Do you know how your glasses improve your vision? Find out with this video! 11/19/2016 • Polly
The first glasses appeared in Italy at the beginning of the 13th century. Today we use glasses not only as a method of eye vision correction, but also as a fashion accessory. Let's find out more about glasses, their history and the way they work!
And here are 7 little-known facts about glasses:
#1 In Africa, glasses are extremely expensive
In some African countries, average people have to spend their three months' salary to buy a pair of glasses!
#2 Most "glasses" today are actually made of plastic
Plastic makes spectacle lenses lighter and prevent them from breaking.
#3 Reading in dim light is not harmful to your eyes
Yes, it's a myth. Proper lighting only makes the process easier, but its reducing doesn't damage one's eyesight.
#4 Approximately 25% of the world's population require eyeglasses!
6 out of 10 people in the developed world wear glasses or contact lenses.
#5 The reading stone - a great-grandparent of glasses
This was a vision correction device used in 1000AD! The reading stome looked like a thin glass sphere and wasn't simple-to-use at all!
#6 People used to believe that wearing gold earrings would improve their vision
Sailors wore lots of them to have a perfect vision they needed while navigating! Today this superstition sounds super strange...
#7 Our brain can correct our vision
If you wore glasses which flipped images upside down, your brain would adapt and correct your vision in a few days, so you would see everything the right way up.
More about science on QuizzClub:
- How can overweight and obesity be prevented? Learn more about this major problem
- Find out why humans may have already reached their maximum lifespan
- 5 awesome science experiments you can do with your children at home
SHARE this article with someone who wears glasses!
Beauty of Science project has published a video showing how chocolate dragees M&M'S are dissolved in water in slow motion. The camera with macro effect and 4K resolution gives the impression that a real supernova explodes. It drew attention of publishing company PetaPixel. This is so fantastic!
Top 7 common health myths dispelled 12/13/2016 • Rroberts
Almost all of us believe in these myths and live keeping them in mind. Let's dispel the most popular myths once and for all!
If you agree that keeping the environment clean is important, then you'll like the thing that the Italians came up with. They developed a building consisting of eco-friendly materials that can purify the air.
If we have some health problem, we should listen to our body, because sometimes it may give us a sign of a serious disease. Let's see what health problems our eyes can tell us about.
Is everything you know really true? Can you see the difference between the truth and a lie? If at least 4 of these facts surprise you, we strongly recommend you to be more attentive while learning something new. Well, let's see if any of these will surprise you!