How Does a Fish Swim?
How Does a Fish Swim? A fish swims by curving its body from side to side, stretching or expanding their muscles on one side of their body, while relaxing the muscles on...
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What Is a Hoverboard?
A hoverboard (or hover board) is a fictional levitating board used for personal transportation, first described by author M. K. Joseph in 1967 and popularized by the...
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