QUES: While Knickebein was used by German crews en masse, X-Gerat use was limited to specially trained pathfinder crews. Special receivers were mounted in He 111s, with a radio mast on the bomber's fuselage. The system worked on a higher frequency (6677 MHz, compared to Knickebein's 3033 MHz). Transmitters on the ground sent pulses at a rate of 180 per minute. X-Gerat received and analysed the pulses, giving the pilot both visual and aural "on course" signals. Three beams intersected the beam along the He 111's flight path. The first cross-beam acted as a warning for the bomb-aimer to start the bombing-clock which he would activate only when the second cross-beam was reached. When the third cross-beam was reached the bomb aimer activated a third trigger, which stopped the first hand of the equipment's clock, with the second hand continuing. When the second hand re-aligned with the first, the bombs were released. The clock's timing mechanism was co-ordinated with the distances of the intersecting beams from the target so the target was directly below when the bomb release occurred.

While Knickebein was used my most German crews who used the X-Gerat system?
What is the answer?
ANS: specially trained pathfinder crews
QUES: As sun-god and god of light, Apollo was also known by the epithets Aegletes (/litiz/ -GLEE-teez; , Aigletes, from , "light of the sun"), Helius (/hilis/ HEE-lee-s; , Helios, literally "sun"), Phanaeus (/fnis/ f-NEE-s; , Phanaios, literally "giving or bringing light"), and Lyceus (/lasis/ ly-SEE-s; , Lykeios, from Proto-Greek *, "light"). The meaning of the epithet "Lyceus" later became associated with Apollo's mother Leto, who was the patron goddess of Lycia () and who was identified with the wolf (), earning him the epithets Lycegenes (/lasdniz/ ly-SEJ--neez; , Lukegenes, literally "born of a wolf" or "born of Lycia") and Lycoctonus (/lakktns/ ly-KOK-t-ns; , Lykoktonos, from , "wolf", and , "to kill"). As god of the sun, Apollo was called Sol (/sl/ SOL, literally "sun" in Latin) by the Romans.

Since Apollo was known as god of the sun, what was another name for Apollo?
What is the answer?
ANS: Sol
QUES: Anthropologists have contributed to the debate by shifting the focus of research: One of the first challenges for the researcher wishing to carry out empirical research in this area is to identify an appropriate analytical tool. The concept of boundaries is useful here for demonstrating how identity works. In the same way as Barth, in his approach to ethnicity, advocated the critical focus for investigation as being "the ethnic boundary that defines the group rather than the cultural stuff that it encloses" (1969:15), social anthropologists such as Cohen and Bray have shifted the focus of analytical study from identity to the boundaries that are used for purposes of identification. If identity is a kind of virtual site in which the dynamic processes and markers used for identification are made apparent, boundaries provide the framework on which this virtual site is built. They concentrated on how the idea of community belonging is differently constructed by individual members and how individuals within the group conceive ethnic boundaries.

What are boundaries not used to define?
What is the answer?
ANS:
unanswerable