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  2. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    Sanctuary. Atlantic. Elektra. EastWest. Musical artist. Website. rayj .com. William Ray Norwood Jr. (born January 17, 1981), [1] known professionally as Ray J, is an American R&B singer, songwriter, television presenter, and actor. Born in McComb, Mississippi and raised in Carson, California, he is the younger brother of singer and actress Brandy.

  3. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    In the United States a longer duty cycle is used, 50% for battery-powered buoys (20 seconds on, 20 seconds off) and 75% for on-shore beacons. Ramarks are wide-band beacons which transmit continuously on the radar bands without having to be triggered by an incoming radar signal. The transmission forms a line of Morse characters on the display ...

  4. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor ...

  5. Earliest known photograph of a US first lady acquired by ...

    www.aol.com/earliest-known-photograph-us-first...

    The NPG bought the Madison photograph for $456,000 at a Sotheby’s auction of books, manuscripts and Americana on June 28, more than six times the lot’s high estimate of $70,000. The funds were ...

  6. File:ORD Airport Diagram.pdf - Wikipedia

    en.wikipedia.org/wiki/File:ORD_Airport_Diagram.pdf

    File:ORD Airport Diagram.pdf. Size of this JPG preview of this PDF file: 390 × 599 pixels. Other resolutions: 156 × 240 pixels | 313 × 480 pixels | 806 × 1,237 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.

  7. File:The Periodic Table of the Elements in Pictures.pdf

    en.wikipedia.org/wiki/File:The_Periodic_Table_of...

    The Periodic Table of the Elements in Pictures.pdf. English: This pictorial periodic table is colorful, boring, and packed with information. In addition to the element's name, symbol, and atomic number, each element box has a drawing of one of the element's main human uses or natural occurrences. The table is color-coded to show the chemical ...

  8. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  9. Prices fell in June for the first time since the start ... - AOL

    www.aol.com/prices-fell-june-first-time...

    Core goods prices fell on a monthly basis by 0.1% and are down 1.8% for the 12 months ended in June, according to Thursday’s BLS report. Food prices saw a modest uptick last month, rising 0.2% ...