(1) Women's eggs are actually completely formed in mother's body at fetal stage.
(2) The memory capacity of human brain is at least 1PB, which is roughly equivalent to size of entire Internet (I don't know when it will be full).
(3) Whales and dolphins are friendly between species.
(4) Casablanca, which won Oscar for Best Picture, Director and Screenplay. The film featured actors from 34 nationalities, many of whom were refugees from World War II.
(5) Calling 120 is free, but calling ambulance 120 is charged.
(6) In 2nd century BC, ancient Rome already had very powerful surgical techniques. Many surgical instruments did not appear until 19th century.
(7) Dolphins are only animals that have a faster brain usage rate than humans.
(8) In 1962, Tianma Film Studio in my country filmed first domestic 3D film, The Magician's Adventure, directed by Sang Hu and starring Chen Qiang.
(9) Why blue color should be used in doctor's prescription, because medical records are used as legal documents, and it is very important to determine time of writing in case of disputes. The blue-black ink is made from light green iron tannate and a blue dye, and writing time can be checked by checking oxidation state of iron.
(10) A normal woman needs to use about 15,000 sanitary napkins in her lifetime.
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