoretical breakthrough in academia.

Achieving no theoretical breakthroughs, they had finally agreed to go ahead with a modification of the strategy used at Adonis.