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  2. Joshua Silver - Wikipedia

    en.wikipedia.org/wiki/Joshua_Silver

    Joshua D. Silver is a British physicist whose discoveries have included a new way to change the curvature of lenses, with a significant application for the low-cost manufacture of corrective lenses and adjustable spectacles, especially in low-income countries.

  3. Adjustable-focus eyeglasses - Wikipedia

    en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

    Another type of opto-mechanical lens is the design of Joshua Silver, and uses liquid pressure against a diaphragm to control focus of a lens. [5] These lenses were meant to provide improved vision without prescription by an optometrist, since these professionals are in short supply in many countries.

  4. Talk:Adjustable-focus eyeglasses - Wikipedia

    en.wikipedia.org/wiki/Talk:Adjustable-focus...

    As the systems was designed as a classroom demonstration, its size was far too big for a real eyeglass. But it obviously demonstrated the same principle as is used by Joshua Silver. It may have been a standard classroom demonstration, but we were told that our school lab assistant himself had built it. So I am just wondering how old this idea is...

  5. Glasses - Wikipedia

    en.wikipedia.org/wiki/Glasses

    Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.

  6. 5 Things to Avoid When You Have Alopecia Areata - AOL

    www.aol.com/5-things-avoid-alopecia-areata...

    2. Excessive Stress. Stress is a natural, normal part of the human experience, and your body knows how to handle it. When you’re under stress, your body releases stress hormones that activate ...

  7. Josh Silver (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Josh_Silver_(disambiguation)

    Josh Silver or Joshua Silver may refer to: Josh Silver, American musician; Joshua Silver, British physicist; Josh Silver (nonprofit director), American nonprofit ...

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