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When do you use yoked prism?

When do you use yoked prism? Yoked prisms are used during vision therapy for a variety of vision conditions: Strabismus (crossed-eyes) Motion sickness. Vestibular disorders. Drooping eyelid (ptosis) Learning disabilities. Adapting to multifocal lenses. Head trauma or brain injury. What Read more…

What was GSLV fat boy?

What was GSLV fat boy? Nicknamed ‘Fat boy’ by the ISRO scientists, GSLV Mk-III rocket is considered to be India’s most powerful rocket weighing 640 tonnes. Chandrayaan-II consists of an orbiter, a lander and a rover together referred to as Read more…