Examlex
Which of the following is one of the facts that must be known in order to determine the distance to a star by parallax?
Tivoli
A town in Italy, known for its historical sites, including the Roman ruins of Villa Adriana and the Renaissance architectural complex Villa d'Este.
Hadrian
Roman Emperor from 117 to 138 A.D., known for constructing Hadrian's Wall which marked the northern limit of Britannia.
Architectural Coffering
A series of sunken panels in the shape of squares, rectangles, or octagons in a ceiling, soffit or vault, used as a decorative element in classical architecture.
Lighten Weight
The process or action of making an object less heavy or reducing its mass.
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