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2. Bicycle lighting - Wikipedia

   en.wikipedia.org/wiki/Bicycle_lighting

   Red light on the back of a bicycle Early bicycle lighting: candle lamps, oil lamps and carbide lamps Early bicycle lamps and two early bottle dynamos (1935). Bicycle lighting is illumination attached to bicycles whose purpose above all is, along with reflectors, to improve the visibility of the bicycle and its rider to other road users under circumstances of poor ambient illumination.

3. Color wheel (optics) - Wikipedia

   en.wikipedia.org/wiki/Color_wheel_(optics)

   An 1895 mechanical color wheel, used for experiments with color vision A mechanical four-petal (red, green, blue, white) color wheel inside a 1998 digital light processing (DLP) video projector A color wheel or other switch for changing a projected hue (e.g., for an optical display) is a device that uses different optics filters or color gels ...

4. The Bicycle Wheel - Wikipedia

   en.wikipedia.org/wiki/The_Bicycle_Wheel

   The book is made up of three parts. Part one, "Theory of the Spoked Wheel", examines how a wire wheel supports various loads, what causes wheel failure, what aspects of a wheel confer strength and durability, discusses each of the individual components that make up a spoked wheel, and examines wheel design.

5. Is Walmart's self-checkout changing? Here's what to know - AOL

   www.aol.com/news/walmarts-self-checkout-changing...

   The recent self-checkout issues have led some to speculate that companies are adjusting access to their self-serve stations in response to customers forgetting to scan or pay for their items, as ...

6. Color wheel - Wikipedia

   en.wikipedia.org/wiki/Color_wheel

   A color wheel or color circle [1] is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc. Some sources use the terms color wheel and color circle interchangeably; [ 2 ] [ 3 ] however, one term or the other may be more prevalent in ...

7. AOL Mail

   mail.aol.com/d?reason=invalid_cred

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!