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How do bugs fly when the wind is blowing hard for them because they are smaller then us?


When bugs fly, the four forces of flight affect them, similar to an airplane.  If the wind is blowing too fast, then drag will pull the bug back with more force than thrust will push the bug forward. This will cause the bug to slow down. If the wind is too strong, then the bug will not be able to fly into the wind, but instead would have to fly with the wind at their back. For this reason, using a fan is seen as an effective way to protect from mosquito bites. 

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