It has only been generated by oxidation of stibine ( SbH < sub > 3 </ sub >) at − 90 ° C.

Using two anchors set approximately 45 ° apart, or wider angles up to 90 °, from the bow is a strong mooring for facing into strong winds.

Aberration is usually larger than a planet's light-time correction except when the planet is near quadrature ( 90 ° from the Sun ), where aberration drops to zero because then the Earth is directly approaching or receding from the planet.

In fact, a 90 ° twist requires an energy approximately equal to half the strength of a pi bond.

The sample is spotted at one corner of a square plate, developed, air-dried, then rotated by 90 ° and usually redeveloped in a second solvent system.

Tendrils are present at 90 ° to the leaf petioles at nodes.

Summer temperatures can exceed 90 ° F ( 32 ° C ), and winter temperatures can drop below 0 ° F (− 18 ° C ).

The same basic engine block can be used with different crankshafts, however, to alter the firing order ; for instance, the 90 ° V6 engine configuration, in older days sometimes derived by using six cylinders of a V8 engine with what is basically a shortened version of the V8 crankshaft, produces an engine with an inherent pulsation in the power flow due to the " missing " two cylinders.

While production V8 engines use four crank throws spaced 90 ° apart, high-performance V8 engines often use a " flat " crankshaft with throws spaced 180 ° apart.

Any units of angular measure can be used for declination, but it is customarily measured in the degrees ( ° ), minutes ( ' ), and seconds ( " ) of sexagesimal measure, with 90 ° equivalent to circle.

Declinations with magnitudes greater than 90 ° do not occur, because the poles are the northernmost and southernmost points of the celestial sphere.

* north celestial pole has a declination of + 90 °

* south celestial pole has a declination of − 90 °

As seen from locations in the Earth's Northern Hemisphere, celestial objects with declinations greater than 90 ° − ( where = observer's latitude ) appear to circle daily around the celestial pole without dipping below the horizon, and are therefore called circumpolar stars.

At the north point, it is 90 ° − ||, and at the south point ,-90 ° + ||.

The equinoxes are also the only times when the terminator is inclined 90 ° to the Earth's Equator ( while at solstices, that inclination reaches its minimum of 66. 5 °, corresponding to 90 ° minus Earth's axial tilt ).

To make a strike at the ball with a left to right swing the player must present the flat of the ' face ' of the stick to the ball by ' reversing ' the stick head, i. e. by turning the handle through approximately 180 °( while a reverse edge hit would turn the stick head through approximately 90 ° from the position of an upright forehand stoke with the ' face ' of the stick head.

Years later, in the 1980s, with liberals in charge of the congress, they passed a resolution to turn the whole chamber in the Elliptic Room 90 degrees to put the main mural on the side and commissioned Alejandro Obregon to paint a non-partisan mural in the surrealist style.

An octant is a similar device with a shorter scale ( turn, or 45 °), whereas a quintant ( turn, or 72 °) and a quadrant ( turn, or 90 °) have longer scales.

Strength will be improved if the first turn is 90 ° to the timber hitch and if care is taken to lay the rope turns parallel with no crossings.

Movement between the house and street required a 90 ° turn through a small antechamber.

* At a white square, turn 90 ° right, flip the color of the square, move forward one unit

* At a black square, turn 90 ° left, flip the color of the square, move forward one unit

As of the 2010 United States Census, the borough population was 5, 494, reflecting an increase of 278 (+ 5. 3 %) from the 5, 216 counted in the 2000 Census, which had in turn increased by 90 (+ 1. 8 %) from the 5, 126 counted in the 1990 Census.

New York State Route 146 is an east-west highway through most of the center of Clifton Park until it takes a 90 degree turn southward, passing east of the hamlet of Rexford and then crossing the Rexford bridge into the Town of Niskayuna in Schenectady County.

The turtle moves with commands that are relative to its own position, such as " move forward 10 spaces " and " turn left 90 degrees ".

** If there is one unoccupied square before or behind opposing pieces then jumps multiple times over opposing pieces in a single turn forward or backward can and must be made, making angles of 90 degrees.

The rider turns the bike 90 degrees to the left from the original direction of travel and proceeds along with the line of cars when the red light turns green, completing the left turn.

By the turn of the century, the criteria had grown and third rate carried more than 60 guns, with second rates having between 90 and 98 guns, while first rates had 100 guns or more, and fourth rates between 48 and 60 guns.

When three steps are used to turn a 90 ° corner, the middle step is called a kite winder as a kite-shaped quadrilateral.

The hustle line dance is an example of a four-wall dance because in the final figure they turn 90 degrees to the left to face a new wall.

Between 1929 and 1932 ship production declined by 90 %, and this in turn affected all the supply industries such as steel and coal.

Both streets turn 90 degrees to form a rectangle.

Leah had been at home with friends and had not been dancing, yet consumed about 7 litres ( 12 pints ) of water in less than 90 minutes, resulting in water intoxication and hyponatremia, which in turn led to serious swelling of the brain, irreparably damaging it.

If the strip was opened out now, unbending each fold to become a 90 degree turn, the turn sequence would be RRL i. e. the second iteration of the Heighway dragon.

* If we turn example B clockwise by 90 °, around the centre of one of the squares, again we obtain exactly the same pattern.

This is especially true at the corners of the LOD: the amount of the right turn is effectively 3 / 4 of a full turn, and the amount of the left turn is effectively 5 / 4, because the LOD changes its direction by 90 degrees to the left ( CCW ).

Robson had faced his familiar fight against injury once again in that 1989 – 90 campaign, restricted to 20 appearances out of 38 in the league, as United finished 13th – their lowest finish since relegation in 1974.

When the FAA restricted the twins to 60 minutes in 1953, ICAO limited it to 90 minutes at all-engine speed.

In 2004, in an effort to keep Underground Atlanta from closing a second time, the city passed an ordinance allowing bars in the complex to remain open and serve drinks until 4: 00 -- a last call 90 minutes later than the rest of the city had recently been restricted to.

Robinson, O. F., The Sources of Roman Law: Problems and Methods for Ancient Historians ; Routledge, ISBN 0-415-08994-8 ; pp. 80, 89, ( 90 ( restricted ); as pub.

$ 90 million from tuition, $ 45 million from the state ) and $ 210 million from restricted funds ( about $ 80 million ), auxiliary funds ($ 46 million ), designated funds ($ 44 million ), and plant funds ($ 37 million ).

File names were restricted to the " 8. 3 " format, but the edit facilities enabled users to add summaries up to 90 characters long, which they could display from the file menu.

Because The Movie Network operates a singular feed and its license is restricted to broadcast solely in a geographical area covered by the Eastern, Atlantic, and Newfoundland time zones, the difference in local airtimes for a particular movie or program between two locations will be at most 90 minutes.

For instance, there were 14 points for a win, and the first innings was restricted to 90 overs, which can support good attacking play as a team approaches the 90 over mark.

The restricted driver visibility of the class was a factor in the disastrous Lewisham rail crash on 4 December 1957 outside St John's railway station in Lewisham, in which 90 people were killed and 173 injured.

In 1958 she appeared in the film Merry Andrew as Letitia Fairchild, however in the 1960s, her screen appearances were restricted to guest spots on television shows such as The Lucy Show, Car 54, Where Are You ?, Adventures in Paradise, and Playhouse 90.