Find out information about kaleidoscope. optical instrument that uses mirrors to produce changing symmetrical patterns. Invented by the Scottish physicist Sir David Brewster Brewster, Sir David,... Explanation of kaleidoscope
While books remains the most popular category for Amazon, it is quickly growing its other categories and diversifying into new areas. Here's the top 10 things people bought in February of 2015, ranked according to the number of purchasers in each category. 10. Cosmetics and fragrances.
Amazon, or Amazon.com, is an online retail website considered the largest online retailer in the world. The company started off selling books and soon moved to movies. Eventually the catalog grew exponentially until the final product today, which sells just about any item a person could possibly want to buy.