Although observations of some aerodynamic effects such as wind resistance ( e. g. drag ) were recorded by Aristotle, Leonardo da Vinci and Galileo Galilei, very little effort was made to develop a rigorous quantitative theory of air flow prior to the 17th century.

A search of historical observations revealed that the spots were probably the most prominent transient features ever seen on the planet, and that while the Great Red Spot is notable for its striking color, no spots of the size and darkness of those caused by the SL9 impacts have ever been recorded before.

In 1716, because of observations of corn varieties, he conducted one of the first recorded experiments with plant hybridization.

The practical measurement of traffic is typically based on continuous observations over several days or weeks, during which the instantaneous traffic is recorded at regular, short intervals ( such as every few seconds ).

Tuzuk-i-Jahangiri ( Memoirs of Jahangir ) has his recorded observations.

These studies were recorded in 13, 000 pages of notes and drawings, which fuse art and natural philosophy ( the forerunner of modern science ), made and maintained daily throughout Leonardo's life and travels, as he made continual observations of the world around him.

Andrew Bloxam, naturalist of the Blonde, and James Macrae, a botanist travelling for the Royal Horticultural Society, joined in exploring the island and recorded their observations.

Measurement reduces an observation to a number which can be recorded, and two observations which result in the same number are equal within the resolution of the process.

As Jerome completed his translations of each book of the Bible, he recorded his observations and comments in an extensive correspondence with other scholars ; and these letters were subsequently collected and appended as prologues to the Vulgate text for those books where they survived.

He soon began to send copies of his recorded microscopic observations to the Royal Society.

In 1955, Wright visited Indonesia for the Bandung Conference and recorded his observations in The Color Curtain: A Report on the Bandung Conference.

Halley's Comet has probably been in its current orbit for 16, 000 – 200, 000 years, although it is not possible to numerically integrate its orbit for more than a few tens of apparitions, and close approaches before 837 CE can only be verified from recorded observations.

Centuries of Babylonian observations of celestial phenomena are recorded in the series of cuneiform tablets known as the ' Enūma Anu Enlil '.

After a sufficient number of observations are recorded over a period of time, they are plotted in polar coordinates with the primary star at the origin, and the most probable ellipse is drawn through these points such that the Keplerian law of areas is satisfied.

Canning produced a detailed map of the stock route, Plan of Wiluna – Kimberley stock route exploration ( showing positions of wells constructed 1908 – 9 and 10 ) on which he also recorded his observations of the land and water sources along the route.

* 964 — Abd al-Rahman al-Sufi ( Azophi ) writes the Book of Fixed Stars, in which he makes the first recorded observations of the Andromeda Galaxy and the Large Magellanic Cloud, and lists numerous stars with their positions, magnitudes, brightness, and colour, and gives drawings for each constellation

* 964 — Abd al-Rahman al-Sufi ( Azophi ), a Persian astronomer, makes the first recorded observations of the Andromeda Galaxy and the Large Magellanic Cloud in his Book of Fixed Stars, and which are the first galaxies other than the Milky Way to be observed from Earth,

* 964 — Abd al-Rahman al-Sufi ( Azophi ), a Persian astronomer, makes the first recorded observations of the Andromeda Galaxy and the Large Magellanic Cloud, the first galaxies other than the Milky Way to be observed from Earth, in his Book of Fixed Stars

Theon of Alexandria wrote a detailed treatise on the astrolabe, and argues that Ptolemy used an astrolabe to make the astronomical observations recorded in the Tetrabiblos.

Thanks to the recorded observations of Far Eastern and Middle Eastern astronomers of 1054, Crab Nebula became the first astronomical object recognized as being connected to a supernova explosion.

He recorded observations on both earthquakes and volcanoes, including accounts of the eruptions of the volcanoes in the Aeolian Islands, north of Sicily.

After arriving in Bolğar, Ahmad ibn Fadlan made a trip to Wisu and recorded his observations of trade between the Volga Bolğars and local Finnic tribes.

Dugdale, writing his book The History of Imbanking and Drayning of divers Fenns and Marshes in 1662, which was based on personal observations he made during a trip to the Fens in May 1657, and the records of the Fens Office, most of which were destroyed in the Great Fire of London in 1666, thought it was the least of the rivers he had seen, and recorded that it " serveth almost to none other use, but to carry away so much of its own water, with the rill descending from Burne, as can be kept between two defensible banks.

Murasaki Shikibu's contemporary and rival Sei Shōnagon's revealing observations and musings as an attendant in the Empress ' court were recorded collectively as The Pillow Book in the 990s, which revealed the quotidian capital lifestyle.

where the subscript in indicates simply the order in which the observations were recorded and is usually assumed not to be significant.

Radio observations of Venus and Jupiter have already supplied unexpected experimental data on the physical conditions of these planets.

This contradicts the preceding observations, and so, under the assumption of this paper, we must reject the possibility that **zg is a Af curve on a quadric surface.

Since the change to better nutrition, he feels he can report on improvements in health, though he considers the following statements observations and not scientific proof.

Extensive observations by physicians during vaginal examinations have established the fact that a single finger inserted along the anterior wall ( the top line of the vagina as the woman lies on her back ) may cause a great deal of distress in a virgin.

These dynamic relationships, between what can be observed on the ground, as opposed to what can be observed by compiling many local observations remain fundamental in any kind of anthropology, whether cultural, biological, linguistic or archaeological.

The sculptors derived this from observations on human beings, but they also embodied in concrete form, issues beyond the reach of ordinary thought.

In their observations of medical ethics committees, Jonsen and Toulmin note that a consensus on particularly problematic moral cases often emerges when participants focus on the facts of the case, rather than on ideology or theory.

In the 10th century, Abd al-Rahman al-Sufi carried out observations on the stars and described their positions, magnitudes and star color, and gave drawings for each constellation, in his Book of Fixed Stars.

His observations on eclipses were still used centuries later in Simon Newcomb's investigations on the motion of the moon, while his other observations inspired Laplace's Obliquity of the Ecliptic and Inequalities of Jupiter and Saturn.

The observations show that the cloud is asymmetrical and matches the pattern of X-ray binaries ( binary star systems containing black holes or neutron stars ), mostly on one side of the galactic center.

Wallace was a prolific author who wrote on both scientific and social issues ; his account of his adventures and observations during his explorations in Indonesia and Malaysia, The Malay Archipelago, was one of the most popular and influential journals of scientific exploration published during the 19th century.

Most of his written musical observations are found in his commentary on Aristotle's Poetics.

He became famous for the simplicity of his way of living and his acute observations on the institutions and customs of the Greeks.

Anaximenes used his observations and reasoning to provide causes for other natural phenomena on the earth as well.

The Franciscan missionary, William of Rubruck, in his work on Asian customs, declares that everything he had heard from Andrew on the subject was fully borne out by his own personal observations.

Apus was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35 cm diameter celestial globe published in 1597 ( or 1598 ) in Amsterdam by Plancius with Jodocus Hondius.

Upon completing their initial adjustments, the pair configured Orion for their three-day stay on the lunar surface, removed their spacesuits and took initial geological observations of the immediate landing site.

They do not rely on direct observations of the stars.

Dürer based these constructions on both Vitruvius and empirical observations of, " two to three hundred living persons ," in his own words.