Asteroid Attack

Written by K.A.Cassimally

Continued from page 1

But we have to stop these threatening asteroids from hitting Earth so as to ‘save’ ourselves.

In some movies, we see a missile being launched straight towards a big asteroid. The latter then explodes andrepparttar film usually ends. But in reality, it’s not that simple. Did you ever think what might happen torepparttar 127670 biggest remains of that big asteroid? Maybe it would go and enter Earth’s atmosphere or maybe not. If it does pass this first test, maybe it will cause big damages or maybe not. You will agree with me that man cannot take such a risk.

An idea suggests that if a small asteroid is indeed intending to hit Earth, an engine is to be anchored in it. This engine is simply going to pushrepparttar 127671 asteroid away.

Yet another strategy to putrepparttar 127672 asteroid out ofrepparttar 127673 way is to attach solar sails to it. The ‘gentle’ pressure of sunlight onrepparttar 127674 sails will deflectrepparttar 127675 asteroid away from Earth.

Luckily an asteroidrepparttar 127676 size of a football field manages to hitrepparttar 127677 Earth only every thousand years or so but mind you I do not know when such an asteroid did hit Earth last.

K.A.Cassimally is the editor in chief of Astronomy Journal, a small publication of the RCPL Astronomy Club, Mauritius. Here is the new website(to be launched in February 2004):

Chromatography - Hayrapetyan's Effect

Written by Aram Hayrapetyan

Continued from page 1

Asrepparttar peak height is related with carrier-gas rate, wide peaks eluted later will be much sharper. This allows a better identification of low concentrations (increase in analysis accuracy);

Attainment of symmetrical peaks also in case of nonlinear adsorption isotherm, asrepparttar 127669 rear ofrepparttar 127670 band is at a higher pressure thanrepparttar 127671 front;

The substantial enrichment,repparttar 127672 increase in concentration ofrepparttar 127673 component inrepparttar 127674 center ofrepparttar 127675 band is conditioned byrepparttar 127676 compression ofrepparttar 127677 band both as a consequence ofrepparttar 127678 moving pressure gradient compared withrepparttar 127679 initial sorption pressure, and as a consequence ofrepparttar 127680 presence ofrepparttar 127681 moving gradient ofrepparttar 127682 optimal linear speed accompanyingrepparttar 127683 band of components being analyzed fromrepparttar 127684 inlet torepparttar 127685 outlet ofrepparttar 127686 chromatographic column duringrepparttar 127687 while analysis cycle (increase inrepparttar 127688 efficiency ofrepparttar 127689 separation ofrepparttar 127690 components);

The pressure ofrepparttar 127691 gas inrepparttar 127692 column can be changed almost instantaneously and equilibrium can be attained in a very short time. Pressure re-regulation excludesrepparttar 127693 necessity of long "periods of cooling" ofrepparttar 127694 column (express - analysis, economy of electricity), while temperature increase programming may either cause evaporation ofrepparttar 127695 stationary phase, which "flies out" ofrepparttar 127696 column, or destroy it chemically to various molecules, which also will soon come out byrepparttar 127697 carrier-gas. The repetitive cycles of heating and cooling may cause compression of solid support particles during expansion, followed by destruction (crumbling) during compression, which leads to a progressive change of permeability. The maximum possible effectivity ofrepparttar 127698 chromatographic column - Hayrapetyan's Effect

The maximum possible effectivity ofrepparttar 127699 chromatographic column - Hayrapetyan's E ff e c t

Allrepparttar 127700 rest - XX century.

P. S.

C h r o m a b a r o g r a p h y A new step of effectivity, A first - hand new technology.

Towardrepparttar 127701 new century with a new technology.

ARAM HAYRAPETYAN 47/6 Vardanants Street, Vanadzor 377201, Republic of Armenia, E-mail: Web-site: HTTP://CHROMATOGRAPHY.HOTBOX.RU PUBLICATIONS AND ARTICLES: 57 published works, including 21 certificates for individual authorship from USSR and Russia, Germany, Czechoslovakia and Bulgaria. PERSONAL DATES: Born 17 May 1945, married, two children. Daughter born 1972, married. Son born 1977.

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