Dynamic Cone Penetrometer, or DCP, is a tool used for evaluating the strength of soils on site. It also helps with monitoring the condition of granular layers and subgrade soils in pavement sections over time. It can be used to determine the right solutions for the sites, especially when soft
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In early March, Ethiopian Airlines CEO Tewolde Gebremarium told an aviation conference in Addis Ababa the coronavirus pandemic was “a temporary problem” – comparable to a natural disaster or a spike in oil prices. Now, several weeks later Africa’s largest flight carrier is locked in what Tewolde is describing as “a
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Underwater quantum links are possible across 30 meters (100 feet) of turbulent water, scientists have shown. Such findings could help to one day secure quantum communications for submarines. Quantum cryptography exploits the quantum properties of particles such as photons to help encrypt and decrypt messages in a theoretically unhackable way. Scientists
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A group of scientists used reanalyzed data from NASA’s Kepler space telescope to discover an Earth-size exoplanet orbiting in its star’s habitable zone. For the space agency’s purposes, habitable zone means the area around a star where a planet could support liquid water — and, potentially, other forms of life. This artist’s
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The global shipping industry is experiencing a wind-powered revival. Metal cylinders now spin from the decks of a half-dozen cargo ships, easing the burden on diesel engines and curbing fuel consumption. Devices like giant towing kites, vertical suction wings, and telescoping masts are well underway, while canvas sails flutter once more
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Flying taxis might sound too sci-fi to be serious, but the pedigree of firms investing in the emerging space shows it’s anything but a joke. From leading automakers such as Toyota, Uber, Hyundai, Airbus, and Boeing, to startups like Kitty Hawk and Lilium, all are vying to be the first to
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When Princeton researchers built a small pavilion at the United World College of South East Asia in Singapore last year, they expected that their exhibit’s unique design would cool inhabitants without the need for any air conditioning. But, it didn’t work as expected. A glitch spurred Forrest Meggers, assistant professor of
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The coronavirus crisis is changing daily life around the globe in dramatic ways — and homeowners and buyers are thinking about how they might make changes, too, to their properties, to be better prepared for disaster scenarios. Survivalist prepping is nothing new for many high-net-worth individuals. Wealthy homeowners have long been
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Understanding the impact of climate change on the ocean. When deciding on a major, one thing was clear for Michelle Kornberg — she didn’t want to be stuck inside for four years. “I like the environment of working on something in the lab, but I grew up in a very
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admixtures (singular or combination of admixtures) are added to concrete or mortar or grout mixture to achieve or improve desired properties in the fresh or hardened state. The admixtures are added to concrete based on their functions which they are play. Retardation or acceleration of concrete setting time, reduce segregation and
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