Do noise canceling headphones really work?

Do noise canceling headphones really work? While noise-canceling headphones do a good job distinguishing between the audio a wearer wants to hear and the background noise he or she wants to keep out, some people say that they compromise sound quality by muffling sounds. That’s because noise-canceling headphones do more than reduce noise. How do […]

How does an iguana breathe?

How does an iguana breathe? Iguanas evolved one-way lungs surprisingly like those of birds, study finds. Whether birds are breathing in or out, air flows in a one-directional loop through their lungs. A main trunk in each lung splits into branches and twigs. Air flows in and out in a tidal fashion. Can iguanas fly? […]

Does man made mean leather?

Does man made mean leather? The expression “man made leather” is used in some English-speaking countries and only refers to imitation leather and not genuine leather. The term misleads about the fact that it is not leather. “Man made” sounds like craftsmanship but it’s just pure synthetic, mass-produced, material. What is man made leather made […]

What percentage of females are color blind?

What percentage of females are color blind? Globally, 1 in 12 males and 1 in 200 females are colorblind. Current research states that color blindness affects roughly 8 percent of Caucasian males. What percentage of Australians are Colour blind? The answer is that a quite surprising number of people are affected by colour blindness. In […]

Can you get braces even with cavities?

Can you get braces even with cavities? It’s not uncommon at all for a dentist to recommend braces or similar treatment after the cavities are addressed. Having straight, uncrowded teeth makes it much easier to maintain a healthy smile. However, a patient must have all of their cavities and gum problems dealt with before braces […]

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