Trackballs were occasionally used in e-sports prior to the mainstreaming of optical mice in the early 2000s because they were more reliable than ball mice, but now they are extremely rare because optical mice offer superior speed and precision.

Trackballs are generally either thumb-operated, with a ball about an inch in diameter or smaller moved by one digit ( almost always the thumb ) and the buttons clicked by others, or finger-operated, with a ball over two inches in diameter operated by the middle fingers and the buttons by the thumb and little finger.

Trackballs are sometimes used instead of joysticks, especially in games from the early 1980s, spinners are used to control horizontally the action on screen, such as Arkanoid and Pong.

Trackballs remain in use in pub golf machines ( such as Golden Tee ) to simulate swinging the club.

Trackballs have also been regarded as excellent complements to analog joysticks, as pioneered by the Assassin 3D 1996 trackball with joystick pass-through capability.

Trackballs can be used whilst browsing a laptop in bed, or wirelessly from an armchair to a PC playing a movie.

The spirit of this group was that we were -- and are -- living in a world doomed to eternal punishment, but that God through Jesus Christ has provided a way of escape for those who confess their sins and accept salvation.

Evidence that other sources of financing are unavailable must be provided.

The agencies of government are now billed for the actual cost of services provided to each passenger car rather than the prior uniform charge for all cars.

and ( C ) to finance, for not more than three years beyond the end of said period, such activities as are required to correlate, coordinate, and round out the results of studies and research undertaken pursuant to this Act: Provided, That funds available in any one year for research and development may, subject to the approval of the Secretary of State to assure that such activities are consistent with the foreign policy objectives of the United States, be expended in cooperation with public or private agencies in foreign countries in the development of processes useful to the program in the United States: And provided further, That every such contract or agreement made with any public or private agency in a foreign country shall contain provisions effective to insure that the results or information developed in connection therewith shall be available without cost to the United States for the use of the United States throughout the world and for the use of the general public within the United States.

A blow to this phase of the Central's operations would have serious economic consequences not only to the railroad itself, but to the 40,000 people per day who are provided with efficient, reasonably priced transportation in and out of the city.

Because administration of the forest highway system is a responsibility of the Secretary of Commerce with maintenance provided by the States and counties, this Development Program for the National Forests does not include estimates of the funds needed to maintain the forest highway system nor to construct the additions to it that are needed.

Basic long-line communications in Alaska are now provided through Federal facilities operated by the Army, Air Force, and Federal Aviation Agency.

Extensive facilities for group performance are provided by maintaining, under skilled direction, the Choir, the Orchestra, the Band, the Glee Club, and smaller ensembles of wind and string players.

International Touring Documents are usually provided with the car as are road maps and touring data.

The information provided by the electron paramagnetic effects is then discussed, and finally the nuclear effects are interpreted in terms of various motional-modified models of the Af bond in Af.

Courses are provided mainly for post high school day programs ; ;

Remarks may appear to the right of the last parameter on each card provided they are separated from the operand by at least two blank spaces.

Merchant has found that the same basic relationships which describe the geometry and force systems in the case of the cutting mechanism can also be applied to the discontinuous chip formation provided the proper values of instantaneous shear angle and instantaneous chip thickness or cross-sectional area are used.

Sets of weights are provided so that the load can be selected in the range of 1/2 to 4 pounds.

If you are considering a part-time farm where the water must be provided by a well, find out if there is a good well on the farm or the probable cost of having one drilled.

The general Protestant conviction is that motives, rather than methods, form the primary moral issue, provided the methods are limited to the prevention of conception ''.

The ideal storage temperature for long periods is about fifty-five degrees, with an allowable range of five degrees above or below this, provided there are no sudden or frequent changes.

The higher price supports provided by the new legislation, together with rising prices for farm products, are pushing up farm income, making it possible for farmers to afford the new machinery.

In this session the persons seeking membership are provided information concerning the work of the denomination as well as the program and activities of the local church.

Texts and translations are provided.

There are large gaps in the fossil record but the discovery of a proto-frog from the Early Permian in Texas in 2008 provided a missing link with many of the characteristics of modern frogs.

Applets are used to provide interactive features to web applications that cannot be provided by HTML alone.

On ‑ board communications are provided by public address systems and aircraft intercoms.

such capacities are impressive evidence pointing to a conception of the human being which does not appear in the accounts of biologists and organic evolutionists ; ;

Piddington and Minnett explained their observations by pointing out that rocklike materials which are likely to make up the surface of the moon would be partially transparent to radio waves, although opaque to infrared radiation.

Another effect is that people would like altruism to be due to a personality characteristic rather than due to overt reputational concerns and simply pointing out that there are reputational benefits of an action may actually reduce them.

More advanced methods of locating objects in the sky include telescope mounts with setting circles, which assist with pointing telescopes to positions in the sky that are known to contain objects of interest, and GOTO telescopes, which are fully automated telescopes that are capable of locating objects on demand ( having first been calibrated ).

Adorning the CD artwork are two-headed arrows wrapped back pointing at each other, and underneath the CD are two worm-like creatures face to face forming a circle.

Whorf argued that paying attention to how other physical phenomena are described in the study of linguistics could make valuable contributions to science by pointing out the ways in which certain assumptions about reality are implicit in the structure of language itself, and how language guides the attention of speakers towards certain phenomena in the world which risk becoming overemphasized while leaving other phenomena at risk of being overlooked.

Modern variants of the Batavian founding myth are made more credible by pointing out that the Batavians were only part of the ancestry of the Dutch people, together with the Frisians, Franks and Saxons, and by tracing patterns of DNA.

In the following chemical equation with arrows pointing both ways to indicate equilibrium, A and B are reactant chemical species, S and T are product species, and α, β, σ, and τ are the stoichiometric coefficients of the respective reactants and products:

The flowers are dark pink, with very distinct reflexed petals, leaving the style and stamens fully exposed and pointing forward.

Scholarly debate over the interpretation of these passages has focused on placing them in proper historical context, for instance pointing out that Sodom's sins are historically interpreted as being other than homosexuality, and on the translation of rare or unusual words in the passages in question.

Since we are assuming circular motion, let r ( t ) = R · u < sub > r </ sub >, where R is a constant ( the radius of the circle ) and u < sub > r </ sub > is the unit vector pointing from the origin to the point mass.

Both alembics and retorts are forms of glassware with long necks pointing to the side at a downward angle which acted as air-cooled condensers to condense the distillate and let it drip downward for collection.

Tails are used for some single-line kite designs to keep the kite's nose pointing into the wind.

Some of the letters are represented by iconic shapes, such as b, c, d, k, and, in British Sign Language and the BANZSL group of languages, the vowels a, e, i, o, and u, are represented by pointing to the fingertips.

Handlers are therefore taught to minimize the harmful effects of such a motion by keeping their finger off the trigger until the muzzle is pointing at the target and the handler wishes to discharge the firearm.

If the tops of the rock units within the folds remain pointing upwards, they are called anticlines and synclines, respectively.

Some of these methods are denying the in-group ’ s harmful actions, denying responsibility, claiming actions by the in-group were just, focusing on positive aspects caused by the harmful action, and pointing out positive things in other areas to counterbalance the harm.

Usually ' internalism ' refers to the belief that an explanation can be given of the given subject by pointing to things which are internal to the person or their mind who is considering them.