Context and question: Ibn Sina subsequently settled at Rey, in the vicinity of modern Tehran, the home town of Rhazes; where Majd Addaula, a son of the last Buwayhid emir, was nominal ruler under the regency of his mother (Seyyedeh Khatun). About thirty of Ibn Sina's shorter works are said to have been composed in Rey. Constant feuds which raged between the regent and her second son, Shams al-Daula, however, compelled the scholar to quit the place. After a brief sojourn at Qazvin he passed southwards to Hamadãn where Shams al-Daula, another Buwayhid emir, had established himself. At first, Ibn Sina entered into the service of a high-born lady; but the emir, hearing of his arrival, called him in as medical attendant, and sent him back with presents to his dwelling. Ibn Sina was even raised to the office of vizier. The emir decreed that he should be banished from the country. Ibn Sina, however, remained hidden for forty days in sheikh Ahmed Fadhel's house, until a fresh attack of illness induced the emir to restore him to his post. Even during this perturbed time, Ibn Sina persevered with his studies and teaching. Every evening, extracts from his great works, the Canon and the Sanatio, were dictated and explained to his pupils. On the death of the emir, Ibn Sina ceased to be vizier and hid himself in the house of an apothecary, where, with intense assiduity, he continued the composition of his works.
How many of Ibn Sina's longer works were said to have been created in Rey?
Answer: unanswerable
Context and question: In 1930, Paul Dirac proposed a model of the vacuum as an infinite sea of particles possessing negative energy, called the Dirac sea. This theory helped refine the predictions of his earlier formulated Dirac equation, and successfully predicted the existence of the positron, confirmed two years later. Werner Heisenberg's uncertainty principle formulated in 1927, predict a fundamental limit within which instantaneous position and momentum, or energy and time can be measured. This has far reaching consequences on the "emptiness" of space between particles. In the late 20th century, so-called virtual particles that arise spontaneously from empty space were confirmed.
When werer virtual particles confirmed?
Answer: late 20th century
Context and question: The links between religious and political life were vital to Rome's internal governance, diplomacy and development from kingdom, to Republic and to Empire. Post-regal politics dispersed the civil and religious authority of the kings more or less equitably among the patrician elite: kingship was replaced by two annually elected consular offices. In the early Republic, as presumably in the regal era, plebeians were excluded from high religious and civil office, and could be punished for offenses against laws of which they had no knowledge. They resorted to strikes and violence to break the oppressive patrician monopolies of high office, public priesthood, and knowledge of civil and religious law. The senate appointed Camillus as dictator to handle the emergency; he negotiated a settlement, and sanctified it by the dedication of a temple to Concordia. The religious calendars and laws were eventually made public. Plebeian tribunes were appointed, with sacrosanct status and the right of veto in legislative debate. In principle, the augural and pontifical colleges were now open to plebeians. In reality, the patrician and to a lesser extent, plebeian nobility dominated religious and civil office throughout the Republican era and beyond.
What group was excluded from high offices ?
Answer:
plebeians