The North Island Main Trunk Railway permitted overland travel and development of the New Zealand hinterland. Built under challenging conditions and over difficult terrain, all cuts, fills, and tunneling were minimized by careful use of the topography and by innovative engineering.
1997
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Image Credit: Courtesy Flickr/SibleyHunter (CC BY 2.0)Image Caption: Wellington Railway Station, part of the original North Island Main Trunk RailwayEra_date_from: 1908
1997
Founded in 1957, Raychem Corporation was the first company to successfully apply the new science of radiation chemistry to commercial use. This accomplishment led to the creation of tough new materials and high-performance products such as irradiated polyethylene insulated wire and heat-shrinkable tubing through the crosslinking of polymeric materials.
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Image Caption: First Successful Commercialization of Radiation Chemistry
1997
On January 4, 1891, Herbert H. Dow succeeded in producing bromine electrolytically from central Michigan’s rich brine resources. In the years that followed, this and other processes developed by Dow and the company he founded led to an increasing stream of chemicals from brines. The commercial success of these endeavors helped to promote the growth of the American chemical industry.
The plaque commemorating the event reads:
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Image Credit: courtesy of the Post Street Archives.Image Caption: Herbert Dow in 1888
1997
Innovations
