When he plotted the spectral types of these stars against their absolute magnitude, he found that dwarf stars followed a distinct relationship.

When ordered by temperature and when duplicate classes were removed, the spectral types of stars followed, in order of decreasing temperature with colors ranging from blue to red, the sequence O, B, A, F, G, K and M. ( A popular mnemonic for memorizing this sequence of stellar classes is " Oh Be A Fine Girl / Guy, Kiss Me ".

In the special case that M is a normal matrix, which by definition must be square, the spectral theorem says that it can be unitarily diagonalized using a basis of eigenvectors, so that it can be written for a unitary matrix U and a diagonal matrix D. When M is also positive semi-definite, the decomposition is also a singular value decomposition.

When using a film whose spectral sensitivity is not a good match to that of the light meter, for example orthochromatic black-and-white or infrared film, the meter may require special filters and re-calibration to match the sensitivity of the film.

When applying spectral methods to time-dependent PDEs, the solution is typically written as a sum of basis functions with time-dependent coefficients ; substituting this in the PDE yields a system of ODEs in the coefficients which can be solved using any numerical method for ODEs.

When not being woven into the Pattern, or fighting in spectral form, she and all the other heroes of the Wheel reside in Tel ' aran ' rhiod, and it was there that she first made her acquaintance with Elayne Trakand and Nynaeve al ' Meara.

When the absolute magnitude for a group of stars is plotted against the spectral classification of the star, in a Hertzsprung-Russell diagram, evolutionary patterns are found that relate to the mass, age and composition of the star.

When the properties of that exhaust are measured, such as its thermal energy, spectral analysis of its light ( i. e., spectrometry ), etc., those properties become a new signature in the MASINT database.

When this is done for radiation incident on a surface, it is called spectral irradiance, and has SI units W / m < sup > 3 </ sup >, or commonly W · m < sup >− 2 </ sup >· nm < sup >− 1 </ sup >.

When astronomers developed the spectral classification of the carbon stars, they had considerable difficulty when trying to correlate the spectra to the stars ' effective temperatures.

When the others split up and search the basement for Bobby, despite Dennis's protests, the psychic manages to use a pair of spectral viewers-which allow the wearer to see into the supernatural realm-to convince Maggie of the ghosts by using them to show her the Hammer in its cell.

When viewed in the frequency domain, it is evident that the matched filter applies the greatest weighting to spectral components that have the greatest signal-to-noise ratio.

When properly adjusted it can alter the spectral phase φ ( ω ) of the input pulse so that the output pulse is a bandwidth-limited pulse with the shortest possible duration.

When killed, enemies leave behind souls that replenish Raziel's health, which automatically decreases in the material realm and increases in the spectral.

When later quantum theory essentially also recovered Bohr's formula for energy of spectral lines, Moseley's law became incorporated into the full quantum mechanical view of the atom, including the role of the single 1s electron which remains in the K shell of all atoms after another K electron is ejected, according to the Schroedinger equation prediction.

When used in multiple-laser systems, intrapulse QCL spectroscopy offers broadband spectral coverage that can potentially be used to identify and quantify complex heavy molecules such as those in toxic chemicals, explosives, and drugs.

When he discovered that the original Desiree, Glynis Johns, was able to sing ( she had a " small, silvery voice ") but could not " sustain a phrase ", he devised the song " Send in the Clowns " for her in a way that would work around her vocal weakness, e. g., by ending lines with consonants that made for a short cut-off.

When the lines joined, Labienus ordered the cavalry to attack ; as expected they successfully pushed back Caesar's cavalry until his hidden fourth line joined in, using their pila to thrust at Pompey's cavalry and turn them to flight.

When she is unsuccessful, she takes revenge on her rival by turning Scylla into a monster ( lines 1-74 ).

When he was a 16-year-old pupil at St Paul's School in London, the lines about Humphry Davy came into his head during a science class.

When the surviving bacteria exit the stomach and reach the small intestine, they need to propel themselves through the thick mucus that lines the small intestine to get to the intestinal walls, where they can thrive.

When a switch is pressed, it connects the corresponding x and y lines together.

When drawing hair, the lines of the sketch follow the direction of the hair growth.

When both the fronts and sides of a building are drawn, then the parallel lines forming a side converge at a second point along the horizon ( which may be off the drawing paper.

When finished entering lines, Ctrl-C will return to the edlin command prompt.

When Euripides's plays are sequenced in time, they also reveal that his outlook might have changed, providing a " spiritual biography " along these lines:

When calculating correlation functions instead of scattering amplitudes, there is no past and future and all the lines are internal.

When Watt returned to Britain, he began experiments along these lines with hopes of finding a commercially viable process.

When Zahir Shah took power in 1933 Kabul had the only 6 miles of rail in the country, few internal telegraph or phone lines and few roads.

When a data packet comes in one of the lines, the router reads the address information in the packet to determine its ultimate destination.

When it comes to transforming these observations into practice, Koolhaas mobilizes what he regards as the omnipotent forces of urbanism into unique design forms and connections organised along the lines of present day society.

When the critical section is longer than a few source code lines or involves lengthy looping, an embedded / real-time algorithm must resort to using mechanisms identical or similar to those available on general-purpose operating systems, such as semaphores and OS-supervised interprocess messaging.

When the Tsar took control of the army in the front lines during World War I, he left his wife in charge of Russia for he trusted only her.

When heavy, wet snow with a snow-water equivalent ( SWE ) ratio of between 6: 1 and 12: 1 ( in extreme cases, as heavy as 4: 1 ) and a weight in excess of 10 pounds per square foot (~ 50 kg / m < sup > 2 </ sup >) piles onto trees or electricity lines – particularly if the trees have full leaves or are not adapted to snow – significant damage may occur on a scale usually associated with hurricanes.

When the athlete executes the spin, the upper body is twisted hard to the right, so the imaginary lines created by the shoulders and hips are no longer parallel.

" When Estelle Reiner died at age 94 in 2008, The New York Times referred to her as the woman " who delivered one of the most memorably funny lines in movie history ".

" In a review for The New York Times, Caryn James called When Harry Met Sally ... an " often funny but amazingly hollow film " that " romanticized lives of intelligent, successful, neurotic New Yorkers "; James characterized it as " the sitcom version of a Woody Allen film, full of amusing lines and scenes, all infused with an uncomfortable sense of déjà vu ".

When the show returned in 1970, it was recorded the same way only in colour in PAL 576i ( using 625 lines ).

When learning positions for drill, an American football field may be divided into a 5-yard grid, with the yard lines serving as one set of guides.

When two traces run parallel, an electrical signal in one can be coupled into the other through electromagnetic induction by magnetic field lines from one linking the other ; this is called crosstalk.

When the positive integers are arrayed along the Ulam spiral, prime numbers, represented by dots, tend to collect along diagonal lines.