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First domesticated 10,000 years ago in the Fertile Crescent of the Middle East, wheat and barley took vastly different routes to China, with barley switching from a winter to both a winter and summer crop during a thousand-year detour along the southern Tibetan Plateau, suggests new research from Washington University in St. Louis.

Pop the top off a can of mixed nuts and, chances are, Brazil nuts will be at the top. This phenomenon, of large particles tending to rise to the top of mixtures while small particles tend to sink down, is popularly known as the “Brazil nut effect” and more technically as granular segregation.

Una nueva herramienta de la NASA vincula los cambios en el nivel del mar en 293 ciudades portuarias a regiones específicas del hielo terrestre fundido, tales como el sur de Groenlandia y la Península Antártica. Su objetivo es ayudar a los planificadores costeros a prepararse para la subida del nivel de los mares en las próximas décadas.Una nueva herramienta de la NASA vincula los cambios en el nivel del mar en 293 ciudades portuarias a regiones específicas del hielo terrestre fundido, tales como el sur de Groenlandia y la Península Antártica. Su objetivo es ayudar a los planificadores costeros a prepararse para la subida del nivel de los mares en las próximas décadas.

In the 19th century, over 5 million Germans moved to North America. It was not only a century of poverty, war and revolutions in what is now Germany, but also of variable climate. Starting at the tail end of the cold period known as the Little Ice Age, the century saw glacier advances in the Alps, and a number of chilly winters and cool summers, as well as other extreme weather events such as droughts and floods.

A new NASA tool links changes in sea level in 293 global port cities to specific regions of melting land ice, such as southern Greenland and the Antarctic Peninsula. It is intended to help coastal planners prepare for rising seas in the decades to come.