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2. AOL Mail is free and helps keep you safe.

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   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!

3. Reversed-phase chromatography - Wikipedia

   en.wikipedia.org/wiki/Reversed-phase_chromatography

   Reversed-phase liquid chromatography ( RP-LC) is a mode of liquid chromatography in which non-polar stationary phase and polar mobile phases are used for the separation of organic compounds. [1] [2] [3] The vast majority of separations and analyses using high-performance liquid chromatography (HPLC) in recent years are done using the reversed ...

4. Reverse graffiti - Wikipedia

   en.wikipedia.org/wiki/Reverse_graffiti

   Reverse graffiti [note 1] is a method of creating temporary or semi-permanent images on walls or other surfaces by removing dirt from a surface. It can also be done by simply removing dirt with the fingertip from windows or other dirty surfaces, such as writing "wash me" on a dirty vehicle. Others, such as graffiti artist Moose, use a cloth or ...

5. Reverse image search - Wikipedia

   en.wikipedia.org/wiki/Reverse_image_search

   A visual search engine is a search engine designed to search for information on the World Wide Web through a reverse image search. Information may consist of web pages, locations, other images and other types of documents. This type of search engines is mostly used to search on the mobile Internet through an image of an unknown object (unknown ...

6. Gibbs free energy - Wikipedia

   en.wikipedia.org/wiki/Gibbs_free_energy

   The Gibbs free energy change ( , measured in joules in SI) is the maximum amount of non-volume expansion work that can be extracted from a closed system (one that can exchange heat and work with its surroundings, but not matter) at fixed temperature and pressure. This maximum can be attained only in a completely reversible process. When a system transforms reversibly from an initial state to a ...

7. Reverse Freedom Rides - Wikipedia

   en.wikipedia.org/wiki/Reverse_freedom_rides

   Reverse Freedom Rides. Reverse Freedom Rides were attempts in 1962 by segregationists in the Southern United States to send African Americans from southern cities to mostly northern, and some western cities by bus. [1] [2] They were given free one-way bus tickets, and were promised guaranteed high-paying jobs and free housing.