Answer: Passive solar technology
Explanation:
Passive solar technology is the method of using materials to attract sunlight for warmth. Solar energy is the energy that comes from the sun. To store this energy gotten from the sun you'll need some elements to transfer this energy then store them. According to the passage the individual used a black material (black material is used for conveying and storing heat, it's one of the best form for doing so), the black material and the water helps warm the water needed for the individual after his hiking which actually worked.
Answer:
His expectation might have influenced the result
Explanation:
Hermann Ebbinghaus was the first psychologist who works on the systematical study of learning and memory carrying out by long exhaust experiments on himself. He argued that remembering is associated with the linking place, memory, time, cause, and effect. He tries to find out the effect of the association on memory, recording and mathematically see the pattern of memory to follow the aspect of the association. He tested different lengths and different leaning intervals, noting the speed of learning and forgetting. He found that he could remember meaningful materials such as poem ten times than his nonsense syllables. He also noted that more time the stimulus repeated, fewer times the times taken to reproduce the memorized information. Even the first few repetitions show the effect of memorization.
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