One of the simplest examples of a category is that of groupoid, defined as a category whose arrows or morphisms are all invertible.

One can then evaluate the probability amplitude at the photon's final point ; next, one can integrate over all of these arrows ( see vector sum ), and square the length of the result to obtain the probability that this photon will reflect off of the mirror in the pertinent fashion.

One of the enemy's flaming arrows landed in the crib of the infant, Richard Mentor Johnson, but it was quickly doused by Johnson's sister Betsy.

One of the known and most commonly used ways to create a Stand is to pierce oneself with arrows created from a mysterious meteorite, which were retroactively introduced in Part 4.

Three standard versions of the permissive signal exist: One version is a horizontal bar with five lights-the green and yellow arrows are located between the standard green and yellow lights.

One of the biggest items sold to tourists are hunting kits-bows and arrows.

One such task is called the Eriksen flanker task and consists of an arrow pointing to the left or right, which is flanked by two distractor arrows creating either compatible (<<<<<) or incompatible (<<<>>) trials.

One subroutine may have multiple distinct entry points or exit flows ( see coroutine ); if so, these are shown as labeled ' wells ' in the rectangle, and control arrows connect to these ' wells '.

One must continue in this fashion, following the arrows at the intersection, until the end is reached.

One is then left with a discrete category containing only the two objects X and Y, and no arrows between them.

One day, Karna was practising his skills with bow and arrows near the ashram of Sage Parashurama.

One who has eradicated his passions, is like a person that although under a torrent of arrows, either shatters them or returns them into the hearts of his enemies — just as the Psalm states: " Their sword shall enter their own heart, and their bows shall be broken " ( Psalm 37: 15 ).

One day, a dog barked while he was focused upon practice, and without looking, the prince fired arrows that sealed up the dog's mouth while not causing any harm.

One quatrain runs: " It was not with his sword he kept it / Neither with arrows or bow.

One of the arrows eventually hits the casket and a moment later the casket, completely unexpectedly, explodes in a fiery explosion and completely demolishes the boat, body, and casket in a splintery mess.

One can invert the direction of arrows in the definitions above to arrive at corresponding concepts of co-cartesian morphisms, co-fibred categories and split co-fibred categories ( or co-split categories ).

One of the battling entities also shoots energy " arrows " at the Q, after he attempts to enter the wormhole from Star Trek: Deep Space Nine only to be blocked by the Prophets, and many Bajorans interpret this as a sign from the Prophets-though the Kai of the time understands that it is not.

One of the most important discoveries relating to current was made accidentally by Hans Christian Ørsted in 1820, when, while preparing a lecture, he witnessed the current in a wire disturbing the needle of a magnetic compass.

One, in Warwickshire, advised him to take tobacco ( which Fox disliked ) and sing psalms ; another, in Coventry, lost his temper when Fox accidentally stood on a flower in his garden ; a third suggested bloodletting.

One example is the Siberian sturgeon ( Acipenser baerii ) which accidentally escaped from a fish farm into the Gironde Estuary ( Southwest France ) following a severe storm in December 1999 ( 5, 000 individual fish escaped into the estuary which had never hosted this species before ).

One day at work, she accidentally walked into the wrong room where auditions were being held.

One woman, Natalya Lopukhina, accidentally wore the same item as the Empress and was lashed across the face for her offense.

One notable example is " Nandi ", a manta ray that was accidentally caught in shark nets off Durban, South Africa in 2007.

One day, when the Department of the Navy was trying to reach the Lockheed management for the P-80 project, the call was accidentally transferred to Culver ’ s desk.

One such was the discovery, first recorded in 1784, of iron cement made from sal ammoniac, or ammonium chloride and iron filings, apparently discovered when Murdoch observed that these 2 components had accidentally mixed in his tool bag and formed a solid mass.

One such story is in Action Comics # 156 ( May 1951 ), in which Lois accidentally gains those powers through an invention of Superman's arch-foe, Lex Luthor.

One example is overlay, in which an adult accidentally rolls over an infant during co-sleeping, an accident that often goes unnoticed and is mistakenly thought to be sudden infant death syndrome.

One day, while alone in his dorm, he accidentally calls the Goddess Technical Help Line and a beautiful goddess named Belldandy materializes in his room.

One of Rupert's notes proffering his affections accidentally fell into the possession of Charles Louis ' wife Charlotte, who believed it was written to her.

One possible explanation is that in 1985, a Mute Records technician is believed to have accidentally written " erasure " on a demo tape for " Who Needs Love Like That " submitted by Clarke and Bell.

One theory for the scale of the disaster was that workers had accidentally left open internal fire doors which might have contained the fire and subsequent blast.

One of Khrunov's lines became tangled and he accidentally closed the tumbler of his suit ventilator.

One nest was accidentally destroyed by machinery in July, but seven young fledged from the two remaining nests towards the end of August.

One of the earliest known bloopers is attributed to 1930s radio broadcaster Harry Von Zell, who accidentally referred to then-US President Herbert Hoover as " Hoobert Heever " during an introduction.

One, a British Airways aircraft carrying 240 passengers, accidentally entered the ash cloud during night time in June 1982 150 km downwind of the volcano.

One of these, " Aveugle par Ac-Sedan ", a French pun on " accidentally blind " and " Bungler at Sedan ", put its creator, Émile Cohl, in jail on October 11, 1879, making him instantly famous.

One day he accidentally erased a file.

One day, she accidentally broke a precious porcelain jar.

One night, she accidentally hits a homeless man with her car.

One of the replaced frames was tilted ; the other was accidentally redone upside-down.

One source near Afon fach Blaen y Cae, a tributary of the Dwyfach, tells of a shepherd accidentally disturbing a ring of rushes where fairies are preparing to dance ; they capture him and hold him captive, and he even marries one of them.

One son accidentally drowned in the river St. Maurice in September, 1859.