Related questions

Q.What is the difference between an orary and an armillary sphere?xxxxx

A.An orrery is a device copying the motions of the planets and moons in relation to the Sun. The armillary sphere is an Earth-centric model.

Q.What is the name for a group of crows? xxXxx

A.The collective noun for a group of crows is a murder of crows. The phrase dates from 1450. A group of owls is a parliament of owls.

Q.What's the collective noun for gnu?

A.The collective noun for gnu or wildebeest is either a herd or an implausibility. The collective noun for ravens is an unkindness or conspiracy of ravens.