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

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

Luis Walter Alvarez - Wikipedia, the free encyclopedia.He is the young fella next to Arthur Compton on the left.

1979: From excess traces of iridium in late Cretaceous rocks, American scientist Luis Walter Alvarez theorizes that a large comet or asteroid struck the earth 65 million years ago, raising clouds of dust that reduced the amount od solar radiation penetrating the atmosphere and triggering the mass extinctions of dinosaurs and other Mesozoic life. Luis and Walter Alvarez at the K-T Boundary in Gubbio, Italy, 1981.

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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 Walter Alvarez (1911-1988), American experimental physicist and inventor. "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis"

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