Egyptian researchers believe they have recognized the mummyof Hatshepsut, the most famous queen to rule ancient Egypt, found in an average tomb in Egypt’s Valley of the Kings. Researchers said the mummy was one of two females found in 1903 in a small t
First, humans knew of carbon, sulfur, iron, tin, lead, copper, mercury, silver, antimony, bismuth and gold as elements prior to the 1400’s, most of these from ancient times. Then, in 1689, Hennig Brand was the first to discover a new element. Brand was an alchemist, seeking the Phi...
然而,即使是她也只有大约6400周的寿命。 Expressing the matter in such startling terms makes it easy to see why philosophers from ancient Greece to the present day have taken the brevity of life to be the defining problem of human existence: we’ve been granted the mental capacities to make alm...
oak meadows can be valuable habitats for wildlife. Oak trees are part of a complex ecosystem. In many parts of Europe and North America, acorns are used to feed livestock. The Roman poet Virgil once wrote, "Full in the midst of his own strength he stands, stretching...