Rubidium metal is easily vaporized and has a convenient spectral absorption range, making it a frequent target for laser manipulation of atoms.

Rubidium has also been reported to ignite spontaneously in air.

Rubidium has a very low ionization energy of only 406 kJ / mol.

Rubidium ( Rb ) has 32 isotopes, with naturally occurring rubidium being composed of just two isotopes ; < sup > 85 </ sup > Rb ( 72. 2 %) and the radioactive < sup > 87 </ sup > Rb ( 27. 8 %).

Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85. 4678.

It is used to cool low density gasses down to the Doppler cooling limit, which for Rubidium 85 is around 150 microkelvin.

Rubidium ( ) is a chemical element with the symbol Rb and atomic number 37.

:: Hydrogen ( Z = 1 ), Lithium ( Z = 3 ), Sodium ( Z = 11 ), Potassium ( Z = 19 ), Rubidium ( Z = 37 ), Caesium ( Z = 55 ), Francium ( Z = 87 ).

Rubidium and potassium show a very similar violet color in the flame test, which makes spectroscopy methods necessary to distinguish the two elements.

Rubidium is not known to be necessary for any living organisms.

Rubidium is a very soft, ductile, silvery-white metal.

Rubidium substitutes for potassium within the lattice of minerals at a rate proportional to its concentration within the melt.

SC cut crystals are most advantageous where temperature control at their temperature of zero temperature coefficient ( turnover ) is possible, under these circumstances an overall stability performance from premium units can approach the stability of Rubidium frequency standards.

* Rubidium is discovered by Robert Bunsen and Gustav Kirchhoff, in Heidelberg, Germany, in the mineral lepidolite through the use of their spectroscope.

During a seminar at the UMCP Department of Chemistry and Biochemistry titled Coherent Atoms in Optical Lattices Phillips stated, " Rubidium is God's gift to Bose-Einstein condensates.

Group velocities as low as 8 m / s were measured in a warm thermal Rubidium vapor.

This optimizes the linear velocity of the glass master, giving precise pit lengths to eliminate time jitters, controlled by an extremely precise Rubidium clock.

In fact it has caused us to give serious thought to moving our residence south, because it is not easy for the most objective Southerner to sit calmly by when his host is telling a roomful of people that the only way to deal with Southerners who oppose integration is to send in troops and shoot the bastards down.

`` Now that Bruno Walter is virtually in retirement and my dear friend Dimitri Mitropoulos is no longer with us, I am probably the only one -- with the possible exception of Leonard Bernstein -- who has this special affinity for and champions the works of Bruckner and Mahler ''.

recently only Keith Wheeler's novel, Peaceable Lane, has openly faced the problem.

We have staved off a war and, since our behavior has involved all these elements, we can only keep adding to our ritual without daring to abandon any part of it, since we have not the slightest notion which parts are effective.

Well, after everybody has followed the New England pattern of segregating one's children into private schools, only the poor folks are left.

It will be noted that point f has seven nearest neighbors, h and e have six, and p has only one, while the remaining points have intermediate numbers.

Ideally speaking, it should be allowed to operate only where the public has a great stake in the continuity of supply or services, and where the actions of a single proprietor are secondary to the needs of society.

Ortega's hope that modern psychology might yet bring forth a last flowering of the novel has only been partially fulfilled.

The myth of the Southern plantation has had only a tangential relation with actuality, as Francis Pendleton Gaines showed forty years ago, and I suspect it has had a far narrower acceptance as something real than has generally been supposed.

It may be that in this comment he has broken from the conventional pattern more violently than in any other regard, for the treatment in his books is far removed from even the genial irony of Ellen Glasgow, who was the only important novelist before him to challenge the conventional picture of planter society.

She has shared her husband's greatness, but only within the confines of their home ; ;

In his effort to stir the public from its lethargy, Steele goes so far as to list Catholic atrocities of the sort to be expected in the event of a Stuart Restoration, and, with rousing rhetoric, he asserts that the only preservation from these `` Terrours '' is to be found in the laws he has so tediously cited.

It is, however, a disarming disguise, or perhaps a shield, for not only has Mercer proved himself to be one of the few great lyricists over the years, but also one who can function remarkably under pressure.

Arlen is one of the few ( possibly the only ) composer Mercer has been able to work with so closely, for they held their meetings in Arlen's study.

The observer of television or other products for a mass audience has only a permit to be, like the models he sees, even more like everybody else.

His neighbors celebrated his return, even if it was only temporary, and Morgan was especially gratified by the quaint expression of an elderly friend, Isaac Lane, who told him, `` A man that has so often left all that is dear to him, as thou hast, to serve thy country, must create a sympathetic feeling in every patriotic heart ''.

Thus science is the savior of mankind, and in this respect Childhood's End only blueprints in greater detail the vision of the future which, though not always so directly stated, has nevertheless been present in the minds of most science-fiction writers.

Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.

Malraux, to be sure, does not abandon the world of violence, combat and sudden death which has become his hallmark as a creative artist, and which is the only world, apparently, in which his imagination can flame into life.

These new poems have only a few direct references to jazz and jazz musicians, but they show changes in Patchen's approach to his poetry, for he has tried to enter into and understand the emotional attitude of the jazz musician.

These are, of course, the same people whose support he has only now rejected to seek the independent vote.

Mr. Truman has only to recall the `` hopeless '' campaign of 1948 to remember what a loyal partisan he was and the first experience of Mr. Kennedy with Congress would have been sadder than it was had not Mr. Sam been there.

I worked for my Uncle ( an Uncle by marriage so you will not think this has a mild undercurrent of incest ) who ran one of those antique shops in New Orleans' Vieux Carre, the old French Quarter.

But in our case -- and neither my wife nor I have extreme views on integration, nor are we given to emotional outbursts -- the situation has ruined one or two valued friendships and come close to wrecking several more.

In what has aptly been called a `` constitutional revolution '', the basic nature of government was transformed from one essentially negative in nature ( the `` night-watchman state '' ) to one with affirmative duties to perform.

Historically, however, the concept is one that has been of marked benefit to the people of the Western civilizational group.

But it is more than irony: one of the main reasons why nationalism is no longer a tenable concept is because it has spread throughout the planet.

Madison once remarked: `` My life has been so much a public one '', a comment which fits the careers of the other six.

Even the great god Faulkner, the South's one probable contender for literary immortality, has little concerned himself with these matters ; ;

An approach that has appealed to some choreographers is reminiscent of Charles Olson's statement of the process of projective verse: `` one perception must immediately and directly lead to a further perception ''.

There was also a lesson, one that has served ever since to keep Americans, in their conflicts with one another, from turning from the ballot to the bullet.

He is a widower, his three children are dead, he has no one left on earth ; ;

And it is precisely in this poorer economic class that one finds, and has always found, the most racial friction.

This sentence would have most of the characteristics of a question, but it has some of the characteristics of a statement because the questioner has conveyed the fact that he has no faith in his own timepiece or the one attached to his car.

This is an unsolved problem which probably has never been seriously investigated, although one frequently hears the comment that we have insufficient specialists of the kind who can compete with the Germans or Swiss, for example, in precision machinery and mathematics, or the Finns in geochemistry.

A perceptive journalist, Sam Lubell, has phrased it in the title of one of his books as the revolt of the moderates.

Research into several cultures has proven her position to be a mistaken one.