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"On observe de plus en plus de signaux annonçant une récession mondiale", commente James Dailey de TEAM Financial Managers. "Ce n'était pas quelque chose de prévu par les marchés il y a encore environ une semaine."

le", commente James Dailey de TEAM Financial Managers. "Ce n'était pas quelque chose de prévu par les marchés il y a encore environ une semaine." Aux valeurs, Pharmasset a bondi de plus de 84,5% après l'annonce de son rachat par Gilead pour quelque 11 milliards de dollars (8,2 milliards d'euros). Ce dernier, qui cherche ainsi à se renforcer dans les traitements de l'hépatite C, a chuté de 9%.   Suite... Voir l’article sur la page simple Page précédente 1 | 2 Page suivante     Article suivant : Paris et les Bourses européennes chutent lourdement en clôture     D'autres nouvelles Echec annoncé de la mission sur les déficits américains Paris et les Bourses européennes chutent lourdement en clôture Les valeurs suivies à la clôture de la Bourse de Paris Mise en garde de Moody's sur le Aaa français Plus... fr.reuters.com:  Aide et Informat

GE’s Brand New 100W Equivalent LED Bulb Illuminates the Future of Lighting May 7, 2012 Engineers at GE’s NELA Park in East Cleveland, Ohio, have spent a century building better light bulbs. When NELA opened in 1911, it became the world’s first industrial park, a distinction that earned it a place on the National Register of Historic Places. But now a new kind of history is taking place at NELA, the kind that will soon dispatch the incandescent light bulb down the same road traveled by the LP and the VCR. “This is an evolution,” says Glenn Kuenzler, a lighting engineer at NELA. He and his team of researchers are making sure that the GE bulb, whose legacy stretches back to Edison, is fit to survive.

Researchers produce first complete computer model of an organism July 20, 2012 By Max McClure

(Phys.org) -- In a breakthrough effort for computational biology, the world's first complete computer model of an organism has been completed, Stanford researchers reported in the journal Cell.

team led by Stanford bioengineering Professor Markus Covert used data from more than 900 scientific papers to account for every molecular interaction that takes place in the life cycle of Mycoplasma genitalium – the world's smallest free-living bacterium.

Physicists confirm surprisingly small proton radius

In the experiment described in the newly published Science article, the energy shift was determined for another transition. This leads to a new measurement of the electric charge radius of the proton. Its value of 0.84087(39) femtometres (1 fm = 0.000 000 000 000 001 metre) is in good agreement with the one published in 2010, but 1.7 times as precise.

Planck Units

Planck units are largely based upon three fundamental units, h, G, and c.

The gravitational constant is given the symbol "G".   It is a measured value used in the force equation for gravity (see below). F = Gm1m2 / r2 The m units are masses of two bodies which are separated by a distance r.   By rearranging the equation, we have G (see below). G = Fr2 / m1m2 The gravitational force, F, was measured between two masses to arrive at G.   At various times, the laboratory equipment and methods were improved to arrive at more accurate values for G.   The physics texts were not usually updated for the new values because (1) the changes were not great enough to justify the added expense to the texts, and (2) the changes were happening frequently enough to make each text obsolete before it arrived in the hands of students.   Consequently, there are numerous variations of G to be found, but the differences between them are slight. There are many systems of weights and measures used in physics.   Fundamental constants such as G often have two values according to the measuring system used.   When two such units are mixed to arrive at subsidiary units such as the planck length, the result is a completely erroneous value along with units of measure which do not apply.   Consequently, it is important to convert the various units of the fundamental constants used to the same system of units.   In may instances of late, this has not been done. Finally, there is human error involved in copying from an old text to create a new next.   This means that it is wise to check various texts to see if they all agree (they usually don't), and decide what is correct and what is not correct.   For G, the following was discovered.

The Truth About Twitter

Twitter is a media platform, not a social n

work.

In everyday life and in classical physics, events are ordered in time: a cause can only influence an effect in its future not in its past. As a simple example, imagine a person, Alice, walking into a room and finding there a piece of paper. After reading what is written on the paper Alice erases the message and leaves her own message on the piece of paper. Another person, Bob, walks into the same room at some other time and does the same: he reads, erases and re-writes some message on the paper. If Bob enters the room after Alice, he will be able to read what she wrote; however Alice will not have a chance to know Bob's message. In this case, Alice's writing is the "cause" and what Bob reads the "effect". Each time the two repeat the procedure, only one will be able to read what the other wrote. Even if they don't have watches and don't know who enters the room first, they can deduce it by what they write and read on the paper. For example, Alice might write "Alice was here today", such that if Bob reads the message, he will know that he came to the room after her.

" C'est tellement simple qu'un enfant de 5 ans le comprendrait. Qu'on aille me chercher un enfant de 5 ans !" Groucho Marx

Regulatory Changes by the Federal Energy Regulatory Commission

FERC Orders 888 and 889

On April 24, 1996, FERC issued Orders 888 and 889, which encourage wholesale competition.  The primary objective of these orders is the elimination of monopoly power over the transmission of electricity.  To achieve this objective, FERC requires all public utilities that own, control, or operate facilities used for transmitting electric energy in interstate commerce to: file open access nondiscriminatory transmission tariffs containing minimum terms and conditions, take transmission service (including ancillary services) for their own new wholesale sales and purchases of electricity under open access tariffs, develop and maintain a same-time information system that will give existing and potential  users the same access to transmission information that the public utility enjoys, and separate the transmission from generating and marketing functions and communications.