Daily GK Quiz Game 463
Test # 463
[08-Apr-2025]
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Fact
Boiled grape juice was the fluid used as a lubricant for the first contact lenses. Eugene Flick, who invented contact lenses in 1887, chose boiled grape juice over sugar water to lubricate the thick glass lenses that covered the entire eye. .. More >>
Boiled grape juice was the fluid used as a lubricant for the first contact lenses. Eugene Flick, who invented contact lenses in 1887, chose boiled grape juice over sugar water to lubricate the thick glass lenses that covered the entire eye. .. More >>
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The largest human organ is the skin, with a surface area of about 25 square feet. .. More >>
The largest human organ is the skin, with a surface area of about 25 square feet. .. More >>
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