Back when Earth Day started 40 years ago, people interested in chemistry, physics and engineering were often associated with gas guzzlers, DDT, napalm and weaponry: Back then, new materials were perceived…
Read MoreBack when Earth Day started 40 years ago, people interested in chemistry, physics and engineering were often associated with gas guzzlers, DDT, napalm and weaponry: Back then, new materials were perceived…
Read More