After 2,000 years, a long-lost secret behind the creation of one of the world’s most durable man-made creations ever—Roman concrete—has finally been discovered by an international team of scientists, and it may have a significant impact on how we build cities of the future. — businessweek.com

CNN's Tom Foreman explains the strength of the tornado in Oklahoma and why some buildings couldn't withstand the force. — youtube.com

The Watts Towers in South Los Angeles will be the subject of a new study conducted by experts from UCLA to determine the stability of the historic sculptures, which were completed by Simon Rodia in 1954. The study, now underway, is expected to be completed by early next year. — latimes.com

In the same way that structural deficiencies can be detected with something solid, two engineers from Brigham Young University--Brian Mazzeo and Spencer Guthrie--are listening in for the tell-tale acoustics by splashing bridges with water. They're looking for something called "delamination." — popsci.com

After seven years of teaching structures to a mixed group of architecture and structural engineering graduate students at MIT, Paul Kassabian found that many of his future architects took a just-enough-to-get-the-homework-done approach to understanding those fundamental components. So he created an app to help them out. — fastcodesign.com

“The form was reinvented to an extent,” says Yanni Loukissas, a postdoc in MIT’s Program in Science, Technology, and Society (STS). And while the question of exactly which design changes should be credited to Utzon or Arup’s firm has been a matter of some dispute, the building, Louskissas says, stands as “an example where the engineer was instrumental in reshaping the project.” — web.mit.edu