Glasses factsWine quiz
Which of the following is the worst for eyesight during a sunny day?
Wearing sunglasses without UV filter causes the pupils to dilate and eyes to absorb more UV rays than they normally would without the sunglasses. Hence, it's much better not to wear sunglasses at all, than to wear ones without UV filter.
What is the easiest way to see this photo in 3-D?
Use red and cyan glasses. This is anaglyph 3D, an image which contains two differently filtered colored images, one for each eye. Red/Cyan channels are the most common, but Magenta/Green and Blue/Yellow are also popular.
What company makes glasses called Spectacles?
Just Snap. Snapchat is a multimedia messaging app used globally, created by Evan Spiegel, Bobby Murphy, and Reggie Brown, former students at Stanford University, and developed by Snap Inc., originally Snapchat Inc.