Archive for April, 2010

Brief History of Time

Posted: April 30, 2010 in reading
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Cartea mi s-a parut geniala si regret ca nu am citit-o mai devreme. Iar Stephen Hawking nu mai are nevoie de nicio prezentare.

Aseara am citit Concluziile si scurtele observatii despre vietile lui Einstein, Galilei si Newton.

Ca si la Michio Kaku (Fizica imposibilului), si in Hawking gasesc acel om pasionat de cunoastere, de intelegere, pasionat de a arata si a invata si pe altii, de a-i face mai buni, de a-i face sa cunoasca mai mult si mai multe. Mi se pare genial ca un om destept si instruit imparte din cunostintele sale cu ceilalti si isi doreste mai multa cunoastere.

In ultimul paragraf din Concluzii, dupa ce descrisese cu parere de rau ca cei mai multi oameni nu sunt interesati si nici competenti sa inteleaga si sa discute probleme filosofale si fizico-matematice despre crearea si existenta Universului si a Omului, Hawking isi manifesta totusi optimismul ca, poate si prin cartea lui, dar mai ales prin progresul stiintei, la un moment dat toti vom fi capabili sa ne punem intrebarea primordiala: “De ce?”

However, if we do discover a complete theory, it should in time be understandable in broad principle by everyone, not just a few scientists. Then we shall all, philosophers, scientists, and just ordinary people, be able to take part in the discussion of the question of why it is that we and the universe exist. If we find the answer to that, it would be the ultimate triumph of human reason – for then we would know the mind of God.

Desi nu pricep mare lucru din fizica si am cunostinte foarte limitate in matematicile superioare, eu as vrea sa pot sa cuprind cu intelegerea lucrurile despre care scrie omul asta. Din pacate, cred ca dorinta lui ca toti oamenii sa detina cunoasterea spre care el a tins intreaga viata si in toata munca de cercetare este una nerealizabila. Si nu pentru ca oamenii nu ar fi capabili sa cunoasca, ci pentru ca nu vor, pentru ca pentru cei mai multi sunt mai simple limitarea, ignoranta, confortul zilnic al propriilor limite si obisnuinta de a trai intr-un fel, fara a pune intrebari, fara a cere mai mult, fara a vrea sa devina mai buni.

Azi l-am intrebat pe tiran daca ma intretine sa ma apuc de pian 😀

Unlike Mozart, who never managed to achieve for himself a permanent patron, or Haydn, who was a music slave to the same family for over 29 years, Beethoven was an equal opportunity artist. He took from everybody, faught with an insulted all of them at a moment or another, and managed to maintain his singurality throughout.

Beethoven got along with N{…}but Haydn was for Beethoven, after his birth father, the second musical father, an authority figure the likes of which he was bound to have huge problems with. The lessons with Haydn took place across a span of only 14 month {…} Haydn, at best was at best a distracted teacher{…} Haydn must have known that Beethoven was his equal and very well surpassed him as a composer {…}

Still, Haydn was one of the most generous spirits in the history of music and things that would have brought other people to homicide…Beethoven’s homicide…that is – left Haydn urked, but not infuriated.

However, he would become infuriated very soon, for reasons that we’re about to find out. {…} You would think that Beethoven would show at least some respect for a composer that wrote 90 symphonies and was the most famous composer in the german-speaking world at the time.

But No, Beethoven went so far as to hire someone named Johann Schenck (??) to do the exercises Haydn was assigning Beethoven, because Beethoven didn’t think they were worth his own time. So rather than taking the money he was supposed to pay Haydn for the lessons, he took the money and paid Schenck to do his own homework, for him. And this was just the beginning.

{…}

The rules meant Nothing to Beethoven.

Robert Greenberg e un nenea care preda la The Teaching Company. De ceva timp ascult una dintre prelegerile lui, publicate de compania de mai sus, numita How to listen to and understand Great Music.

Initial m-am gandit ca va fi un set de prelegeri greu de digerat, ele fiind impartite pe capitole in functie cronologica:

Introduction
Ancient World and the Early Church
Middle Ages – Darkness, Change and Diversity
Introduction to Renaissance
The Renaissance Mass – Josquin des Prez, Palestrina, and the Counter Reformation
Secular Music in the late Renaissance and the Search for Expression – the Madrigal
Introduction to Baroque
Style Features of Baroque Music and a Bried Tutorial of Pitch, Melody & Texture
The High Baroque
The Rise of German Nationalism in Music
Fugue
Baroque Opera
Baroque Sacred Music, The Oratorio
Baroque Sacred Music, The Lutheran Church Cantata
Baroque Instrumental Forms – Passacaglia
Ritornello Form and the Baroque Concerto
The Enlightment and an Introduction to Classical Era
The Viennese Classical Style, Homophony and the Cadence
Classical-Era Form – Theme and Variations
Classical-Era Form – Minuet and Trio: Baroque Antecedents
Classical-Era Form – Minuet and Trio II
Classical-Era Form – Sonata Allegro Form
Classical-Era Orchestral Genres – The Symphony – Music for Every Person
Classical-Era Orchestral Genres – The Concerto
Classical-Era Opera – The Development of Opera Buffa
Classical-Era Opera – Mozart and the Operatic Ensemble
The French Revolution and an Introduction to Beethoven
Beethoven’s Symphony No.5 in C Minor
Introduction to Romanticism
Formal Challenges and Solutions in Early Romantic Music – Miniatures: Lieder and Chopin
Formal Challenges and Solutions in Early Romantic Music – Berlioz
Nineteenth-Century Italian Opera – Bel Canto Opera
Nineteenth-Century Italian Opera – Giuseppe Verdi
Nineteenth-Century German Opera – Nationalism and Experimentation
Nineteenth-Century German Opera – Richard Wagner
The Concert Overture
Romantic Nationalism – Post 1848 Musical Nationalism
Russion Nationalism
The Early Twentieth Century and the Modernist Movement – An Introduction
Early Twentieth-Century Modernism – The Search for a New Musical Language – Debussy
Early Twentieth-Century Modernism – The Search for a New Musical Language – Stravinsky
Early Twentieth-Century Modernism – The Search for a New Musical Language – Schoenberg

Binenteles, sunt FOARTE MULTE, unele dintre prelegeri au cate 2 parti, si fiecare parte are cam 1 ora in total.

Binenteles, m-am oprit la Beethoven, my favorite. O sa citez putin din introducere, unde profesorul incearca sa demitizeze pe compozitor, incepand cu Chopin, Mozart si…Beethoven.

Idols don’t write music. PEOPLE write music. So, we should not worship as idols our composers, and neither should the music of these composers should be worshiped as super-human creation. There are few perfect works, and I would tell you fewer perfect composers. Composers are just people who describe what they see, hear and feel in musical terms. {…}  Let’s listen to the Beethoven’s 5th Symphony, Opus 67

Well, let me tell you just a little about mister Beethoven. His appearance – not good, he had bad hair, perhaps the worst hair in the history of musical composition, he was short {…}  Beethoven wrote his most joifyl music when he was in his most dark moods. Music from 1802, when he was in the depths of his depression. Let’s ask ourself what is this music about: is it heroic? as symphony no5, is it grieving and unhappy…and if not, what is this music all about? :

[Symphony no.2, 4th movement] – primele acorduri

Well, this  music sounds kindda up bit, this doesn’t sound depressed, but it sounds kindda weird too, it is a strange theme for a symphonic movement. What an odd way to begin a symphonic movement. What could this music possibly be about? Well, I’ll tell you what it is about…

When Beethoven got depressed, and, boy, was he depressed? In 1802, his GI Tract would go bunkers. Belching, burping, gas, flatulante. You name it, he got it. He was a one man band, my friends. You would NOT go into an elevator with Beethoven in the fall of 1802.

What’s this movement about? It’s about his Gastro-Intestinal problems. It begins with a burp, or hiccup [canta la pian primele acorduri] followed by a rumble or a growl..aaah, Don’t blame the messenger! This is crude. But it’s true. Beethoven’s Symphony no.2, 4th movement, makes fun of  the physical problems he’s having as a result of his stress and depression…

Real people, real music. You’ll never listen to this movement the same ever again 😛 🙂

Imi place ca omul asta incearca sa ne aduca aproape de compozitori, de lumea muzicii, facand-o, cumva, accesibila, frumoasa, placuta sau, dimpotriva, nelegata, prost compusa, lenta sau prea rapida. Cursul incearca pana la urma sa formeze o cultura in domeniul asta si sa formeze capacitatea de a face judecati de valoare asupra muzicii, fie ca ne place sau nu, dar vom sti sa observam si exprimam coerent si corect _ce_ si _de ce_ ne place sau nu o compozitie.

Youtube link

Youtube link

Puteau sa-l faca Beethoven Rocks si sa cante numai asta in continuu. As fi fost super happy 8-> 😡

Youtube link

Youtube link

Mozart ROCKS

Posted: April 13, 2010 in media-culture
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Mozart Rocks

Imi vine si acum sa tzopai si sa zburd prin casa. Cred ca acesti 100 RON dati pe bilet sunt cel mai bine cheltuiti 100 RON din viata mea!

Nici nu stiu cu ce sa incep. In primul rand, oamenii:

– super minunata Orchestra George Enescu, si dirijorul Tiberiu Soare

Calin Grigoriu – care a compus o piesa pentru spectacolul asta si a orchestrat mai multe alte piese, de la Zeppelini, pana la Mozart si Rossini

Cezar Popescu – chitaristul de la Vita de Vie – mai nou chitaristul meu roman preferat; omul asta e dovada vie ca artistul nu inseamna dat din fund sau poze photoshopate, ci multa-multa munca, stradanie, studiu aprofundat si maiestrie la instrumentul ala – Cezar a ales cea mai grea simfonie din program, a 4-a de Bach (eu nu prea stiu Bach, dar parca asta zicea prezentatorul ca este 🙂 ), plus Fortuna (Carmina Burana)

Claudiu Ursache – ceva din Bach (nu as putea spune ce,..sunt varza la capitolul Bach, recunosc :”> ) si Offenbach (Orpheus in the Underworld)

Cosmin Lupu, Florin Demea, Horea Crisovan – mai muuulte arii, nici nu mai stiu care, multe de Mozart in general

Remus Carteleanu – care mi-a facut cea mai mare placere, anume a interpretat Simfonia a 5-a din Beethoven

O sa caut clipuri maine pe Youtube, sa actualizez. Mihai a facut poze si o sa urce si el.

Voiam sa nu se mai termineee 8->

Fizica Imposibilului

Posted: April 10, 2010 in reading
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In liceu, pentru un proiect destinat unui concurs stiintific, am asamblat un dezintegrator atomic in garajul mamei. M-am dus la compania Westinghouse si am adunat aproape 200 de kilograme de deseuri de otel de transformator. In perioada Craciunului, am infasurat peste 30 de kilometri de sarma de cupru pe terenul de fotbal al liceului. In cele din urma, am construit un accelerator de particule de tip betatron de 2,3 milioane electronvolti, care consuma 6 kilowati de putere electrica (intreaga putere instalata a locuintei mele) si genera un camp magnetic de 20000 de ori mai mare decat campul magnetic terestru. Telul era generarea unui fascicul de radiatii gama indeajuns de puternic incat sa creeze antimaterie.

Proiectul meu stiintific m-a ajutat sa ajung la Concursul National de Stiinta si, in cele din urma, mi-am vazut visul implinit, castigand o bursa la Harvard, unde puteam, in sfarsit, sa-mi realizez scopul de a deveni un fizician teoretician si sa calc pe urmele idolului meu, Albert Einstein.

Asa scrie undeva in Introducere profesorul de fizica teoretica al catedrei Henry Semat de la Graduate Center, City University din New York, Michio Kaku. Cartea se numeste Fizica Imposibilului. Am gasit-o la Carturesti, hoinarind printre rafturile de carti colorate de la etajul 1, nemaigasind carti care sa-mi starneasca entuziasmul.

Desi nu am treaba cu fizica, nici pe departe cu cea cuantica, cartea asta m-a impresionat. Mi-a placut omul asta, atat de entuziasmat si de pasionat de fizica, de cunoastere, de a intelege lucrurile si de a face posibile lucruri considerate imposibile. Fan al cartilor SF si al Star Trek, scriitorul a capatat pasiunea pentru stiinta din lucrurile minunate vazute in lumea SF. Pasiunea l-a ajutat sa devina un celebru fizician si sa incerce sa aduca in lumea noastra ceea ce vazuse/citise in SF … sau macar sa defineasca si sa cerceteze cat de “imposibile” sunt anumite lucruri, cum ar fi scutul de forte din Star Trek, tunelarea cuantica, teleportarea, antimatia, materia negativa samd…Multe dintre imposibilitatile descrise nu sunt contrazise de nicio lege a fizicii, deci singurul impediment in a le avea la indemana in viata de zi cu zi e inapoierea noastra tehnologica.

26-237389-Coperta_fata

Una peste alta, cartea asta e un pic “altfel” fata de ce am citit pana acum. Nu e una tehnica (am destule in viata mea de inginer), nu e nici Dostoevsky, dar nici SF. E cartea unui om pasionat de stiinta.

Ce frumos e ca ne-am intalnit cu paradoxul. Acum putem spera sa progresam. Niels Bohr

Un paradox este un adevar care sta in cap ca sa atraga atentia. Nicholas Falletta

dilemma – take 1

Posted: April 8, 2010 in technical
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Given the Create Session Request message from the target MME to the target SGW, in the S1-based handover (MME and SGW relocation) and Indirect Tunneling, the Bearer Context grouped IE within this message.

This Bearer Context has a S1-U F-TEID IE.

Should this IE be the IP of th _source eNB_ or the one of the _target_ eNB???