Gregory Wallace

Wire FAA investigating Southwest flight that flew just 525 feet above Oklahoma town, triggering altitude warning

(CNN) — A whistleblower has come forward Wednesday alleging parts of Boeing's 787 Dreamliner planes were built in an unsafe manner – potentially leading to “devastating consequences.”

(CNN) — A whistleblower has come forward Wednesday alleging parts of Boeing’s 787 Dreamliner planes were built in an unsafe manner – potentially leading to “devastating consequences.”

Renton, Washington CNN — The missing paperwork on the 737 Max that lost a door plug on an Alaska Airlines flight in January isn't

By Gregory Wallace and Chris Isidore, CNN Updated Renton, Washington (CNN) — For months, missing paperwork has hindered the

This photo released by the National Transportation Safety Board shows a gaping hole where the paneled-over door had been at the fuselage plug area of Alaska Airlines Flight 1282 on Sunday, Jan. 7, 2024, in Portland, Ore. A panel used to plug an area reserved for an exit door on the Boeing 737 Max 9 jetliner blew out Jan. 5, shortly after the flight took off from Portland, forcing the plane to return to Portland International Airport. (National Transportation Safety Board via AP)

By Gregory Wallace, CNN (CNN) — Airport employees in Portland, Maine, were forced to clear out of the way when a Southwest Airlines jet on

(CNN) — A former Boeing quality-control manager alleges that for years workers at its 787 Dreamliner factory in Everett, Washington, routinely took parts that were deemed unsuitable to fly out of an internal scrap yard and put them back on factory assembly lines .

A former Boeing quality-control manager alleges that for years workers at its 787 Dreamliner factory in Everett, Washington, routinely took parts that were deemed unsuitable to fly out of an internal scrap yard and put them back on factory assembly lines .

We introduce a simple, fast, efficient and non-destructive method to study the optical near-field properties of plasmonic nanotriangles prepared by nanosphere lithography. Using a rectangular Fourier filter on the blurred signal together with filtering of the lower spatial frequencies to remove the far-field contribution, the pure near-field contributions of the optical images were extracted. We performed measurements using two excitation wavelengths (532.1 nm and 632.8 nm) and two different polarizations. After the processing of the optical images, the distribution of hot spots can be correlated with the topography of the structures, as indicated by the presence of brighter spots at the apexes of the nanostructures. This technique is validated by comparison of the results to numerical simulations, where agreement is obtained, thereby confirming the near-field nature of the images. Our approach does not require any advanced equipment and we suggest that it could be applied to any type of sample, while keeping the measurement times reasonably short.