Scientists perform postmortem examinations on two fossils Two Pterodactylus hatchlings had identical wing fractures They lived 150 million years ago during Jurassic Period Sept 19 (Reuters) - A ...
What You Need to Know: The Vought V-173, or “Flying Pancake,” defied traditional aircraft design with its flat, flying-wing shape. Invented in the 1930s by Charles Zimmerman, the V-173 was designed in ...
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