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  2. Sail area-displacement ratio - Wikipedia

    en.wikipedia.org/wiki/Sail_Area-Displacement_ratio

    The sail area-displacement ratio (SA/D) is a calculation used to express how much sail a boat carries relative to its weight. [1]/ = [() /] = () In the first equation, the denominator in pounds is divided by 64 to convert it to cubic feet (because 1 cubic foot of salt water weights 64 pounds).

  3. 1/2 + 1/4 + 1/8 + 1/16 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%2B_1/4_%2B_1/8_%2B_1/...

    Achilles would then have to move 5 meters, where the tortoise would move 2.5 meters, and so on. Zeno argued that the tortoise would always remain ahead of Achilles. Similarly, Zeno's dichotomy paradox arises from the supposition that to move a certain distance, one would have to move half of it, then half of the remaining distance, and so on ...

  4. Propeller theory - Wikipedia

    en.wikipedia.org/wiki/Propeller_theory

    The essence of the actuator-disc theory is that if the slip is defined as the ratio of fluid velocity increase through the disc to vehicle velocity, the Froude efficiency is equal to 1/(slip + 1). [2] Thus a lightly loaded propeller with a large swept area can have a high Froude efficiency.

  5. D-1 visa - Wikipedia

    en.wikipedia.org/wiki/D-1_visa

    The D-1 visa is a non-immigrant visa which allows travel to the United States for those serving as a crewman on marine vessel or aircraft, who will depart the US on the same vessel on which they arrived. [1] Those who will depart on a different vessel would normally instead qualify for a D-2 visa.

  6. Postpartum Weight Loss: 3 Steps to Get Started (& More Tips ...

    www.aol.com/postpartum-weight-loss-3-steps...

    1. Eat Nutritious Foods. A healthy eating plan is the cornerstone of any weight loss journey. Eating nutritious foods can also help you avoid postpartum weight gain. Opt for whole foods full of ...

  7. What Happens When You Take Viagra While Drinking Alcohol?

    www.aol.com/lifestyle/happens-viagra-while...

    1.5 ounces of 40% ABV spirits, such as rum, vodka, gin or whiskey. In other words, a beer or two throughout a night out with your friends or a date isn’t likely to cause any issues if you plan ...

  8. S-75 Dvina - Wikipedia

    en.wikipedia.org/wiki/S-75_Dvina

    SA-75 Dvina (Двина) (NATO codename SA-2) with Fan Song-A guidance radar and V-750 or V-750V missiles. Initial deployment began in 1957. Initial deployment began in 1957. The combined missile and booster was 10.6 m (35 ft) long, with a booster having a diameter of 0.65 m (26 in), and the missile a diameter of 0.5 m (20 in).

  9. Commonwealth leaders say 'time has come' for discussion on ...

    www.aol.com/news/king-charles-queen-camilla...

    APIA, Samoa (Reuters) -Commonwealth leaders, ending a week-long summit in Samoa, said on Saturday the time had come for a discussion on whether Britain should commit to reparations for its role in ...