Related topics: nasa

Early urbanism found in the Amazon

More than 20 years ago, Dr. Heiko PrĂ¼mers from the German Archaeological Institute and Prof. Dr. Carla Jaimes Betancourt from the University of Bonn, at that time a student in La Paz, began archaeological excavations on ...

Aerodynamics of perching birds could inform aircraft design

If you have ever watched a bird land on a tree branch, you may have noticed that it rapidly pitches its wings upward at a high angle to execute a smooth landing. However, for some birds, they land by folding their wings as ...

Using marinated eggs to demonstrate diffusion

Marinated, or pickled, eggs are enjoyed by cultures around the world. There are Pennsylvania Dutch red-beet pickled eggs, German-style ones with a heavy dose of mustard, and Asian recipes that use rice vinegar and soy sauce, ...

Study identifies patterns in bird-plane collisions

Worldwide, the cost of bird collisions with planes has been estimated at $1.2 billion per year. But information on bird movements throughout the year can help avoid damage to aircraft and risk to passengers. Scientists from ...

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