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Category: Aerospace Engineering

Origins of Sun’s swirling spicules discovered — ScienceDaily

At any given moment, as many as 10 million wild jets of solar material burst from the sun’s surface. They erupt as fast as 60 miles per second, and can reach lengths of 6,000 miles before collapsing. These are spicules, and despite their grass-like abundance, scientists didn’t understand how they form. Now, for the first time, a computer simulation — so detailed it took a full year to run — shows how spicules form, helping scientists understand how spicules can…

Writing fast, deterministic and accurate Android Integration tests

Our choice for Android UI tests is Espresso, which is arguably the best, most popular and recommended library for writing integration tests. However, the extra confidence provided by a solid test suite can be quickly affected by flaky tests creeping up and undermining everyone’s trust on them. In fact, flaky tests are poison! Integration tests are at the very top of the Test Pyramid, but that doesn’t mean that they have to be slow, brittle or expensive to write. They…

Tracking methane with robust laser technology

The LiDAR system for the MERLIN mission incorporates all components from the pump laser to the frequency conversion in a particularly compact design suitable for space operation. Credit: Fraunhofer ILT, Aachen Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute…

Flight deck Ouija boards go digital

Lt. Timothy Sullivan, assigned to the amphibious assault ship USS Iwo Jima (LHD 7), tries out the Office of Naval Research TechSolutions-sponsored Deployable Ship Integration Multitouch System (DSIMS) located in the Carrier Analysis Lab at Naval Air Warfare Center Aircraft Division Lakehurst during pre-deployment training. DSIMS is a mobile software package that features a digital, touchscreen image of a ship’s flight deck or hangar bay and enables aircraft handlers using a laptop or LCD screen to adjust various configurations from…

Is Flying Privately the Future of Air Travel?

You may think that A-listers and the incredibly wealthy are the only people who can afford to fly by private jet, but you’d be surprised to learn that these people only make up a minority of private jet flyers. You’re more likely to see successful business owners, families or groups of friends splashing out on a private jet, enjoying a more convenient and luxury travel experience than flying with a commercial airline. In this post, we’ll take a look at…

How soil bacteria can protect against corrosion in steel

The cell surface of a common soil bacteria (Streptomyces sp.) is not only hydrophobic but it protects the organism from desiccation and therefore the movement of water across the cell barrier. Swansea researchers extracted this biomaterial and dissolved it to create a protein solution that would self-assemble along hydrophobic / hydrophilic interfaces. Using this property, they were able to coat steel products and produce a robust protein coating that was less than 10 nanometers thick, able to withstand boiling and…

Increased drone use creating safety concerns in Canadian airspace

Geography doctoral student Paul Nesbit has led a study on how the proliferation of drones in Canadian airspace is causing new safety concerns. Credit: Paul Nesbit   Canadian airspace is adapting to the rise of uninhabited aerial vehicles (UAVs) or, drones, which now outnumber piloted aircraft in our skies, and a new study from the University of Calgary shows this has led to a growing number of incidents and safety concerns. The study — published online in the Journal of Unmanned Vehicle…

The Battle to be the Uber of the Skies

Many people dream of taking to the skies in a private jet, but this is often seen merely as a fantasy. Flying in a private jet is deemed to be an experience reserved exclusively for the rich and the famous, but this is now changing and it is becoming a realistic form of transportation for many. On-Demand Flights This is thanks to the rise of on-demand services in recent times. Using your smartphone to order food, arrange dates and book…

Which create less carbon pollution?

These heat maps show carbon dioxide emission differences between drone and truck deliveries as a drone’s energy requirements (measured in watt-hours per mile) and the number of stops on a route increase. Red areas reflect conditions in which drones emit less carbon dioxide than trucks (lighter packages, fewer stops), while blue areas denote conditions in which drones emit more (heavier packages, more stops). Credit: University of Washington Delivering packages with drones can reduce carbon dioxide emissions in certain circumstances as…

A 3-D-printed rocket engine just launched a new era of space exploration

Credit: RocketLab The rocket that blasted into space from New Zealand on May 25 was special. Not only was it the first to launch from a private site, it was also the first to be powered by an engine made almost entirely using 3-D printing. This might not make it the “first 3-D-printed rocket in space” that some headlines described it as, but it does highlight how seriously this manufacturing technique is being taken by the space industry. The team…