It was a radical experiment; she shouldn't even consider it.
After 50 years, members of the first graduating class at what was then a radical experiment were reunited.
In himself, Clarke seemed an unlikely leader for such a radical experiment.
But in the Los Angeles area the concept of living above the store is an almost radical social experiment.
Plans for British cities were hardly affected by the radical experiments and literature of some other countries.
Such supercomputers were once considered radical experiments on the fringe of computer research.
A radical experiment at the time, it is now to be found on a number of other major airlines.
I suppose the most radical experiments are the least likely to bear fruit.
There are two very radical political experiments under way in the Middle East.
A radical experiment like this couldn't be done by them.