The study — which examined the more than 3.6 million U.S. patents granted between 1976-2017 — found older inventors are more likely to rely on their knowledge and experience, and build on novel ...
Since the first of January, 1852, no startling discovery has burst upon the world ; no striking nor very extraordinary invention has been made, yet for all this, the march of improvement has been ...
In 1856, at the age of 18, the English chemist William Henry Perkin was looking for a synthetic substitute for quinine, whose anti-malarial effects were well documented. By mixing aniline, derived ...