Video: The race to Absolute Zero

This is the story of Dewar and Kamerlingh Onnes race to liquify gases.  The ultimate challenge was helium.  Dewar gavce up after hydrogen as he found it difficult to get helium and had all along gone light on equipment whilst Onnes used a more industrial approach,.  Onnes received the Nobel prize for doing this. 

The unfortunate thing is that later superconductivity and superfluidity was found by Onnes.  Had Dewar persisted he might have found superconductivity and got the prize anyway!

The ultimate acheivement detailed is the creation of an Bose Einstein condensate in 1995.

If you like science / physics this one is for you!

How to get paid to write open source software

— Video Went AWOL —

Val Henson describes her career in open source

  1.  Linux system programmers are in short supply
  2.  If you are vaguely competent and get some experience you become employed for life
  3.  Not all Linux programmers are idealists.  Now days it is a for profit motivation.
  4.  her pay profile progressed very well. Started at 150,000 per year in 1999 and doubled after 10ish years.
  5.  Telecommuting seems to be the end of the evolutionary progression
  6.  She travels all over the world to visit other programmers. 
  7. She thinks San Diego has the best weather in the world.  ( she obviously has not considered South America in that calculation )
  8. What would Val do?  If you will not get fired then why not do it ? 
  9. She knows developers who never leave the house
  10. Hours are flexible
  11. its not a 9-5 job.  She does not know anyone who does not care.  Hard to make it on 40 hours per week.
  12. Side effect is you only end up dealing with positive motivated people
  13. Open source is an enabling technology – good way to think about how and why a company would hire a person to help with open source from their point of view
  14. You have to be able to admit you do not know something.  ( duh!)   Linuxchix
  15. There are some famously rude people in the Linux community
  16. Careful with email!
  17. Some people get into open source by working on patches but much better to get a framework such as a job that gets you in contact with other people doing open source.
  18. Should be able to fairly quickly get into a position where you can telecommute 

Val Henson on LinkedIn

Vals blog

Luka-Sem Resposta-Without Reply

Letras de Luka

Tire um pouco o peso                            Take a little the weight
Das minhas costas                                of my back
Falta pouco tempo                                  lack little time
Prá eu ir embora                                     For I to go leave
E eu nem sei se vou voltar…                 And I in the know if you going to return

Trilhe seu caminho                                Track your road
Faça suas apostas                                 Make your bets
Mas não me deixe aqui                          But do not leave me here
Sozinha sem respostas                        Alone without replies
Que eu nem sei                                      That I in the know
Onde encontrar…                                    Where to find

Eu sou apenas                                       I am only
Uma criança indefesa                           A child indefensible
Você parece                                            You appear
Uma caixinha de surpresas                To be a boxette of surprises
Se for assim meu bem                         If for thus to be my good ( honey good)
Adeus!…                                                   God

Não tô te pedindo prá ficar                   Not going to ask you to stay
E não vou te encher                               And not going to fill you
De promessas                                       of promises
Eu te quero bem                                     I want you well
Mas no amor eu tenho pressa…         But in love I have press ( need / pressure )

Vá se acostumando                              Going to accustomate you
Com a minha ausência                        With my absence
Faça logo as pazes                               Make your peace soon
Com a sua consciência                       With your conscience
E veja se você errou…                           And see your erred

Trilhe seu caminho                               Track your road
Faça suas apostas                               Make your bets
Mas não me deixe aqui                        But not me leave here
Buscando as respostas                      Searching the responses
Que você nunca encontrou…               That you never encountered

Eu sou apenas                                       I am only
Uma criança indefesa                           A child indefensible
Você parece                                            You appear
Uma caixinha de surpresas                A boxette of surprises
Se for assim meu bem                         If were thus my good
Adeus!…                                                   God

Não tô te pedindo prá ficar                   Not going to ask you to stay
E não vou te encher                               and not going to fill you
De promessas                                       of promises
Eu te quero bem                                     I want you well
Mas no amor eu tenho pressa            But in the love I am pressed 

Eu sou apenas                      
Uma criança indefesa, ahan!
Você parece
Uma caixinha de surpresas
Se for assim meu bem
Adeus!…

Não tô te pedindo prá ficar
E não vou te encher
De promessas
Eu te quero bem
Mas no amor eu tenho pressa…(2x)
Eu te quero bem
Mas no amor eu tenho pressa…

I do not believe in you-Eu nao acredito em voce – Vinny

Eu abro todas as janelas da casa
Eu deixo o sol iluminar o caminho
Eu deixo a lua fazer sombra na sala
E o vento bagunçar meu destino

Eu vejo o teu fantasma dentro do quarto
Acendo a luz pra que você vá embora
Te exorciso enquanto eu calço os sapatos
Vou sair e te tirar da memória

Eu não acredito em você hei hei hei no way no way
Eu não acredito em você hei hei hei no way no way

Eu perco o sono mas não perco o juízo
Eu me mudei pro andar mais alto do mundo
Eu posso ver toda cidade lá fora
Aqui dentro eu mudo sempre de assunto

Eu pendurei os quadros pela parede
Nada que lembre o teu sorriso absurdo
Mas quando eu vejo o teu olhar nos meus sonhos
Eu me encontro e me esqueço de tudo

Eu não acredito em você hei hei hei no way no way (4x)

Quantum Mechanics Entanglement and Spooky Action at a distance

Very interesting and experimental approach to entanglement and Bells inequality.
    

Interesting points of note in the video

  • pop bottle bottom glasses on 70's guy!
  • Eigenvalues of a quantum mechanical solution are what you can observe.  You never observe solutions that are combinations of eigenvalues.
  • StarTrek looking test apparatus mock up.  Scotty would have felt at home fixing this bugger!
  • Einstein did not like ghostly action at a distance.  EPR
  • Assume quantum theory is incomplete: Look for a hidden variable. Photon pairs are emitted with a shared equal hidden parameter.
  • Theories using hidden variables have been created that preserve locality and realism
  • Experiments that only test perfect correlations do not force us to choose between quantum explanation and hidden variable method
  • John Bell was the first person to show how to bring the two theories into conflict so they could be tested
  • Testing perfect correlations are tantamount to looking at one sock and seeing it is blue and concluding the sock on the other foot is blue
  • Imperfect correlations: set the target polarizers at unequal angles.
  • Alain Aspect and company tested Bell's Theorem
  • Tunable lasers were required for this test setup

More …….