What do the following have in common? Bulletproof Kevlar vests– Stephanie Kwolek Fire escapes stairs– Anna Conley Windshield wipers– Mary...

The answer is that they were all invented by women, smart, imaginative women, not cautious observers on the sidelines. Of course there...

The answer is that they were all invented by women, smart, imaginative women, not cautious observers on the sidelines. Of course there...