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Temperature vs time plots, showing the Mpemba Effect. The Mpemba effect is the name given to the observation that a liquid (typically water) that is initially hot can freeze faster than the same liquid which begins cold, under otherwise similar conditions.
While the cold weather may deter many from going outside, others like to take advantage of the freezing temperatures and test out different science experiments. From blowing frozen bubbles to ...
Hot cognition is a hypothesis on motivated reasoning in which a person's thinking is influenced by their emotional state. Put simply, hot cognition is cognition coloured by emotion. [1] Hot cognition contrasts with cold cognition, which implies cognitive processing of information that is independent of emotional involvement. [2]
In the scientific community, there was a debate about how objects cooled and in 1461 Marliani confirmed that he had experimentally observed hot water freezing faster than cold water. In his experiment he stated that he had used four ounces of unheated water and four ounces of boiled water, which he placed in similar containers outside on a cold ...
The exact stimulus for this output is not understood, but it is known that freezing cold temperatures causes an influx of water to the leaf petiole. As the turgor pressure increases, the leaves roll up, making it tighter to the stem. The leaf also droops perpendicular to the ground. There are predictions on the mechanism of this behavior.
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The biggest thing to keep in mind, however, is that this hack works best when the spray bottle is kept inside your house or office when not in use to keep the contents from freezing.
Hot Dr Pepper began as a marketing tactic in 1958 to maintain sales during the colder months, the museum confirmed in the video's comment section. Read the original article on People Show comments