The geology of Rome’s sampietrini

What’s so special about the “sampietrini”, those little square bricks typical of Rome’s old roads? The sampietrini have been used since the times of pope Sixtus V in the late 1500s but the name was invented later in 1725 after the new paving project of St. Peter’s square. “Hard as a sampietrino” is a common expression in Rome. Sampietrini are made of a hard and heavy volcanic rock. It is very interesting to a geologist: at first sight, you might confuse it with basalt; well, maybe a special kind of basalt. Actually, it is not correct to call it basalt. It is a rather rare rock around the world, although not in the Mediterranean area. But everything would be clearer if we knew more about the basalts themselves…

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Thanksgiving my ….?

thxThis year I had the chance to celebrate the Thanksgiving with some American friends of mine. I am completely Italian and I still have many doubts about celebrating Halloween in our country or having a Black Friday here. But I am the same one who didn’t believe McDonald’s had a chance in the country of pizza and I am still dubious about any business for Starbucks here. But I was proved wrong, so I gladly enjoyed the thanksgiving dinner in Rome with some dear American friends.

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We are our passions

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When I was a child, people knew me as the kid who sang the songs also imitating the sounds of the instruments with his mouth. I remember how amused my uncles and aunts were as I covered some famous Italian melodies of the time. Unfortunately I was not exposed as a kid in the 60s/70s to the great music of those years. Rolling Stones, dei Led Zeppelin, Jimi Hendrix, Doors, Pink Floyd, were there but no one suggested I listened to them.
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My 14-year-old niece just bought her first new turntable

victoria3It is quite incredible that in the age of Spotify and Apple Music a teenager has actually looked for and purchased a turntable off the Internet. Vinyl records sales have surpassed the CDs a while ago. Digital music does no longer need a physical support. Compressed formats have reached an almost accetable quality even to hifi geeks like me. Teenagers largely use their own phones to download or stream their preferred music and MP3 players are disappearing. Nonetheless people have continued to buy vinyl records at an increasing rate. What surprised me was that teenagers would do it, too! Continue reading  

The teacher

insegnanteIn high school I had my head among stars, galaxies and nebulae, I wanted to be an astronomer and I had a math and physics teacher who made me dream. Perhaps he was responsible if I became passionate about science until I got a degree in this field and it was thanks to him that I was able to develop the skills to succeed. When I enrolled in that institute and I happened to be in that class, someone was warning me about serious trouble from that professor, a madman, out of his mind, a real nutcase. Others considered him a genius, with a teaching method of his own, very difficult to follow. I mean, the advice was to change class.

The 2016 Central Italy Earthquake

amatrice prima e dopoI am an Italian geologist and how can an Italian geologist not love the mountains of Central Apennines? This particular area of the Apennine Mountains has a precise geodynamical meaning. And they are also beautiful, green, with small villages harmoniously perched on the slopes around 1000 m above sea level, in an area where four different Italian regions meet: Latium, Marche, Umbria, and Abruzzo. Also an area of high seismic risk.

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