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Luis Walter Alvarez, born in San Francisco, invented a radio distance and direction indicator. His research resulted in a major revision of nuclear theories.

Walter Alvarez is a professor in the Earth and Planetary Science department at the University of California, Berkeley. He is most widely known for the theory that dinosaurs were killed by an asteroid impact, developed in collaboration with his father, Nobel Prize winning physicist Luis Alvarez.

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Dinozor neslinin nasıl yok olduğunu açıklamaya çalışan bir çok iddia ortaya atılmıştır. Geçmiş yıllarda, dinozor türlerinin kısa bir zaman toplu olarak nasıl yok olduğu uzun bir müddet açıklanamamış ve yanardağdaki patlamalardan iklim değişikliklerine kadar çeşitli teoriler öne sürülmüştür. Nobelli fizikçi Luis Alvarez ve oğlu jeolog Walter Alvarez, bir göktaşının türü ortadan kaldırdığını 1980’de ileri sürer. Alvarezler’in iddiası 80’lerin sonları…

Alvarez Hypothesis: Origin and Evidence Parrish illustration of asteroid blastIn the late 1970's geologist Walter Alvarez, and his father, Nobel-prize winning physicist Luis Alvarez, identified an unusual clay layer at the K/T boundary in Italy

This photo shows from left Helen Michel, Frank Asaro, Walter Alvarez and Luis Alvarez, co-authors of a seminal paper in 1980 on what killed the dinosaurs.

Luis Alvarez: Renaissance man. Polymath. Inspiration. Doer of amazing things. Very smily guy. Seriously, he is so happy! Which he should be. Because his accomplishments are amazing. It’s nice to find heroes in unexpected places … http://en.wikipedia.org/wiki/Luis_Walter_Alvarez

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