QUES: The tide-predicting machine invented by Sir William Thomson in 1872 was of great utility to navigation in shallow waters. It used a system of pulleys and wires to automatically calculate predicted tide levels for a set period at a particular location.
When was the tide-predicting machine invented by Sir William Thomson invented?

ANS: 1872

QUES: In Ireland comprehensive schools were an earlier model of state schools, introduced in the late 1960s and largely replaced by the secular community model of the 1970s. The comprehensive model generally incorporated older schools that were under Roman Catholic or Protestant ownership, and the various denominations still manage the school as patrons or trustees. The state owns the school property, which is vested in the trustees in perpetuity. The model was adopted to make state schools more acceptable to a largely conservative society of the time.
Who owns the land on which Irish comprehensive schools are found?

ANS: The state

QUES: In addition to the use of sound for communication, a wide range of insects have evolved chemical means for communication. These chemicals, termed semiochemicals, are often derived from plant metabolites include those meant to attract, repel and provide other kinds of information. Pheromones, a type of semiochemical, are used for attracting mates of the opposite sex, for aggregating conspecific individuals of both sexes, for deterring other individuals from approaching, to mark a trail, and to trigger aggression in nearby individuals. Allomonea benefit their producer by the effect they have upon the receiver. Kairomones benefit their receiver instead of their producer. Synomones benefit the producer and the receiver. While some chemicals are targeted at individuals of the same species, others are used for communication across species. The use of scents is especially well known to have developed in social insects.:96–105
Semiochemicals come from where?

ANS: plant metabolites

QUES: Ibn Sina (Avicenna) is regarded as the most influential philosopher of Islam. He pioneered the science of experimental medicine and was the first physician to conduct clinical trials. His two most notable works in medicine are the Kitāb al-shifāʾ ("Book of Healing") and The Canon of Medicine, both of which were used as standard medicinal texts in both the Muslim world and in Europe well into the 17th century. Amongst his many contributions are the discovery of the contagious nature of infectious diseases, and the introduction of clinical pharmacology.
What does Kitab al-shifa mean?

ANS:
Book of Healing