(anticlockwise)
41Covariant transformation — See also Covariance and contravariance of vectors In physics, a covariant transformation is a rule (specified below), that describes how certain physical entities change under a change of coordinate system. In particular the term is used for… …
42Triskelion — A triskelion or triskele (both from the Greek gr. τρισκέλιον or gr. τρισκελής , for three legged ) is a symbol consisting of three interlocked spirals, or three bent human legs, or any similar symbol with three protrusions and a threefold… …
43Town Hall railway station, Sydney — Cityrail Station alt|station name=Town Hall| servicearea=Eastern Suburbs Illawarra Line|servicearea color=#Illawarra line colour|servicearea textcolor=white servicearea2=Bankstown Line|servicearea color2=#Bankstown line colour|servicearea… …
44Circular Quay railway station, Sydney — Cityrail Station alt|code=CQY| Circular Quay servicearea=Bankstown Line|servicearea color=#Bankstown line colour|servicearea textcolor=black servicearea2=Inner West Line|servicearea color2=#Inner West line colour|servicearea textcolor2=white… …
45Argyle Line — The Argyle Line is a suburban railway located in West Central Scotland. It connects the Lanarkshire towns of Lanark, Larkhall and Motherwell to West Dunbartonshire via Glasgow.HistoryOpened in November 1979, the Argyle Line was created, as joint… …
46Prague Astronomical Clock — The clock tower The Prague Astronomical Clock or Prague Orloj (Czech: Pražský orloj [praʃskiː orloj]) is a medieval astronomical clock located in Prague, the capital of the Czech Republic, at …
47Wynyard railway station, Sydney — Cityrail Station alt| Wynyard servicearea=Bankstown Line|servicearea color=#Bankstown line colour|servicearea textcolor=white servicearea2=Inner West Line|servicearea color2=#Inner West line colour|servicearea textcolor2=white… …
48Aubrey holes — The Aubrey holes are a ring of 56 pits at Stonehenge named after the seventeenth century antiquarian, John Aubrey. They date to the earliest phases of Stonehenge in the late fourth and early third millennium BC. Despite decades of argument and… …
49East Hills railway station, Sydney — Cityrail Station alt|station name=East Hills| servicearea=Airport East Hills Line|servicearea color=#East Hills line colour|servicearea textcolor=white|code=EHS|suburb=East Hills|street=Park Rd|distance=24.03|altitude=?|traintype=Suburban all… …
50Fortifications of Metz — The Fortifications of Metz, a city in northeastern France, are extensive, due to the city s strategic position near the border of France and Germany. After the Franco Prussian War of 1870, the area was annexed by the newly created German Empire… …
