Impact of the Transcontinental Railroad. There are few things in American history that had the impact of the Transcontinental Railroad. Before it was completed, it cost $1,000 to travel between California and New York, and it could take as long as six months to sail around Cape Horn in South America.mpact of the Transcontinental Railroad. There are few things in American history that had the impact of the Transcontinental Railroad. Before it was completed, it cost $1,000 to travel between California and New York, and it could take as long as six months to sail around Cape Horn in South America.
Complete the Seal With Reflective Waterproof Sealing Tape. This single-sided waterproof sealing tape is made of metallised TyvekÂ® and acrylic adhesive, and is ideal for sealing around penetrations, pipework, windows and doors. TyvekÂ® Metallised Tape provides a durable bond and offers high resistance to water and humidity.
Kevlar inventor Stephanie Kwolek dies. Read more about sharing. The inventor of Kevlar, the lightweight fibre used in bulletproof vests and body armour, has died aged 90. Stephanie Kwolek was a chemist at the DuPont company in Wilmington, Delaware, when she invented the stronger-than-steel fibre in 1965. It was initially intended to be used in automobile tyres.