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Zinc and vitamin D are also essential for bone health but have the added benefit for men over 50 by reducing the risk of erectile dysfunction, a condition commonly affecting men over age 40 ...
5 Fish Oil Benefits for Men’s Intimate Health Omega-3 fatty acids have been studied for their potential intimate health benefits in recent years. There’s reason to believe it can (or could ...
Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency.The distinction between efficacy and efficiency is not always carefully maintained in published sources, so it is not uncommon to see "efficiencies" expressed in lumens per watt, or "efficacies" expressed as a percentage.
At the time the UK established candlepower as a unit, the French standard of light was based on the illumination from a Carcel burner, which defined the illumination that emanates from a lamp burning pure colza oil (obtained from the seed of the plant Brassica campestris) at a defined rate. Ten standard candles equaled about one Carcel burner.
Luminous toxin is a descriptive term for an actual poison. — Technical Adviser, Edward F. Dunne, M.D.") However, after I have searched the web and Wikipedia for "luminous toxin" and only found references to it in articles related to the film (no scientific/medical articles), I am starting to wonder whether "luminous toxin" is real or not.
By definition, light at a frequency of 5.4 × 10 14 hertz (λ = 555.17. . . nm) has a luminous efficacy of 683 lm/W. The wavelengths for when a person is in photopic vary with the intensity of light. For the blue-green region (500 nm), 50% of the light reaches the image point of the retina. [2]
Research conducted by Indiana University's Center for Sexual Health showed that using lube makes it 50% easier for both men and women to orgasm. And it makes sense, too: according to Elist, lube ...
Luminous intensity is the perceived power per unit solid angle. If a lamp has a 1 lumen bulb and the optics of the lamp are set up to focus the light evenly into a 1 steradian beam, then the beam would have a luminous intensity of 1 candela.
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