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  2. 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 ...

  3. Rayon - Wikipedia

    en.wikipedia.org/wiki/Rayon

    Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose.

  4. Solar cycle 25 - Wikipedia

    en.wikipedia.org/wiki/Solar_cycle_25

    Solar cycle 24 (2008–2019) Solar cycle 25 is the current solar cycle, the 25th since 1755, when extensive recording of solar sunspot activity began. It began in December 2019 with a minimum smoothed sunspot number of 1.8. [ 2] It is expected to continue until about 2030. [ 3][ 4]

  5. Doomsday rule - Wikipedia

    en.wikipedia.org/wiki/Doomsday_rule

    The Doomsday rule, Doomsday algorithm or Doomsday method is an algorithm of determination of the day of the week for a given date. It provides a perpetual calendar because the Gregorian calendar moves in cycles of 400 years. The algorithm for mental calculation was devised by John Conway in 1973, [1] [2] drawing inspiration from Lewis Carroll ...

  6. 25 deals to dip into for National French Fry Day - AOL

    www.aol.com/news/23-deals-dip-national-french...

    Between July 12 — 14, the chain is giving new app users $5 off in-store using the code FRENCHFRY. Arby’s In honor of National French Fry Day, Arby’s rewards members can score $1 any size ...

  7. Shoppers over 50 love this anti-aging retinol stick and today ...

    www.aol.com/shoppers-over-50-love-this-anti...

    Velamo Advanced Retinol Eye Stick. $16 $30 Save $14. Shoppers in their 50s and 60s 'stick' it to dark circles and fine lines, thanks to this compact eye booster. $16 at Amazon.

  8. Calendar-based contraceptive methods - Wikipedia

    en.wikipedia.org/wiki/Calendar-based...

    A woman whose menstrual cycles ranged in length from 30 to 36 days would be estimated to be infertile for the first 11 days of her cycle (30-19=11), to be fertile on days 12–25, and to resume infertility on day 26 (36-10=26). When used to avoid pregnancy, such fertility awareness-based methods have a typical-use failure rate of 25% per year.

  9. Shop the best early Amazon Prime Day deals with savings ... - AOL

    www.aol.com/lifestyle/early-prime-day-deals-to...

    In less than a week, we'll officially be elbow-deep in Prime Day 2024 deals. The two-day event runs July 16 and 17, where you'll find drastically dropping prices on beauty, tech, home, outdoor and ...