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Superheating is an exception to this simple rule; a liquid is sometimes observed not to boil even though its vapor pressure does exceed the ambient pressure. The cause is an additional force, the surface tension, which suppresses the growth of bubbles. [4] Surface tension makes the bubble act like an elastic balloon.
Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...
Humans adapted to heat early on. In Africa, the climate selected for traits that helped them stay cool. Also, humans had physiological mechanisms that reduced the rate of metabolism and that modified the sensitivity of sweat glands to provide an adequate amount for cooldown without the individual becoming dehydrated. [17] [20]
The study suggests that finger length has an effect on physical attraction because it gives indication of the desirable sex-hormone dependent traits which one may possess. [111] Another study found that averageness, healthiness of the skin, how fat the hands appear to be, and the grooming of the hands, all affect the attractiveness of hands. [113]
Strong-willed kids can have deep emotions, a trait that might not stop when they hit adulthood. "They may express and feel their emotions very strongly, which can be good for some but sometimes ...
While many of the world's wealthiest people have earned their riches in drastically different ways, they all share 10 traits. The top 10 traits that all billionaires have in common Skip to main ...
As stated above, false uniqueness effect can be seen mostly for desirable or flattering traits and being “better than average”. In believing that people are relatively unique and better than others, they are able to enhance or at least maintain their self-esteem.
Over on Quora, more than 100 people have answered the question "What are the common traits of highly intelligent people?" Some users claim to know from personal experience (so humble); others are ...