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Category Archives: Articles
Looking for some water (scarcity)
Just after entering Mexico I take in the car José, Blanca and the little four-month-old José Luiz. The renting contract of the car states that the insurance does not cover any other persone than me. But says also that the … Continue reading
Ending a dammed nuisance – Underwater Free Flow Turbines
Written for The Economist, March 8TH – 14TH 2008, Technology Quarterly section. A new generation of free-standing turbines will liberate hydroelectricity from its dependence on dams? read more | digg story
Setting up a web publication with Drupal
Free-software — free as in freedom, not as in free beer. Richard Stallman, the inventor of the concept of free software (and most of the free software itself during the 80s), could not have imagined, thirty years ago, that free … Continue reading
Naples, a journey to the Vesuvius
“Thursday 22nd, about ten on the clock in the morning, the thundering noise began again; the oldest men declared, they never heard the like; and, indeed, it was very alarming: we were in expectation every morning of some dire calamity.”[1] … Continue reading
The massacre of Erba and Italian media
When three members of a family where stabbed to death, and so were two other people in the house, the Italian press smelled the blood and slung itself on to it. Nobody thought the massacre could have generated another horrible … Continue reading
Movimento Senza Terra: La storia non è finita (documentario)
L’immagine che arriva in Italia del Movimento dei lavoratori rurali Senza Terra (MST) in Brasile è a volte filtrata da un certo romanticismo, da una certa nostalgia da parte di chi auspica in Europa un risveglio delle coscienze capace di … Continue reading
ePassport: fees and security issues
Your electronic passport is not safe from the person behind you at the ticket counter. Adam Laurie, a computer programmer from Kent, has released a programme that allows anyone with the book-sized electronic reader device to steal information contained in … Continue reading
Polonium Lethal Dose
I thought this calculation of the lethal dose of Polonium could be interesting (I did not find it anywhere, but maybe it’s just me). Today the BBC published a nice article, but does not explain how a lethal dose can … Continue reading
Introduzione alla matematica
Questa introduzione alla matematica e` stata scritta per le prime lezioni del corso di matematica tenuto alla scuola Florestan Fernandes (vicino San Paolo, Brasile) del Movimento dei Lavoratori Senza Terra. Era indubbiamente troppo avanzata: dei 65 studenti che avevo solo … Continue reading
Italy and Mafia
A brief analysis of the fight against the Mafia in Italy Continue reading