When the burner is regulated to produce a hot, blue flame it can be nearly invisible against some backgrounds.

When the cannon was fired through the touchhole, turbulence from the initial surface combustion caused the rest of the powder to be rapidly exposed to the flame.

When placed over a flame, lithium compounds give off a striking crimson color, but when it burns strongly the flame becomes a brilliant silver.

When he brings the wax towards a flame, these characteristics change completely.

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 burned, sulfur melts to a blood-red liquid and emits a blue flame that is best observed in the dark.

When spoken near a candle flame, the flame will flicker more after the words par, tar, and car are articulated, compared with spar, star, and scar.

When they asked what was in the box, they were told, " That's the eternal flame.

When the liquid fuel reaches the flame, it vaporizes and combusts.

When placed over the flame the oxygen supply is cut off.

When he died he became the centre of a cult which kept a flame burning on his altar.

When the treads of the escalator flashed over, the size of the fire increased exponentially and a sustained jet of flame was discharged from the escalator tunnel into the model ticket hall.

When ignited with a flame rather than detonated with a primary explosive, C4 just burns, so American soldiers during the Vietnam War era would sometimes use small amounts of it as a fuel for heating rations.

When the lamp is lit, the kerosene that the wick has absorbed burns and produces a clear, bright, yellow flame.

When the lamp is lit, the central draft tube supplies air to the flame spreader that spreads out the flame into a ring of fire and allows the lamp to burn cleanly.

When unburned fuel / air mixture beyond the boundary of the flame front is subjected to a combination of heat and pressure for a certain duration ( beyond the delay period of the fuel used ), detonation may occur.

When heated by the operating flame the mantle glows incandescently.

When flame velocities are low, the effect of a deflagration is to release heat.

When the flame reaches the topmost pyrotechnic star, the star is ignited.

When working with the pitch, make sure you are working with gloves, safety glasses and good ventilation and as always, when working with any type of open flame, make sure there is an appropriate fire extinquisher close by.

When disruptive change has penetrated to the third level of social order, the process of disruption rapidly reaches a point of no return.

When a person has thoughtlessly or deliberately caused us pain or hardship it is not always easy to say, `` Just forget it ''.

When a city has arranged things like this you cannot easily change them.

When mold has more than one design cavity, make individual paper patterns.

When the resin has hardened, mix up another batch with a pigment added if you wish.

When the whole bottom has hardened, use a disk sander to feather the edges of the cloth at the keel line and near the spray rail.

When we look at countries like Iran, Iraq, Pakistan, and Burma, where substantial progress has been made in creating a minimum supply of modern men and of social overhead capital, and where institutions of centralized government exist, we find a second category of countries with a different set of problems and hence different priorities for policy.

When the information cell for Af has been determined, it is saved as a representation of Af.

) When the complete file has been read, the grammatical descriptions for all text forms found in the dictionary have been stored in the W-region ; ;

When a word represents a larger construction of which it is the only expressed part, it normally has more stress than it would have in fully expressed construction.

When ity is added, real clearly has two syllables.

When dealing with the actual relation of philosophy to the sociology of knowledge, or better the role of philosophy in assisting research on the social sources of ideas, one has to become necessarily selective.

When all has been said, however, the big branch store remains a major break with history in the development of American retailing.

When all of the rinse water has passed from the reservoir to the tubs the main drains are lowered to permit complete draining of the tubs.

When this water level has been reached, inject steam into the wheel until the temperature reaches that shown in Column B of Table 2.

When this water level has been reached, inject steam until the temperature is that shown in Column Aj.

When this water level has been reached inject steam until the temperature is that shown in Column Aj.

When the policy has been chosen, the state of the product can be obtained from the state of the feed by repeated application of the transformation ( 1 ) ; ;

When Af has been found it may be transferred into the storage location of Af and the whole calculation repeated.

When they do that my wife has to drive me to work in the big car.

When that fear has been removed by faith in Jesus Christ, when we know that He is our Savior, that He has paid our debt with His blood, that He has met the demands of God's justice and thus has turned His wrath away -- when we know that, we have peace with God in our hearts ; ;

" When the tone poem moves into the blues, " our American friend ... has succumbed to a spasm of homesickness.