Those such as James A. Weisheipl and Joachim R. Söder have referred to him as the greatest German philosopher and theologian of the Middle Ages, an opinion supported by contemporaries such as Roger Bacon.

Contemporaries such as Roger Bacon applied the term " Magnus " to Albertus during his own lifetime, referring to his immense reputation as a scholar and philosopher.

Two aspects of this attitude deserve to be mentioned: 1 ) he did not only study science from books, as other academics did in his day, but actually observed and experimented with nature ( the rumours starting by those who did not understand this are probably at the source of Albert's supposed connections with alchemy and witchcraft ), 2 ) he took from Aristotle the view that scientific method had to be appropriate to the objects of the scientific discipline at hand ( in discussions with Roger Bacon, who, like many 20th century academics, thought that all science should be based on mathematics ).

Such a feat was also attributed to Roger Bacon.

Roger Bacon and Leonardo da Vinci were some of the first modern Europeans to study aeronautics.

This massive text, which Roger Bacon would later sarcastically describe as weighing as much as a horse, was unfinished at his death ; his students, William of Middleton and John of Rupella, were charged with its completion.

Successful recreations have been performed by Anthemius of Tralles ( 6th century AD ), Proclus ( 6th century ) ( who by this means purportedly destroyed the fleet of Vitellus besieging Constantinople ), Ibn Sahl in his On Burning Mirrors and Lenses ( 10th century ), Alhazen in his Book of Optics ( 1021 ), Roger Bacon ( 13th century ), Giambattista della Porta and his friends ( 16th century ), Athanasius Kircher and Gaspar Schott ( 17th century ), the Comte du Buffon in 1740 in Paris, Ioannis Sakas in the 1970s in Greece, and others.

However, there were those who did not believe this, for instance the Fransiscan friar Roger Bacon ( c. 1214-1294 ) stated that books falsely claiming to be by ancient authors " ought to be prohibited by law ".

The works of Ibn al-Haytham and Abū Rayhān Bīrūnī eventually passed on to Western Europe where they were studied by scholars such as Roger Bacon and Witelo.

Roger Bacon was " a tolerable Hebrew scholar ".

While empirical investigations of the natural world have been described since classical antiquity ( for example, by Thales, Aristotle, and others ), and scientific methods have been employed since the Middle Ages ( for example, by Ibn al-Haytham, Abū Rayhān al-Bīrūnī and Roger Bacon ), the dawn of modern science is generally traced back to the early modern period, during what is known as the Scientific Revolution that took place in 16th and 17th century Europe.

Graetz even goes to the length of regarding Anatoli as identical with the Jew Andreas, who, according to Roger Bacon, assisted Michael Scot in his philosophic translations from the Arabic, seeing that Andreas might be a corruption of Anatoli.

He was influenced by Roger Bacon, Robert Grosseteste, Thomas Bradwardine, William of Occam, and Richard Fitzralph.

If Wycliffe was in philosophy the superior of his contemporaries and had no equal in scholastic discipline, he belongs with the series of great scholastic philosophers and theologians in which England in the Middle Ages was so rich – with Alexander of Hales, Roger Bacon, Duns Scotus, William of Ockham ( Occam ), and Thomas Bradwardine.

His knowledge of optics was connected to the handed-down long-standing tradition of the Kitab al-manazir ( The Optics ; De aspectibus ) of the Arab polymath Alhazen ( Ibn al-Haytham, d. c. 1041 ), which was mediated by Franciscan optical workshops of the 13th-century Perspectivae traditions of scholars such as Roger Bacon, John Peckham and Witelo ( similar influences are also traceable in the third commentary of Lorenzo Ghiberti, Commentario terzo ).

* Bacon, Roger ( 1659, London ).

Grosseteste's most famous disciple, Roger Bacon, wrote works citing a wide range of recently translated optical and philosophical works, including those of Alhazen, Aristotle, Avicenna, Averroes, Euclid, al-Kindi, Ptolemy, Tideus, and Constantine the African.

The original principal alternative candidate was Francis Bacon, but by the beginning of the twentieth century other candidates, typically aristocrats, were put forward, most notably Roger Manners, 5th Earl of Rutland and William Stanley, 6th Earl of Derby.

He also ordered the Franciscan scholar Roger Bacon to write the Opus maius, which is addressed to him.

* " Le pape, le roy et l ' alchimiste: Clémént IV – saint Louis – Roger Bacon " by Laurent Ryder

Roger Bacon was born in Ilchester in Somerset, England, possibly in 1213 or 1214 at the Ilchester Friary.

In 1267, the medieval scientist Roger Bacon stated the times of full moons as a number of hours, minutes, seconds, thirds, and fourths ( horae, minuta, secunda, tertia, and quarta ) after noon on specified calendar dates.

* Roger Bacon, Franciscan friar, philosopher, and scientist

* Roger Bacon publishes the formula for black powder in Europe.

Since the 1990s, scholars including Stanley Payne, Roger Eatwell, Roger Griffin and Robert O. Paxton have been gathering a rough consensus on the ideology's core tenets.

Urquhart recruits the party's public relations consultant, Roger O ' Neill, by blackmailing him about his cocaine addiction.

He admits to what he has done, in particular, to Roger O ' Neill's murder.

* 1955 – Roger O ' Donnell, English musician ( The Cure )

He left school at the age of 16 and took up a clerical job with Elder Dempster, a Liverpool shipping company headed by Alfred Lewis Jones, later an enemy on the Congo issue .< ref > Seamas O Siochain, Roger Casement, Imperialist, Rebel, Revolutionary p. 15

The Giants already had their share of stars during its brief history at this point, such as Smiling Mickey Welch, Roger Connor, Tim Keefe, Jim O ' Rourke and John Montgomery Ward, the player-lawyer who formed the renegade Players League in 1890 to protest unfair player contracts.

Cary Grant as Roger O. Thornhill in North by Northwest ( 1959 )

** Roger O ' Donnell, English musician

These include the graves of Daniel O ' Connell, Charles Stewart Parnell, Michael Collins, Éamon de Valera, Arthur Griffith, Maude Gonne, Kevin Barry, Roger Casement, Constance Markievicz, Pádraig Ó Domhnaill, Seán MacBride, Jeremiah O ' Donovan Rossa, Frank Duff, Brendan Behan, Christy Brown, and Luke Kelly of the Dubliners.

Other published poets and writers include John O ' Rourke, Roger Hudson, Stephen Downes, Dixie Nugent, Shane Fagan and Terry McHugh.

During the European leg of the tour, Lol Tolhurst's alcohol consumption was interfering with his ability to perform so The Psychedelic Furs keyboardist Roger O ' Donnell was frequently called upon to stand in for him.

In February 1989, Tolhurst's exit was made official and announced to the press ; this resulted in Roger O ' Donnell becoming a full-fledged member of the band and left Smith as The Cure's only remaining founder member.

In May 1990, Roger O ' Donnell quit and was replaced with the band's guitar technician Perry Bamonte.

The album sessions began in 1994 with only Smith and Bamonte present ; the pair were later joined by Gallup ( who was recovering from physical problems ) and Roger O ' Donnell, who had been asked to rejoin the band at the end of 1994.

In May 2005, Roger O ' Donnell and Perry Bamonte were fired from the band.

These " Reflections " shows notably featured Roger O ' Donnell and Laurence Tolhurst, both in a keyboard and percussion role.

Roger O ' Donnell again joined the band on stage.

On 11 September 2011, Roger O ' Donnell announced on his Facebook page that he had officially rejoined the band.

The " SummerCure " tour, featuring a five-piece line-up of Robert Smith, Simon Gallup, Roger O ' Donnell, Jason Cooper and Reeves Gabrels, included headlining appearances at the 2012 Reading and Leeds Festivals, and concluded in Ireland on 1 September with a headline slot at the Electric Picnic.

During Roger O ' Donnell's absence between 2005 and 2011 keyboards were not used at all during their live shows, and were not as prominent on their 2008 album 4: 13 Dream.

* Roger O ' Donnell – keyboards

* Ó Síocháin, Séamas and Michael O ’ Sullivan, eds: The Eyes of Another Race: Roger Casement's Congo Report and 1903 Diary.