My sincere congratulations goes to Professor Zewail There are many more like him
that are emerging now.
Habib.
Madiba Saidy wrote:
> Hi Folks,
>
> Congrats Prof. Zewail!!!!!!! Prof. Zewail of Caltech won this year's nobel
> prize for Chemistry. He is a fellow African (from Egypt), did his
> undergraduate studies at Alexandria University in Egypt and graduate work
> at U. of Penn.
>
> I personally met Prof. Zewail four years ago when he visited the Chemistry
> Dept. at UBC as a guest speaker in the prestigious Mcdowell Chemical
> Physics lecture series....hence, not surpised by his latest
> accomplishment.
>
> Prof. Zewail, you are a role model!!!!! Keep it up!!!!!!!!!!!!!!!
>
> Cheers,
> Madiba Saidy, Ph.D; MCIC
> ---------------------------
>
> By MATS KARLSSON
> .c The Associated Press
>
> STOCKHOLM, Sweden (AP) - A U.S. scientist won the Nobel Prize for chemistry
> today for capturing ultrafast snapshots of atomic reactions. Two Dutch
> researchers won the physics prize for refining the theory predicting the
> existence and behavior of some of the smallest particles in the universe.
>
> Ahmed H. Zewail, 53, of the California Institute of Technology was honored
> for pioneering a revolution in chemistry by using the rapid-fire laser
> flashes that illuminate the motion of atoms in a molecule as they occur, the
> Royal Swedish Academy of Sciences said.
>
> The academy said Zewail's work in the late 1980s led to the birth of
> femtochemistry, the use of high-speed cameras to monitor chemical reactions
> at a scale of femtoseconds. A femtosecond is one-quadrillionth of a second,
> or one-thousandth of a millionth of a millionth second. The technique works
> regardless of whether the material is solid, liquid or gas.
>
> ``We have reached the end of the road. No chemical reactions take place
> faster than this,'' the academy said in an announcement. ``We can now see the
> movements of individual atoms as we imagine them. They are no longer
> invisible.''
>
> Zewail, who holds U.S. and Egyptian citizenship, has held the Linus Pauling
> chair of chemical physics at Caltech since 1990.
>
> Zewail has described femtochemistry as ``taking an x-ray image of the
> molecule itself. You are seeing the individual arrangements and structures.''
>
> Earlier today, the Academy announced that Gerardus 't Hooft and Martinus J.G.
> Veltman won the physics prize for creating more precise calculations for
> predicting and confirming the subatomic particles' existence and behavior.
>
> In the early moments of the universe, when conditions were much hotter,
> physicists believe, electromagnetism and a weak force were one in the same.
> But the forces diverged as the universe cooled and expanded into its current
> state.
>
> Today, scientists use large machines known as accelerators to try to recreate
> those hot, primordial conditions for a split second to determine whether
> subatomic particles behave in the ways predicted by theory, or even if the
> particles exist at all.
>
> The research by Veltman and 't Hooft provided a roadmap for experimental
> physicists using accelerators to find the particles and shed light on how
> these particles behave and interact.
>
> ``This is the entire framework we (particle physicists) use when calculating.
> We'll get finite answers. Earlier calculations only resulted in nonsense,''
> said Lars Brink, a professor of Chalmers University of Technology Institute
> and a member of the academy.
>
> Veltman, speaking on Dutch television, joked of his struggles trying to
> explain his work.
>
> ``It is a difficult and abstract subject and something that I have never been
> able to explain to my wife and children,'' Veltman said.
>
> Their calculations were vital in calculating the mass of the top quark, which
> was observed for the first time in 1995 at the Fermilab in the United States.
>
> Yet-to-be-confirmed is the much-heavier Higgs particle. In Switzerland, an
> accelerator known as the Large Hadron Collider at CERN is being developed to
> test for the Higgs particle, among others.
>
> Veltman, of Bilthoven, is professor emeritus at the University of Michigan
> and former professor at the University of Utrecht; 't Hooft has been a
> professor of physics at the University of Utrecht since 1977. Their
> association began in 1969 when 't Hooft studied with Veltman in Utrecht.
>
> U.S.-based scientists won or shared the chemistry prize in nine of the
> previous 10 years, and the physics prize in eight of the previous 10 years.
>
> The literature prize was awarded Thursday to German novelist Guenter Grass.
> The medicine prize was awarded Monday to Dr. Guenter Blobel, 63, a German
> native and U.S. citizen, who discovered how proteins find their rightful
> places in cells.
>
> The economics prize winner is to be announced Wednesday in Stockholm and the
> peace prize on Friday in Oslo, Norway.
>
> The prizes, worth $960,000, are presented on Dec. 10, the anniversary of the
> death of Alfred Nobel, the Swedish industrialist and inventor of dynamite who
> established the prizes.
>
> AP-NY-10-12-99 1230EDT
>
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