Why do black circles appear?
When you do not sleep well for many nights and keep working hard, dark circles appear under your eyes. Some women even hide these circles with the help of make-up. According to doctors, fatigue and sleep deprivation. Deficiency slows down the blood circulation around our eyes, causing circles to appear.
Same cold drink but different in taste?
If you are fond of soft drinks, you may have noticed that the taste of soda drinks in cans is different from soda drinks in plastic bottles. While the company sells the same drink in both packaging - many people think that canned soda tastes a little lighter. One possible explanation is that the cans contain a polymer lining in aluminum that can absorb certain flavors. On the other hand, in the case of bottle shape, the taste is different because the plastic is a chemical - acetaldehyde - which also changes the taste.
Why are taxis and schools just yellow??
In most countries of the world, taxis and schools buses are just yellow and blue, but why is that? The reason is very simple: Yellow and blue has the ability to attract people faster than other colors - you can recognize this color even in the dark..
Why isnot the passport in orange or purple colour of any country??
You will never see a country's passport in orange or purple colour- the reason is that no country likes to choose a bright color for its passport because it does not represent official affairs and does not know the serious color.
Why don't we smile at picture of ID card??
Whenever we take pictures for passports, visas, or other important documents, our facial expressions are so normal that we even have to close our mouths. This is because of the biometric scanners that were introduced in 2005. Scanners can only recognize a person's face if it is in a normal state.
Why don't we smile at picture of ID card??
Whenever we take pictures for passports, visas, or other important documents, our facial expressions are so nor