When the ascent stage ignited, small explosive charges severed the ascent stage from the descent stage and cables connecting the two were severed by a guillotine-like mechanism.

When, in 882, Engelschalk II rebelled against the Margrave of Pannonia, Aribo, and ignited the so-called Wilhelminer War, Arnulf supported him and even accepted his and his brother's homage.

When the weapons were removed from the mound, this movement disturbed the bowl beneath them where the butt ends of the staffs were, which in turn ignited the fuses.

When Flaherty returned to Toronto with 70, 000 feet of film, the nitrate film stock was ignited in a fire started from his cigarette, in his editing room.

When tobacco is burned, oils from adjoining not yet ignited particles vaporize and condense into the existing cake on the walls of the bowl and shank.

When ignited, preheated thermite can burn almost instantaneously, releasing light and heat energy at a much higher rate than normal and causing burns and eye damage at what would normally be a reasonably safe distance.

When the apex of the vertical flight occurred after a coasting flight of about 247 seconds, a radio signal from the ground ignited the eleven-rocket cluster of the second stage, separating the tub from the instrument section.

When the friction bar is sharply pulled out, by means of a lanyard, the composition is ignited and sets fire to the powder in the long tube ; the flash is conveyed through the vent and ignites the gun charge.

When the second stage was ignited telemetry showed abnormal burning and the stage failed due to a malfunction in the oxidizer system.

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 MDF was ignited, the resulting gas pressure between the inner and outer seal would cause the bolts to fail in tension.

When the trigger was pulled, the spring pushed the firing pin forwards into the bomb, which ignited the propellant in the bomb and launched it out of the trough and into the air.

When the Sun ignited in the solar nebula, hydrogen, helium and other volatile materials were evaporated in the area near the Sun.

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

When the details of the camp emerged in the South African media, it ignited a firestorm of protest that quickly consumed much of the upper administrative levels of South African rugby.

When the two NSDs are ignited at each hold down, the hold-down bolt travels downward because of the release of tension in the bolt ( pretensioned before launch ), NSD gas pressure and gravity.

When the fuel is ignited from the bottom, hot gases are expelled downwards, propelling the rocket upwards.

When the treads of the escalator flashed over, the fire grew dramatically and ignited most of the ticket hall.

When it ignited, the resulting explosion set fire to the surrounding buildings.

When first shown in exhibition, those photos ignited a lively debate that has been revived with a recent exhibition of Danuser ’ s photographs of Zumthor ’ s most famous work, the spa at Therme Vals.

When the motor ignited, the pressure inside the casing built up until the damaged casing could not hold in the pressure of the burning fuel and exploded, destroying the launch vehicle.

When ignited, the mixture smolders at about, producing sodium chloride, iron oxide, and about 6. 5 man-hours of oxygen per kilogram of the mixture.

When the bombs were ignited, the valley became an inferno.

When " tripped ", it locks up solidly ( typically in a few to tens of milliseconds ) and rotates the driven member just one full turn.

When the trajectory r ( t ) rotates an amount dθ, u < sub > ρ </ sub >, which points in the same direction as r ( t ), also rotates by dθ.

When protecting the body, the boxer rotates the hips and lets incoming punches " roll " off the guard.

When descending a tree headfirst, the red panda rotates its ankle to control its descent, one of the few climbing species to do so.

When a body rotates while subject to tidal forces, internal friction results in the gradual dissipation of its rotational kinetic energy as heat.

When an electric current is applied, the galvanometer's indicator rotates and compresses a small spring.

When an object rotates about its axis, the motion cannot simply be analyzed as a particle, since in circular motion it undergoes a changing velocity and acceleration at any time ( t ).

When reading, the magnetized material rotates past the heads, the ferrite core concentrates the field, and a current is generated in the coil.

When the shutter release is pressed, a light-blocking shield lifts and the shutter disc rotates a full turn exposing the film through its open sector ; when the pressure is released the light-blocking shield returns to its position behind the lens, and the spring motor advances the film and recocks the shutter.

When the solenoid is activated, the core is drawn into the coil, and the disk rotates on the ball bearings in the grooves as it moves towards the coil body.

When power is removed, a spring on the disk rotates it back to its starting position, also pulling the core out of the coil.

When a disc is selected to be played, the carousel rotates so that the disc can be picked up by a pickup mechanism and placed in CD playback unit.

When a fluid rotates and viscous forces are balanced by the Coriolis effect ( rather than convective inertia ), an Ekman layer forms.

When it is turned on, it rotates and blows the soot off the tubes and out through the stack.

When an archerfish selects its prey, it rotates its eye so that the image of the prey falls on a particular portion of the eye in the ventral temporal periphery of the retina and its lips just break the surface, squirting a jet of water at its victim.

When reading data from a conventional electromechanical hard disk drive, the disk controller must first position the head, relatively slowly, to the track where a given fragment resides, and then wait while the disk platter rotates until the fragment reaches the head.

When the wheel rotates and stops with its arms in the vertical position it is possible for boats to enter and exit the lower caisson when the gates are open without flooding the docking-pit.

When acting alone it rotates to the opposite side ( contralaterally ) and slightly ( laterally ) flexes to the same side.

When the head rotates about any axis ( horizontal, vertical, or torsional ) distant visual images are stabilized by rotating the eyes about the same axis, but in the opposite direction.

When a patient is positioned for a radiographic image attempting to demonstrate Coxa Vara it is important that the technician insures that the patient medially rotates the foot 15 ° on the ipsilateral side ( same side ) being depicted in the film.

When a molecule rotates, the centrifugal force pulls the atoms apart.

When the disk rotates through one complete revolution about a vertical axis, the wire unavoidably acquires a full twist.

When the board rotates more than 90 degrees and then returns to its original position over the course of the slide it is called a pendulum.

When the center of mass is placed in geostationary orbit then the cable rotates once per day with the Earth, and is usually referred to as a space elevator.