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+ TThe best meatloaf recipe ever! This traditional meatloaf recipe is just like mom used to make, made with ground beef and a sweet and tangy glaze topping.
+From Wikipedia, the free encyclopedia.
++ A sundial measures time by the position of the sun. The + most commonly seen designs, such as the 'ordinary' or standard garden + sundial, cast a shadow on a flat surface marked with the hours of the day. + As the position of the sun changes, the time indicated by the shadow + changes. However, sundials can be designed for any surface where a fixed + object casts a predictable shadow. +
++ Most sundial designs indicate apparent solar time. Minor design variations + can measure standard and daylight saving time, as well. +
+ ++ Sundials in the form of obelisks (3500 BC) and shadow clocks (1500 BC) are + known from ancient Egypt, and were developed further by + other cultures, including the Chinese, Greek, and Roman cultures. A type + of sundial without gnomon is described in the old Old Testament (Isaiah + 38:2). +
++ The mathematician and astronomer Theodosius of Bithynia (ca. 160 BC-ca. + 100 BC) is said to have invented a universal sundial that could be used + anywhere on Earth. The French astronomer Oronce Fine constructed a sundial + of ivory in 1524. The Italian astronomer Giovanni Padovani published a + treatise on the sundial in 1570, in which he included instructions for the + manufacture and laying out of mural (vertical) and horizontal sundials. + Giuseppe Biancani's Construction instrumenti ad horologia solaria + discusses how to make a perfect sundial, with accompanying illustrations. +
+ ++ Many ornamental sundials are designed to be used at 45 degrees north. By + tilting such a sundial, it may be installed so that it will keep time. + However, some mass-produced garden sundials are inaccurate because of poor + design and cannot be corrected. +
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