Topic: Harry Harrison

What is a Pontoon Bridge?

WiseGeek - 558 days ago
Pontoon bridges are floating bridges supported by floating pontoons with sufficient buoyancy to support the bridge and dynamic loads. They were used to great advantage in many battles throughout time, including the Battle of the Garigliano, the Battle of Oudenarde, and many ...

Where Sewage Meets 'Peak Phosphorous'

Forbes - 620 days ago
Believe it or not, climate change and " Ostara, a Vancouver, Canada company backed in part by environmental advocate Robert Kennedy Jr., has patented a technique to extract valuable chemicals out of waste. (Kennedy, who among other things is president of the Waterkeeper ...

Wood-Boring Wasp Inspires Brain Surgery Robot

LiveScience - 1110 days ago
A new prototype surgical robot developed in Britain bores into the brain like a wood wasp. Tiny motors oscillate the shafts to propel the device forward just like the wood wasp. This medical team is not the first group to notice the ...