In the seventh century, the Church in Rome adopted the practice of Adoration of the Cross from the Church in Jerusalem, where a fragment of wood believed to be the Lord's cross had been venerated ...

Concorde flew at the cruising speed of Mach 2, twice the speed of sound, where even small increases in drag would have had a significant impact on fuel burn and range. A wider cross-section would have ...

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NASA almond CAD model is a standard for radar cross section (RCS) evaluation. In this article we compare the RCS simulation results from Shoot-Bouncing-Ray (SBR) method and ...

Detection and classification of unmanned aerial vehicles (UAVs) or unmanned aerial systems (UASs) requires an understanding of their characteristics in various regimes. Two relevant UAS ...

Dec. 30, 2021 (El Cajon) -- Two flight nurses and two pilots have been identified as those lost in the Learjet 35A plane crash that occurred Dec. 27 in the Bostonia neighborhood of El Cajon. The ...

The IAEA's NUCLEUS information resource portal provides access to over 100 scientific, technical and regulatory resources, including databases, applications, publications and training material. As it ...