Biometrics is, generally, the subject of what can be measured of your biological features. As it pertains to computer security, biometrics has to do with authentication techniques that utilize distinguishing physical features that can be mechanically substantiated.
Astronomy is an interesting science to most people because it is filled with many fun astronomy facts. Everything from the size and temperature of our own star, the Sun, to the make-up of distant planets has been recorded. All of this information can be retold to entertain and enlighten your friends.
Prior to their implementation of the Western solar calendar system, the Chinese almost exclusively followed their own lunar calendar for determining the times of planting and harvesting and festival days. Although people in China today use the Western calendar for almost all business, governmental and practical matters of daily life, the old system still serves as the basis for working out many seasonal holidays. This coexistence of two calendar systems has long been accepted by the people of China.














The Ancient Chinese Lunar Calendar
Prior to their adoption of the Western solar calendar scheme, the Chinese almost wholly followed their own lunar calendar for determining the times of planting and harvesting and festival days. Although people in China today use the Western calendar for almost all business, governmental and practical matters of daily life, the old method still serves as the basis for determining many seasonal holidays. This coexistence of two calendar schemes has long been accepted by the people of China.
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