Early experiments are often designed to provide mean-unbiased estimates of treatment effects and of experimental error.

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 twentieth-century experiments on the physics of very small-scale phenomena led to the discovery of phenomena which could not be predicted on the basis of classical physics, and to the development of new models ( theories ) that described and predicted very accurately these micro-scale phenomena.

Early motion picture experiments were performed using paper roll film, which was difficult to view a single, continuously moving image without complex apparatus.

Early experiments in color required extremely long exposures ( hours or days for camera images ) and could not " fix " the photograph to prevent the color from quickly fading when exposed to white light.

Early parapsychological research employed the use of Zener cards in experiments designed to test for the existence of telepathy | telepathic communication.

Early experiments in chemistry had their roots in the system of Alchemy, a set of beliefs combining mysticism with physical experiments.

Early experiments allowed two separate messages to travel in opposite directions simultaneously, first using an electric battery at both ends, then at only one end.

Early experiments using rockets to boost gliders into the air were conducted in Germany in the 1920s ( Lippisch Ente ), and later both the Royal Air Force and the Luftwaffe introduced such systems in World War II.

Early experiments required hours of exposure in the camera to produce visible results.

Early experiments with homopyrimidine strands ( strands consisting of only one repeated pyrimidine base ) have shown that the T < sub > m </ sub > (" melting " temperature ) of a 6-base thymine PNA / adenine DNA double helix was 31 ° C in comparison to an equivalent 6-base DNA / DNA duplex that denatures at a temperature less than 10 ° C.

Early primate study focused primarily in medical research, but some scientists also conducted " civilizing " experiments on chimpanzees in order to gauge both primate intelligence and the limits of their brainpowerneeded.

Early attempts to add the ability to real airplanes were not very successful ; the software was based on experiments conducted in flight simulators where jet engines are usually modeled as " perfect " devices with exactly the same thrust on each engine, a linear relationship between throttle setting and thrust, and instantaneous response to input.

Early experiments were directed at finding a " chameleon substance " which would assume the color of the light falling on it.

* Early 1949 – The Royal Navy experiments with landing undercarriage-less aircraft aboard aircraft carriers, landing an experimental de Havilland Sea Vampire F. 21 with strengthened undersides with its landing gear retracted aboard.

Early experiments on associative plasticity were carried out by W. B.

Early experiments with stereo AM radio involved two separate stations ( both AM or sometimes one AM and one FM ) broadcasting the left and right audio channels.

Early experiments on phototropism using coleoptiles suggested that plants grow towards light because plant cells on the darker side elongate more than those on the lighter side.

The two blackberry cultivars involved in these experiments were probably ' Aughinburgh ' and ' Texas Early ' ( a cultivar of Rubus velox ) which were two of the three varieties that Logan had planted in his yard that year.

Early experiments with overglaze colored enamels at Arita are associated with the famous Sakaida Kakiemon ( 1596 – 1666 ), whose name is memorialized in " Kakiemon " ware, the other main tradition in lightly fired overglaze enamel decors.

Early experiments with synchronised machine guns were carried out before the war in several countries.

Early experiments showed that notatin exhibits in vitro antibacterial activity ( in the presence of glucose ) due to hydrogen peroxide formation.

Early smoke screen experiments attempted the use of colored pigment, but found that titanium dioxide was the most light scattering particle known and therefore best for use in obscuring troops and naval vessels.

Early in 1941 they were assigned to a script titled Hot Nocturne.

Early in her life she had discovered that where there were men, there was money, and with the two came luxury and liquor.

But his first few days with Troop H were full of surprises, beginning with First Sergeant Robert Early.

Early atomic time scales consisted of quartz clocks with frequencies calibrated by a single atomic clock ; the atomic clocks were not operated continuously.

Early evidence of such practices appears as markings on bones and cave walls, which show that lunar cycles were being noted as early as 25, 000 years ago ; the first step towards recording the Moon ’ s influence upon tides and rivers, and towards organizing a communal calendar.

Early plate in Italy, and elsewhere in the 13th – 15th century were made of iron.

He also wrote songs, including his Seven Early Songs ( Sieben Frühe Lieder ), three of which were Berg's first publicly performed work in a concert that featured the music of Schoenberg's pupils in Vienna that year.

Early forms of industry developed at this time ; however, unlike in other cities, no guilds were formed in Aarau.

For much of artillery's history during the Middle Ages and the Early modern period, artillery pieces on land were moved with the assistance of horse teams.

Early ammeters were laboratory instruments which relied on the Earth's magnetic field for operation.

Early skirmishes were followed by victory for the Afghans against the smaller Maratha garrisons in Northwest India and by 1759 Ahmad and his army had reached Lahore and were poised to confront the Marathas.

Early number systems that included positional notation were not decimal, including the sexagesimal ( base 60 ) system for Babylonian numerals and the vigesimal ( base 20 ) system that defined Maya numerals

Early BBSes were often a local phenomenon, as one had to dial into a BBS with a phone line and would have to pay additional long distance charges for a BBS out of the local calling area.

Early, African-influenced banjos were built around a gourd body and a wooden stick neck.

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 buses, known as trolleybus, were powered by electricity supplied from overhead lines.

Early buses were merely a bus body fitted to a truck chassis.

Early horse-drawn buses were a combination of a hackney carriage and a stagecoach.

Early battles were probably fought between rival hunting bands as disorganized mobs.

Early implementations were for the DEC PDP-7 and PDP-11 minicomputers using early Unix, and Honeywell 36-bit mainframes running the operating system GCOS.

Early traces of bricks were found in a ruin site in Xi ' an in 2009 dated back about 3800 years ago.

Early collections of English ballads were made by Samuel Pepys ( 1633 – 1703 ) and in the Roxburghe Ballads collected by Robert Harley, 1st Earl of Oxford and Mortimer ( 1661 – 1724 ).

Early in the history of the college, there had been some hesitancy on the part of other institutions to accept BJC credits at face value, but by the 1960s, BJU alumni were being accepted by most of the major graduate and professional schools in the United States.

Early computer installations were designed only to support a single writing system, typically for left-to-right scripts based on the Latin alphabet only.