January 15, 2012
Nanotechnology is science, engineering, and technology conducted at the nanoscale, which is about 1 to 100 nanometers. Physicist Richard Feynman, the father of nanotechnology. Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering. [...]
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January 15, 2012
A purity ring is a ring given to an adolescent girl to show that she has made a vow to not have sex before she’s married. It’s sort of a public statement of virginity and also reminds her of the commitment she made to “remain pure” until marriage. These rings are also worn by guys, [...]
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