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 will sell you groceries, one way or another. Case in point: The day before it announced plans to buy Whole Foods for a cool $13.7 billion, it released Amazon Dash Wand, a small Alexa-powered gadget that will likely be just as integral to the companyâs produce push. Amazonâs new scanning stick is Jeff Bezosâs latest attempt to link the virtual world with the physical one.