The formal displacement of the geocentric principle far from being Copernicus' primary concern, was introduced only to resolve what seemed to him intolerable in orthodox astronomy, namely, the ' unphysical ' triplication of centric reference-points: one center from which the planet's distances were calculated, another around which planetary velocities were computed, and still a third center ( the earth ) from which the observations originated.

Qualitative observations were made and high-speed motion pictures were taken to study flow phenomena in the arc at various mass flow velocities.

In the zoological sciences, some of his observations were confirmed to be accurate only in the 19th century.

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 instrument was set up in November 1725, and observations on γ Draconis were made on the 3rd, 5th, 11th, and 12 December.

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.

During the 1930s other ideas were proposed as non-standard cosmologies to explain Hubble's observations, including the Milne model, the oscillatory Universe ( originally suggested by Friedmann, but advocated by Albert Einstein and Richard Tolman ) and Fritz Zwicky's tired light hypothesis.

These observations led him to suspect that the flea might be an intermediary factor in the transmission of plague, since people acquired plague only if they were in contact with recently dead rats, who had died less than 24 hours before.

A few observations found in bestiaries, such as the migration of birds, were discounted by the natural philosophers of later centuries, only to be rediscovered in the modern scientific era.

Although neither of the girls claimed to see any fairies, and there were no more photographs, " on the contrary, he saw them everywhere " and wrote voluminous notes on his observations.

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.

These were lists, prepared by collating observations on the actions of substances one upon another, showing the varying degrees of affinity exhibited by analogous bodies for different reagents, and they retained their vogue for the rest of the century, until displaced by the profounder conceptions introduced by Claude Berthollet.

The results of Grimaldi's observations were published posthumously in 1665.

The first botanical observations of the island were made by Hume in 1883, when the coconut plantations had been in operation for a full century.

In July 2012, lensing observations were used to identify a " filament " of dark matter between two clusters of galaxies, as cosmological simulations have predicted.

ET, in turn, can now be seen ( in light of modern results ) as close to the average mean solar time between 1750 and 1890 ( centered on 1820 ), because that was the period during which the observations on which Newcomb's tables were based were performed.

They were later verified by observations such as the slight bending of starlight by the Sun during a solar eclipse in 1919, and such considerations are now an integral part of the software that runs the GPS system.

Such observations of Heidegger, along with a critique of Max Scheler, were put into a lecture Husserl gave to various Kant Societies in Frankfurt, Berlin, and Halle during 1931 entitled Phänomenologie und Anthropologie.

Ancient Greek philosophers such as Hippocrates and Aristotle were among the first to record observations on natural history.

Although they were cautious about claiming a planetary detection, their radial-velocity observations suggested that a planet orbits the star Gamma Cephei.

The expedition sailed from England on 26 August 1768, rounded Cape Horn and continued westward across the Pacific to arrive at Tahiti on 13 April 1769, where the observations of the Venus Transit were made.

As he slowly continued analyzing Tycho's Mars observations — now available to him in their entirety — and began the slow process of tabulating the Rudolphine Tables, Kepler also picked up the investigation of the laws of optics from his lunar essay of 1600.

Holographic and visual observations indicate significant activity continued on the far side of the Sun.

Jung continued to publish books until the end of his life, including Flying Saucers: A Modern Myth of Things Seen in the Skies ( 1959 ), which analyzed the archetypal meaning and possible psychological significance of the reported observations of UFOs.

He became a land surveyor and continued to write increasingly detailed natural history observations about the township in his journal, a two-million word document he kept for 24 years.

Here he completed the reduction, and continued the series, of the observations made by his predecessor, Thomas James Henderson.

Both stressed the realist and scientific aspects of the movement, though Hunt continued to emphasise the spiritual significance of art, seeking to reconcile religion and science by making accurate observations and studies of locations in Egypt and Palestine for his paintings on biblical subjects.

His family continued the observations until April 30, 1874.

In studying his writings, he continued, one should not seek to learn from Michelet ’ s claims ; rather, one should maintain a critical distance and learn from his errors, since understanding how and why his thinking is flawed will show more about his period of history than his own observations.

" As with other deconstructionists, he continued, there are " Pronunciamentos based on unstructured, undisciplined and unresearched observations about the past ..." He concludes, that " This is not to say that Suleri's work is totally without substance or that all of her insights are without value.

Beregovoy continued to orbit, making topographical and meteorological observations for the next two days.

Several astronomers continued to obtain telescopic observations for some months, the last being Vincent Wisniewski at Novocherkassk, who noted it as barely reaching an apparent magnitude of 11 by August 12.

An appeal to a principle of the uniformity of nature would be required to deductively necessitate the continued accuracy of predictions based on laws that have only succeeded in generalizing past observations.

Attempts to disprove the spontaneous generation of life from non-life continued in the early 19th century with observations and experiments by Franz Schulze and Theodor Schwann.

She had continued her independent observations and greeted the war with dread, while supporting slavery and states ' rights.

Lying on his back beneath the telescope, trained at the afternoon sun, he regained consciousness after a few minutes and continued his observations.

Meanwhile, ground-based researchers remotely operating experiments in Columbias cargo bay continued their observations.

Scientists working with the Space Shuttle Backscatter Ultraviolet instrument continued probing the layers of Earth's atmosphere and recorded data on tropospheric emissions from Mexican and Central American volcanoes ; sulfur dioxide from industrial by-products in the troposphere above China and Japan ; and observations in the mesophere above the Mexican volcano Colima.

Having begun his journal at the age of thirteen, Cummings continued to record his observations there-gradually moving from dry scientific notes to a more personal, literary style.

As these sorts of evolutionary changes continued to take place in medical practice, it was increasingly necessary to uniquely identify data that was accessible only to the physician, and to be able to differentiate those observations from others that were also available to the patient, and it just seemed natural to use " signs " for the class of physician-specific data, and " symptoms " for the class of observations available to the patient.

He continued to make astronomical observations during the war, reporting on the 1864 appearance of Comet Tempel 1864 II from the deck of the Catskill.

After moving to Königsberg Observatory, Struve built a 32. 5-inch refractor telescope there and continued his work on the moons of Saturn, the last observations of which he made in 1916.

Nevertheless Brorsen remained twelve further years in Senftenberg and continued his observations with his own instruments.