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London’s Crossrail Is a $21 Billion Test of Virtual Modeling

Every component in Crossrail, London’s new underground train network, will be digitally tracked via an intricate 3-D model

14 min read
London’s Crossrail Is a $21 Billion Test of Virtual Modeling
Image: Crossrail

As the River Thames meanders eastward through London, it horseshoes around a lobe of land called the Isle of Dogs. In the 19th century, the area boasted one of the world’s busiest dock complexes, but by 1980 it had deteriorated into an industrial wasteland. More recently, thanks to massive redevelopment, the area has blossomed again to become Canary Wharf, an enclave of glittering glass skyscrapers that is now a global financial center. And here, in the murky waters of the North Dock, sits one of the largest and sleekest stations in London’s newest railway: Crossrail.

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Jay Last, a Father of Silicon Valley, Dies at 92

IEEE also mourns the loss of several former society presidents

4 min read
A smiling older man in glasses

Jay Last

Max S. Gerber/Redux

Jay Last

Silicon Valley pioneer

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How Claude Shannon Helped Kick-start Machine Learning

The “father of information theory” also paved the way for AI

3 min read
A photo of a man in a suit with his hand on a toy in a maze.
KEYSTONE/GETTY IMAGES

Among the great engineers of the 20th century, who contributed the most to our 21st-century technologies? I say: Claude Shannon.

Shannon is best known for establishing the field of information theory. In a 1948 paper, one of the greatest in the history of engineering, he came up with a way of measuring the information content of a signal and calculating the maximum rate at which information could be reliably transmitted over any sort of communication channel. The article, titled “A Mathematical Theory of Communication,” describes the basis for all modern communications, including the wireless Internet on your smartphone and even an analog voice signal on a twisted-pair telephone landline. In 1966, the IEEE gave him its highest award, the Medal of Honor, for that work.

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EP29LPSP: Applications in Plasma Physics, Astronomy, and Highway Engineering

Ideal for demanding cryogenic environments, two-part EP29LPSP can withstand temperatures as low as 4K

3 min read

Since its introduction in 1978, Master Bond EP29LPSP has been the epoxy compound of choice in a variety of challenging applications. Ideal for demanding cryogenic environments, two-part EP29LPSP can withstand temperatures as low as 4K and can resist cryogenic shock when, for instance, it is cooled from room temperature to cryogenic temperatures within a 5-10 minute window. Optically clear EP29LPSP has superior physical strength, electrical insulation, and chemical resistance properties. It also meets NASA low outgassing requirements and exhibits a low exotherm during cure. This low viscosity compound is easy to apply and bonds well to metals, glass, ceramics, and many different plastics. Curable at room temperature, EP29LPSP attains its best results when cured at 130-165°F for 6-8 hours.

In over a dozen published research articles, patents, and manufacturers' specifications, scientists and engineers have identified EP29LPSP for use in their applications due to its unparalleled performance in one or more areas. Table 1 highlights several commercial and research applications that use Master Bond EP29LPSP. Table 2 summarizes several patents that reference EP29LPSP. Following each table are brief descriptions of the role Master Bond EP29LPSP plays in each application or invention.

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