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Category: Aerospace Engineering

The science of windy cities — ScienceDaily

Global population and urbanization have boomed over the last few decades. With them came scores of new tall buildings, drones, more energy-efficient ventilation systems, and planned air taxis by Uber and other companies. But these technological advancements must contend with a natural physical phenomenon: wind. Scientists presented the latest findings on modeling and predicting urban airflow — in the hope of building better buildings, cities, and transportation — at the 73rd Annual Meeting of the American Physical Society’s Division of…

Shift in atmospheric rivers could affect Antarctic sea ice, glaciers — ScienceDaily

Weather systems responsible for transporting moisture from the tropics to temperate regions in the Southern Hemisphere have been gradually shifting toward the South Pole for the past 40 years, a trend which could lead to increased rates of ice melt in Antarctica, according to new research. Atmospheric rivers are long, narrow jets of air that carry huge amounts of water vapor from the tropics to Earth’s continents and polar regions. The new study finds atmospheric rivers in the Southern Hemisphere…

The Digital Developer Conference on Data & AI by IBM [Benefits & Details]

The year 2021 is fast approaching, and we need to be focused to grow our skills. What can be a better way to achieve the same than a Digital Developer Conference to help us grow?  Well, the next Digital Developer Conference is IBM’s Data & AI Conference on November 24th. Free registrations are now open and during the conference, you will get a plethora of opportunities to gain expertise, learn and grow in open source technologies, industry-centric enterprise solutions, and…

Machine learning guarantees robots’ performance in unknown territory — ScienceDaily

A small drone takes a test flight through a space filled with randomly placed cardboard cylinders acting as stand-ins for trees, people or structures. The algorithm controlling the drone has been trained on a thousand simulated obstacle-laden courses, but it’s never seen one like this. Still, nine times out of 10, the pint-sized plane dodges all the obstacles in its path. This experiment is a proving ground for a pivotal challenge in modern robotics: the ability to guarantee the safety…

Stretchable ‘skin’ sensor gives robots human sensation

Glove integrated with SLIMS sensor. Credit: Hedan Bai It’s not a stretch to say that stretchable sensors could change the way soft robots function and feel. In fact, they will be able to feel quite a lot. Cornell University researchers have created a fiber-optic sensor that combines low-cost LEDs and dyes, resulting in a stretchable “skin” that detects deformations such as pressure, bending and strain. This sensor could give soft robotic systems—and anyone using augmented reality technology—the ability to feel…

COVID-delayed Arctic research cruise yields late-season data — ScienceDaily

Researchers studying the Bering and Chukchi seas for three weeks in October found no ice and a surprisingly active ecosystem as they added another year’s data to a key climate change record. The research vessel Norseman II carried scientists from the University of Alaska Fairbanks, the University of Maryland Center for Environmental Science and Clark University. Maintaining the continuity of long-term observations is crucial as the region is affected by climate change. For example, the researchers collected sediments and small…

Final dance of unequal black hole partners — ScienceDaily

Solving the equations of general relativity for colliding black holes is no simple matter. Physicists began using supercomputers to obtain solutions to this famously hard problem back in the 1960s. In 2000, with no solutions in sight, Kip Thorne, 2018 Nobel Laureate and one of the designers of LIGO, famously bet that there would be an observation of gravitational waves before a numerical solution was reached. He lost that bet when, in 2005, Carlos Lousto, then at The University of…

New drone technology improves ability to forecast volcanic eruptions — ScienceDaily

Specially-adapted drones developed by a UCL-led international team have been gathering data from never-before-explored volcanoes that will enable local communities to better forecast future eruptions. The cutting-edge research at Manam volcano in Papua New Guinea is improving scientists’ understanding of how volcanoes contribute to the global carbon cycle, key to sustaining life on Earth. The team’s findings, published in Science Advances, show for the first time how it is possible to combine measurements from the air, earth and space to…

Local commuter train helps nuclear arms control researchers

Princeton’s small commuter line, “the Dinky,” helped improve arms control monitoring. Credit: Glaser et al With a new crisis seeming to dominate every news cycle, for now the threat of nuclear war has faded into the background of public attention. Yet the arsenals themselves have not vanished, and researchers at Princeton University are working to develop new methods to verify compliance with arms limitations treaties to help reduce the possible risk of a nuclear exchange. A team led by Alexander…

Secret surfing life of remoras hitchhiking on blue whales — ScienceDaily

Sticking to the bodies of sharks and other larger marine life is a well-known specialty of remora fishes (Echeneidae) and their super-powered suction disks on their heads. But a new study has now fully documented the “suckerfish” in hitchhiking action below the ocean’s surface, uncovering a much more refined skillset that the fish uses for navigating intense hydrodynamics that come with trying to ride aboard a 100-ft. blue whale (Balaenoptera musculus). In a study published Oct. 28 in the Journal…