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2. 73 best discounts for ages 50+: Where to save money for ... - AOL

   www.aol.com/finance/best-senior-discounts...

   Joann Fabrics — 15% discount every day, depending on the location; 15% extends to military and veterans. Michaels — 10% off every day, including sale items. Ross Dress for Less — 10% ...

3. Book banning in the United States (2021–present) - Wikipedia

   en.wikipedia.org/wiki/Book_banning_in_the_United...

   Outcome. Banning of thousands of books from school libraries in many states. Starting in 2021, there have been a considerable number of books banned or challenged in parts of the United States. Most of the targeted books have to do with race, gender, and sexuality. Unlike most book challenges in the past, whereby parents or other stakeholders ...

4. Shockley–Queisser limit - Wikipedia

   en.wikipedia.org/wiki/Shockley–Queisser_limit

   The Shockley–Queisser limit for the efficiency of a solar cell, without concentration of solar radiation. The curve is wiggly because of absorption bands in the atmosphere. In the original paper, [1] the solar spectrum was approximated by a smooth curve, the 6000K blackbody spectrum. As a result, the efficiency graph was smooth and the values ...

5. X-ray fluorescence - Wikipedia

   en.wikipedia.org/wiki/X-ray_fluorescence

   X-ray fluorescence. XRF scanning of the Rembrandt -painting Syndics of the Drapers' Guild. A handheld XRF analyzer gun. X-ray fluorescence ( XRF) is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays.

6. The Singularity Is Near - Wikipedia

   en.wikipedia.org/wiki/The_Singularity_Is_Near

   The Singularity Is Near: When Humans Transcend Biology is a 2005 non-fiction book about artificial intelligence and the future of humanity by inventor and futurist Ray Kurzweil . The book builds on the ideas introduced in Kurzweil's previous books, The Age of Intelligent Machines (1990) and The Age of Spiritual Machines (1999).

7. These are the best Walmart deals to shop this week - AOL

   www.aol.com/lifestyle/the-25-best-walmart-deals...

   There are tons of deals to shop this week, including $230 off a cordless vacuum, a 65-inch Samsung TV for under $400, and a Drew Barrymore collection slow cooker for just $50.