Archive | Scienza

Steve Jobs è morto. Addio ad uno dei pionieri dell’era informatica.

Tags: , , , , , , ,

Steve Jobs è morto. Addio ad uno dei pionieri dell’era informatica.

Posted on 06 ottobre 2011 by Fabio Zannettino

Steve Jobs è morto.  Addio ad uno dei pionieri dell’era informatica.

Era da tempo malato di tumore e da poco aveva affidato le redini della Apple a Tim Cook.

 RIP Steve

Questo è il messaggio che si legge sul sito dell’azienda che Steve aveva fondato e alla quale si è dedicato finchè le forze glielo hanno permesso:

Le persone che hanno lavorato con lui o che per forza di cose vi sono state in competizione o che semplicemente lo ammiravano oggi lo ricordano così:


Bill Gates – Microsoft:

I’m truly saddened to learn of Steve Jobs’ death. Melinda and I extend our sincere condolences to his family and friends, and to everyone Steve has touched through his work.

Steve and I first met nearly 30 years ago, and have been colleagues, competitors and friends over the course of more than half our lives.

The world rarely sees someone who has had the profound impact Steve has had, the effects of which will be felt for many generations to come.

For those of us lucky enough to get to work with him, it’s been an insanely great honor. I will miss Steve immensely.


Steve Ballmer – Microsoft:

I want to express my deepest condolences at the passing of Steve Jobs, one of the founders of our industry and a true visionary. My heart goes out to his family, everyone at Apple and everyone who has been touched by his work.


Larry Page – Google:

I am very, very sad to hear the news about Steve. He was a great man with incredible achievements and amazing brilliance. He always seemed to be able to say in very few words what you actually should have been thinking before you thought it. His focus on the user experience above all else has always been an inspiration to me. He was very kind to reach out to me as I became CEO of Google and spend time offering his advice and knowledge even though he was not at all well. My thoughts and Google’s are with his family and the whole Apple family.


Sergey Brin – Google:

From the earliest days of Google, whenever Larry and I sought inspiration for vision and leadership, we needed to look no farther than Cupertino. Steve, your passion for excellence is felt by anyone who has ever touched an Apple product (including the macbook I am writing this on right now). And I have witnessed it in person the few times we have met.

On behalf of all of us at Google and more broadly in technology, you will be missed very much. My condolences to family, friends, and colleagues at Apple.


Mark Zuckerberg – Facebook:

Steve, thank you for being a mentor and a friend. Thanks for showing that what you build can change the world. I will miss you.

Robert A. Iger – Walt Disney:

Steve Jobs was a great friend as well as a trusted advisor. His legacy will extend far beyond the products he created or the businesses he built. It will be the millions of people he inspired, the lives he changed, and the culture he defined. Steve was such an “original,” with a thoroughly creative, imaginative mind that defined an era. Despite all he accomplished, it feels like he was just getting started. With his passing the world has lost a rare original, Disney has lost a member of our family, and I have lost a great friend. Our thoughts and prayers are with his wife Laurene and his children during this difficult time.

Barak Obama e Michelle Obama – Presidente degli Stati Uniti e First Lady:

Michelle and I are saddened to learn of the passing of Steve Jobs. Steve was among the greatest of American innovators – brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it.

By building one of the planet’s most successful companies from his garage, he exemplified the spirit of American ingenuity.  By making computers personal and putting the internet in our pockets, he made the information revolution not only accessible, but intuitive and fun.  And by turning his talents to storytelling, he has brought joy to millions of children and grownups alike. Steve was fond of saying that he lived every day like it was his last.  Because he did, he transformed our lives, redefined entire industries, and achieved one of the rarest feats in human history: he changed the way each of us sees the world.

The world has lost a visionary. And there may be no greater tribute to Steve’s success than the fact that much of the world learned of his passing on a device he invented. Michelle and I send our thoughts and prayers to Steve’s wife Laurene, his family, and all those who loved him.


Commenti disabilitati su Steve Jobs è morto. Addio ad uno dei pionieri dell’era informatica.

Attività solare in aumento. Possibili problemi con il sistema GPS.

Tags: ,

Attività solare in aumento. Possibili problemi con il sistema GPS.

Posted on 10 febbraio 2010 by Fabio Zannettino

Nei prossimi mesi l’attività solare subirà un notevole incremento. La conseguenza è che il Sole emetterà radiazioni con lunghezze d’onda che andranno a coprire lo spettro delle onde elettromagnetiche utilizzate nelle telecomunicazioni.

I segnali GPS per giungere dai satelliti in orbita geostazionaria fino alle postazioni terrestri devono attraversare la ionosfera, in cui già con la normale attività solare devono fare i conti con le particelle ionizzate che causano interferenze. L’attività solare crea ulteriori particelle ionizzate e questo nei prossimi mesi potrebbe portare ad alcuni problemi quantificabili in una assenza di segnale per alcuni minuti o in errate geolocalizzazioni.


Commenti disabilitati su Attività solare in aumento. Possibili problemi con il sistema GPS.

Photos from our Flickr stream

See all photos