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 used offensively, a standard attack frequently employed the reverse or icepick grip, stabbing downward with the blade to increase thrust and penetrative force.

When close to a planet with a strong magnetosphere such as Earth or a gas giant, the magnetic sail could generate more thrust by interacting with the magnetosphere instead of the solar wind, and may therefore be more efficient.

When in space and no more thrust is provided, the missile enters free-flight.

When the way is free, thrust forward ; when the way is obstructed, stick ( cling ); if receiving greater force, yield or give way ; and when the opponent withdraws, retreats or lowers his defense – go forward.

When a thrust that has propagated along the lower detachment, known as the floor thrust, cuts up to the upper detachment, known as the roof thrust, it forms a ramp within the stronger layer.

When Piłsudski carried out a military thrust into Ukraine in 1920, he was met by a Red Army offensive that drove into Polish territory almost to Warsaw.

When, in 1598, Hideyoshi died without leaving a capable successor, the country was once again thrust into political turmoil, and this time it was Tokugawa Ieyasu who took advantage of the opportunity.

When thrust is required, a strong electric field is generated by the application of a high voltage difference between the emitter and the accelerator.

When he had completed his work, it was handed over to, nay rather thrust upon, me for emendation.

When an engine thrust or propulsive force is present, Newton's laws still apply, but Kepler's laws are invalidated.

When thrust is applied in a constant direction this simplifies to:

When a system expels mass in one direction, the force the expelled mass applies to the system is called thrust ; the force the system applies to the mass being expelled is of equal magnitude but opposite direction.

When fellow Republicans advised taking a less strident tone than he had years earlier, he answered: " When crime and criminals are thrust before us they are to be met by all the energies that God has given us by argument, scorn, sarcasm and denunciation.

When World War I began, Paulus's regiment was part of the thrust into France, and he saw action in the Vosges and around Arras in the autumn of 1914.

This may cause behavioural problems for the afflicted bird When a bird needs to reduce its speed during flight, it employs a ' reverse thrust ' action by extending its wing at the wrist joint and using the drag of its primaries as air brakes.

When held fixed in a gravitational field by, for example, applying a ground reaction force or an equivalent upward thrust, the reference frame for an accelerometer ( its own casing ) accelerates upwards with respect to a free-falling reference frame.

When a thrust chamber is swung by an attached actuator, the movement is referred to as " gimballed " or " gimballing ".

When McDivitt tried this, he found himself moving away and downward, as the retrograde thrust lowered his orbit, increasing his speed.

When they begin to explore the forbidden area, the trio are thrust into a dangerous adventure — one they can survive only if they can put aside their chronic rivalries and come to understand the lost race of Troodons, who have existed there in seclusion for centuries and have created their own warrior culture in a mix of chivalry and bushido.

When an aircraft is steered on the ground exclusively using the rudder, turning the plane requires that a substantial airflow be moving past the rudder, which can be generated either by the forward motion of the aircraft or by thrust provided by the engines.

When a susceptible insect ingests the transgenic crop cultivar expressing the Bt protein, it stops feeding and soon thereafter dies as a result of the Bt toxin binding to its gut wall.

When the orchestra stops playing ( which is often in the summer ), orchestral bassists have to find other work, either as a teacher or coach, or in another group.

When the actuator reaches the desired position, the two signals ( incoming and outgoing ) cancel each other out and the actuator stops moving ( completing a feedback loop ).

When a defender successfully stops an attacking player ( who loses the ball over a line ), the play is stopped and restarted by the attacking team from the spot of the infraction or on the nine-meter line.

When it reaches the towns of Saugatuck and Douglas it stops and enters Lake Michigan.

When a sear is in place, it effectively stops the bolt at some point in its range of motion.

When the music player suddenly stops the music, everyone must race to sit down in one of the chairs.

When León became the first city in Nicaragua to fall to the Sandinistas, he responded with aerial bombardment, famously ordering the air force to " bomb everything that moves until it stops moving.

When nuclear fusion in the core of the star stops, the star collapses.

A Time review of The Hour of Decision noted his international popularity as a polemicist, observing that " When Oswald Spengler speaks, many a Western Worldling stops to listen ".

When the key is released, a damper stops the string's vibration.

When trans-Saharan trade intensified, they developed departure and arrival centers with slave depots and intermediary secure caravan stops.

When the distant scanning station detects ALE activity, it stops scanning and stays on that channel until it can confirm whether or not the call is for it.

When the surrounding gas and dust envelope disperses and accretion process stops, the star is considered a pre – main sequence star ( PMS star ).

When the fever stops, and the hypothalamic setting is set lower ; the reverse of these processes ( vasodilation, end of shivering and nonshivering heat production ) and sweating are used to cool the body to the new, lower setting.

When the water pressure within the xylem reaches extreme levels due to low water input from the roots ( if, for example, the soil is dry ), then the gases come out of solution and form a bubble – an embolism forms, which will spread quickly to other adjacent cells, unless bordered pits are present ( these have a plug-like structure called a torus, that seals off the opening between adjacent cells and stops the embolism from spreading ).

When the person stops drinking, the body tries to make up for lost time by producing more glutamine than it needs.

( In order not to interpret +++ which may be a part of data as the escape sequence the sender stops communication for one second before and after the +++). When the modem encounters this in a stream of data, it switches from its normal mode of operation which simply sends any characters to the phone, to a command mode in which the following data is assumed to be a part of the command language.

When one spins and stops suddenly, fluid in the inner ear continues to rotate causing a sense of continued spinning while one's visual system no longer detects motion.

When Krusty makes a tribute to Bob at the last minute, however, Bob has a change of heart and stops Bart from fulfilling his mission.

When the heartbeat stops, a person is suffering clinical death – by definition, but consciousness is not lost until 15 – 20 seconds later.

When Jack Williams, a former New York cop who has lost an arm in World War II saving his friend Mike Hammer's life, falls in love with Myrna Devlin, a young heroin addict whom he stops from jumping off a bridge to commit suicide, he asks Manning to admit her to her clinic for psychotherapy.

When the suspension in a car is fully compressed, it reaches the bump stops, small blocks of rubber that catch the suspension arms at the end of their range of movement.

When she shrinks from him, he stops the car.

When he stops rolling, Porky lands on the ground, and he " toot-toots " like a train, before running away.