Besides doing a single song, `` When The Sun Comes Out '', they worked on the ambitious American-Negro Suite, for voices and piano, as well as songs for films.

When this happens, the carbon atoms are said to be in solution, or mixed with the iron, forming a single, homogeneous, crystalline phase called austenite.

When more electrons are added to a single atom, the additional electrons tend to more evenly fill in a volume of space around the nucleus so that the resulting collection ( sometimes termed the atom ’ s “ electron cloud ” ) tends toward a generally spherical zone of probability describing where the atom ’ s electrons will be found.

When a backplane is used with a plug-in single board computer ( SBC ) or system host board ( SHB ), the combination provides the same functionality as a motherboard, providing processing power, memory, I / O and slots for plug-in cards.

When the processors and their interconnect are all implemented on a single silicon chip, the technology is known as a multi-core microprocessor.

When telegraph messages were the state of the art in rapid long distance communication, elaborate systems of commercial codes that encoded complete phrases into single words ( commonly five-letter groups ) were developed, so that telegraphers became conversant with such " words " as BYOXO (" Are you trying to weasel out of our deal?

When these principles are written down into a single collection or set of legal documents, those documents may be said to comprise a written constitution.

When Haydn and Mozart began composing, symphonies were played as single movements — before, between, or as interludes within other works — and many of them lasted only ten or twelve minutes ; instrumental groups had varying standards of playing, and the continuo was a central part of music-making.

When Sun Yat-sen was asked by one of the leading revolutionary generals to what he ascribed the success, he said, " To Christianity more than to any other single cause.

In the 1996 Rage Against The Machine single People of the Sun, lyricist Zack De La Rocha rhymes " When the fifth sun sets get back reclaimed, The spirit of Cuauhtémoc alive an untamed ".

When " Too Drunk to Fuck " came out in May 1981, the song caused much controversy in the UK as the BBC feared the single would reach the Top 30 ; this would require a mention of the song on Top of the Pops.

" When Robert B. Anderson, Eisenhower's first Secretary of the Navy argued that the Navy must recognize the " customs and usages prevailing in certain geographic areas of our country which the Navy had no part in creating ", Eisenhower overruled him: " We have not taken and we shall not take a single backward step.

When traffic deltas are low, a single call establishment message will have access to the full 64Kbs ( allowing for overheads ).

When this is complete, a single nick on the leading strand and several nicks on the lagging strand can be found.

When natural resource management is applied to whole ecosystems, rather than single species, it is termed ecosystem management.

When the Court renders its decision, it will generally do so in a single majority opinion and one or more dissenting opinions.

When the governing of the Empire became too cumbersome for a single Emperor, the empire was divided by the emperor Diocletian into the Western and Eastern empires.

When using a single stage press, cases are loaded in batches, one step for each cartridge per batch at a time.

When ionized hydrogen is written as " H < sup >+</ sup >" as in the solvation of classical acids such as hydrochloric acid, the hydronium ion, H < sub > 3 </ sub > O < sup >+</ sup >, is meant, not a literal ionized single hydrogen atom.

When two strings tuned to be the same pitch, or to an octave apart, are plucked simultaneously by a single keystroke, the note is louder and richer than one produced by a single string.

When James Braid first described hypnotism, he did not use the term " suggestion " but referred instead to the act of focusing the conscious mind of the subject upon a single dominant idea.

Jamiroquai's first single, " When You Gonna Learn ", was released in 1992 on the Acid Jazz label.

When " Picture " was released it introduced Kid Rock to a wider audience, and was ultimately the most successful single on the album.

When an electron in an excited molecule or atom descends to a lower energy level, it emits a photon of light equal to the energy difference.

When the emission of the photon is immediate, this phenomenon is called fluorescence, a type of photoluminescence.

When the emission of the photon is delayed, the phenomenon is called phosphorescence.

When the photon is emitted at a distance equal to the Schwarzschild radius, the redshift will be infinitely large.

When the photon is emitted at an infinitely large distance, there is no redshift.

When such an electron decays without external influence, emitting a photon, that is called " spontaneous emission ".

When an electron meets a hole, it falls into a lower energy level, and releases energy in the form of a photon.

When this happens due to the presence of the electromagnetic field from a photon, a photon is released in the same phase and direction as the " stimulating " photon, and is called stimulated emission.

When it was found in 1900 by Max Planck that the energy of waves could be described as consisting of small packets or " quanta ", Albert Einstein further developed this idea to show that an electromagnetic wave such as light could be described as a particle ( later called the photon ) with a discrete quantum of energy that was dependent on its frequency.

When an X-ray photon collides with an atom, the atom may absorb the energy of the photon and boost an electron to a higher orbital level or if the photon is very energetic, it may knock an electron from the atom altogether, causing the atom to ionize.

When sodium or its compounds are introduced into a flame, they turn it yellow, because the excited 3s electrons of sodium emit a photon when they fall from 3p to 3s ; the wavelength of this photon corresponds to the D line at 589. 3 nm.

When such an electron decays without external influence, emitting a photon, that is called " spontaneous emission ".

When an atom is probed by an external mechanism, such as a photon or a beam of electrons with energies in the range of 2 keV to 50 keV, a core state electron can be removed leaving behind a hole.

When these are absent, however, optical detection is said to be " photon noise limited " as only the shot noise ( also known as " quantum noise " or " photon noise " in this context ) remains.

When a photon of sufficient energy strikes the diode, it excites an electron, thereby creating a free electron ( and a positively charged electron hole ).

When two nanowires acting as photon waveguides cross each other the juncture acts as a quantum dot.

When an electron and a hole recombine, it is possible for a photon to be emitted.

When the molecule relaxes it emits a photon and it returns to a different rotational or vibrational state.