ultimo numero della rivista Anno XLVII - n.4 - ottobre/dicembre 2014
Cultura

Teorie fisiche: forma e sostanza. Un esempio

Beginning of the 19th century, aether and relativity: Lorentz was looking for space-time transformation rules fitting with the covariance of Maxwell?s equations under the change from aether to Earths reference frame. Meanwhile, Einstein was stating the identity of the laws of physics in any inertial frame and the rules of invariance of the speed of light in vacuum, […]

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ultimo numero della rivista Anno XXIV - n.1 - gennaio/marzo 1991
Cultura

Trasporto di inquinanti dal mare all’atmosfera

The bubble-breaking, droplet-ejecting mechanism is the main pathway of the mass-transport effect at water to air interface (primarily at sea-air interface, but also lake, river…). Surface-active organic material (SAOM) tends to concentrate at the water surface. The bubbles, produced primarily by breaking waves, […]

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ultimo numero della rivista Anno XXIX - n.2 - aprile/giugno 1996
Cultura

Un problema “reale” per capire la fisica

Tacking a Real World Problem for Understanding Physics. Scientific knowledge is a complex game aimed at constructing a representation of reality characterised by specific questions, languages, ways of operating. Acquiring scientific knowledge therefore involves the ability of thinking and operating within a representation of reality, […]

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ultimo numero della rivista Anno XXIX - n.4 - ottobre/dicembre 1996
Cultura

Universo come oggetto fisico

Philosophers and scientists of antiquity used to speak of material things or bodies, by taking for granted that world was naturally divided into separate objects. Probably that notion is due to the fact that we are living in a comparatively cold sur-rounding (the surface of the Earth), […]

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ultimo numero della rivista Anno XXV - n.3 - luglio/settembre 1992
Cultura

Venti anni di effetto fotoelettrico (1887-1905)

After a concise description of the experimental aspects of the photoelectric effect, this article gives an account of me history of its discovery and of the research that followed, and discusses its contribution to the radical changes in the conceptual framework of physics from the last decade of the past century to Einstein’s work of 1905. […]

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