Early in the 20th century, the Arlington Time Signal broadcast this service to wireless receivers.

Early radio receivers, called crystal radios, used a " cat's whisker " of fine wire pressing on a crystal of galena ( lead sulfide ) to serve as a point-contact rectifier or " crystal detector ".

Early 8VSB DTV ( digital television ) receivers often had difficulty receiving a signal in urban environments.

Early systems, like the UK's Chain Home, consisted of large transmitters and separate receivers, and the signals from both were sent to an oscilloscope.

Early books on extension often describe a model of communication that involved the transmission of messages from " senders " to " receivers ".

** Early color television receivers also used a complex dynamic convergence system, which was driven by both the horizontal and vertical output stages.

Early releases of AutoCAD used primitive entities — lines, polylines, circles, arcs, and text — to construct more complex objects.

Early computers used a variety of 4-bit binary coded decimal ( BCD ) representations and the 6-bit codes for printable graphic patterns common in the U. S. Army ( Fieldata ) and Navy.

Early modern writers, such as Polydore Vergil and Matthew Parker, the Elizabethan Archbishop of Canterbury, also utilised the Historia, and his works were used by both Protestant and Catholic sides in the Wars of Religion.

Early computers used one of two addressing methods to access the system memory ; binary ( base 2 )

Early descriptions of the production process and glazing techniques used for bricks can be found in the Song Dynasty carpenter's manual Yingzao Fashi, published in 1103 by the government official Li Jie, who was put in charge of overseeing public works for the central government's construction agency.

Blythe House in West Kensington is used by the Museum for off-site storage of small and medium-sized artefacts, and Franks House in East London is used for storage and work on the " Early Prehistory "-Palaeolithic and Mesolithic-and some other collections.

Early Bayesian inference, which used uniform priors following Laplace's principle of insufficient reason, was called " inverse probability " ( because it infers backwards from observations to parameters, or from effects to causes ).

Skeat “… in at least three cases and probably in all, in the form of codices " and he theorized that this form of notebook was invented in Rome and then “… must have spread rapidly to the Near East …” In his discussion of one of the earliest pagan parchment codices to survive from Oxyrhynchus in Egypt, Eric Turner seems to challenge Skeat ’ s notion when stating “… its mere existence is evidence that this book form had a prehistory ” and that “ early experiments with this book form may well have taken place outside of Egypt .” Early codices of parchment or papyrus appear to have been widely used as personal notebooks, for instance in recording copies of letters sent ( Cicero Fam.

Early computer buses were parallel electrical wires with multiple connections, but the term is now used for any physical arrangement that provides the same logical functionality as a parallel electrical bus.

Early models used a drive mechanism made by Alps Electric, distinguishable by its push-down drive door.

Early light cavalry ( like the auxiliaries of the Roman army ) were typically used to scout and skirmish, to cut down retreating infantry, and for defeating enemy missile troops.

Early Eastern Zhou texts, such as the Spring and Autumn Annals, provide better understanding of the calendars used in the Zhou dynasty.

Crannogs were used as dwellings over five millennia from the European Neolithic Period, to as late as the 17th / early 18th century although in Scotland, convincing evidence for Early and Middle Bronze Age or Norse Period use is not currently present in the archaeological record.

Early crochet hooks ranged from primitive bent needles in a cork handle, used by poor Irish lace workers, to expensively crafted silver, brass, steel, ivory and bone hooks set into a variety of handles, some of which were better designed to show off a lady's hands than they were to work with thread.

Although recognized previously by others, the mathematical expression for the Coriolis force appeared in an 1835 paper by French scientist Gaspard-Gustave Coriolis, in connection with the theory of water wheels, Early in the 20th century, the term Coriolis force began to be used in connection with meteorology.

Early Buddhist and Jaina sources used-to refer to a people of south India ( presumably Tamil );-was a southern non-Aryan country ; -,, and-were used as variants to designate a country in the south (, Kādambarī, Daśakumāracarita -, fourth to seventh centuries CE ) ( 1989: 134 – 138 ).

( Early modern philosophers like Locke used the corresponding English terms ' nominal essence ' and ' real essence ').

Early cartridge shotguns also used the SxS action, because they kept the exposed hammers of the earlier muzzle-loading shotguns they evolved from.

In Anglo-Saxon England, as prescribed in Leechdoms, Wortcunning, and Starcraft of Early England ( also called Læceboc ) ( many of whose recipes were borrowed from Greek medicinal texts ), dill was used in many traditional medicines, including medicines against jaundice, headache, boils, lack of appetite, stomach problems, nausea, liver problems, and much more.

Early color motion picture processes such as Kinemacolor and Prizmacolor used travelogues to promote the new color process.

Early commercial digital synthesizers used simple hard-wired digital circuitry to implement techniques such as additive synthesis and FM synthesis, becoming commercially available in the late 1970s.

Other uses include the Early Cyrillic titlo ( ◌҃ ) and the Hebrew gershayim ( ״ ), which, respectively, mark abbreviations or acronyms, and Greek diacritical marks, which showed that letters of the alphabet were being used as numerals.

Early storage devices such as delay lines, punched cards, paper tape, magnetic tape, and magnetic drums were used instead.

Early Christians in Britain and Ireland also used an 84-year cycle.

Early estimates for the cost to deliver payload to low earth orbit were as low as $ 118 per pound ($ 260 / kg ) of payload ($ 635 / pound in 2011 dollars ), based on marginal or incremental launch costs, and assuming a 65, 000 pound ( 30 000 kg ) payload capacity and 50 launches per year.

Early commercial and professional radio services relied exclusively on long wave, low frequencies and ground-wave propagation.

Early in the match, Arsenal midfielder Robert Pirès played a low pass from the left flank to Bergkamp in the edge of the opponent area with his back to goal.

Early long-distance services used surface wave propagation at very low frequencies, which are attenuated along the path.

Early complications include shock, infection, systemic inflammatory response syndrome, low blood calcium, high blood glucose, and dehydration.

In addition GPISD operates the William F. " Bill " Becker Early Childhood Development Center, a preschool program for low income families, in Galena Park.

The Galena Park Independent School District operates the William F. " Bill " Becker Early Childhood Development Center, a preschool program for low income families, in Galena Park.

Early poppet-valve systems required decarbonization at very low mileages.

From the Early Cretaceous and into Late Cretaceous times the Harz was uplifted in a single block by tectonic movements and, particularly during the Tertiary period, the younger overlying strata were eroded and the underlying base rock left standing as low mountains.

Early primary research has shown that in low / moderate suspicion of PE, a normal D-dimer level ( shown in a blood test ) is enough to exclude the possibility of thrombotic PE.

Early motherhood can affect the psychosocial development of the infant. The children of teen mothers are more likely to be born prematurity and low birth weight predisposing them to many other lifelong conditions.

Early network interface controllers were commonly implemented on expansion cards that plugged into a computer bus ; the low cost and ubiquity of the Ethernet standard means that most newer computers have a network interface built into the motherboard.

Early designs utilized sliding " skirts " which made contact with the ground to keep the area of low pressure isolated.

Early long-distance services used surface wave propagation at very low frequencies, which are attenuated along the path.

Early samplers were very expensive, and typically had low sample rates and bit depth, resulting in grainy and aliased sound.

Early cameras had problems with low light levels, were grainy, and did not see much color underwater without auxiliary lighting.

Early caravels usually had an overall length of 15 to 30 m, displaced around 50 tons, a high length-to-beam ratio of around 3. 5 to 1, and narrow ellipsoidal frame ( unlike the circular frame of the nau ), making them very fast and maneuverable but with somewhat low capacity.

The earliest phase of construction dates to the Early Classic and consisted of a low platform that supported a perishable superstructure.

Early vacuum tubes had low gain at radio frequencies ( RF ).

Early in development the cells at the ventral midline have only been exposed to a low concentration of Shh for a relatively short time and express the transcription factor Olig2.

Active children may thrive in the educational activities provided by a quality commercial care center, but according to the National Center for Early Development and Learning, children from low quality centers may be significantly less advanced in terms of vocabulary and reading skills.

Similarly Early Head Start serves low income children birth to 3 years of age.

Early age at first pregnancy, older age of final pregnancy and the use of low dose hormonal contraception have also been shown to have a protective effect.