Inertial frames of reference

inertialI have very fond memories about my high school maths and physics teacher. He is the one responsible for my love for science and the first who tried to teach me how to use my own brain and think freely.

He stressed the subject of inertial frame of reference, a kind of “independent observation point”, quite a lot. Think of when your sitting in a train and the train next to you moves: you have the impression that the train you’re on is moving. From the inertial frame of reference of the guy on the platform, it is clear which train is moving. My high school teacher loved to bring up Galileo’s struggle to convince his contemporaries that the Earth was revolving around the Sun, not the opposite, as most believed at those times.
My physics teacher told us that they were actually both right, both points of view had their own reasons based on physics if you observed them from the correct inertial frame of reference.

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Big changes in life

lifechangesThe greatest stresses a human being is exposed to during life are thought to be: the loss of a loved one, marriage and divorce, a new job or being fired, a relocation, and the birth of a child. We all have to confront ourselves with most of them sooner or later, there is no way to avoid it, that’s life. I know someone who has never changed address since he was born (when he got married he moved to another floor in the same building); he divorced eventually but he kept living in the same flat. He had lost his father too early and had to get himself a job when he was very young. Maybe he never changed home and ended up with no children to spare himself some stress. Continue reading  

Yeah I’m not shy, just introvert!

TED talks are illuminating. I appreciate most of them and unfortunately it is impossible to follow all of them. But I was drawn by the title “The power of introverts” by Susan Cain. She clarified the concept for me: there is a difference between being shy and being introvert. I already new that both are not the problem our society wants them to be. My favorite Italian pediatrician, a follower of Winnicot’s theories and a radicalist as the likes of Ivan Illich and William Godwin, makes a strong point about it: an introvert or shy kid will most certainly become a gentle person; the opposite is not that obvious.

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Being who we really are

Not many of us are lucky enough to be who they really artumblr_oav00tykwc1vpv2xso1_400e. The luckiest at least just “know” who they really are even if they actually aren’t that. I’ve always admired people who made a life out of their passions. It takes a lot to do it, unless your passion is working for a bank or be a government employee. You study and work in order to get a job and you’re done. What if you want to be a painter? The entire world will tell you not to do it, you will be starving, you need at least a plan B. But the ones who keep on and succeed in this are the one who did not listen… Continue reading  

Death bed

05_Passaggio KTMany are aware that dinosaurs disappeared nearly 66 million years ago, after a major climate change that made their environments inhospitable. Most people know about the dinosaurs disappearance, but few know that what happened at the end of the Mesozoic era was actually a mass extinction. Well, maybe even fewer people know that some clues of what happened in that period have been first found in central Italy, close to Saint Francis’ hometown, near a small city in the Apennines called Gubbio. The story is about father and son, Louis Alvarez, a Nobel prize physicist, and Walter Alvarez, a renown American geologist at Berkeley with a love for Italy.

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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, but 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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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  

Back to Gold

hifi-grado_prestige_goldWhen I first upgraded my Thorens turntable’s cartridge I was adviced to look into Grado’s catalogue. I choose the top of the Prestige series, which in 2005 was the Gold. I was happy with the sound I achieved on the Thorens, so when the time came, I replaced the needle with a Gold1 which was the available choice in 2010. Continue reading  

Never forget your first guitar

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Lately, I’ve been thinking a lot about my past. Not actually in a nostalgic way, but as something to be given more value, the correct value. Guitar playing has always been my trademark. The guitar has been central to my youth. I started playing at 11 with clumsy attempts that my 9 year old sister had started. It was an old acoustic guitar, so cheap it hurt our fingertips very quickly. It was at our father’s parents home, seldom played by my father’s younger brother. My father had bought it used in the 50s. Soon a new acoustic followed but, again, cheap. It was new at least. We must have destroyed it by playing it in any circumstances. My parents bought me my first electric guitar just before I turned 16. And they made me the happiest teenager on Earth!
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