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What are Birth Control Glasses?

Eyeglasses & Contacts, Health, Law & Government, Military, Vision Care /

Contraception or birth control refers to any method, medicine, or device used to prevent pregnancy. There are several types of birth control available to women. Some are more effective than others at preventing pregnancy. But have you heard about the military’s birth control glasses?  The “birth control glasses” was a nickname given for a very […]

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What is the Purkinje Effect?

Biological Sciences, Science /

Discovered by Jan Evangelista Purkinje, the Purkinje Effect was initially observed because of the changing colors of Jan’s favorite flower in his outdoor strolls. His simple speculations revolutionized the way we understand our vision now.  The Purkinje Effect describes the color-changing phenomenon in our vision when we’re in varying light conditions wherein color contrast changes

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