onosa (25)in #fyp • 13 hours agoWhy can't helicopters be silent?Rotor Noise Aerodynamic Noise from the Main Rotor: The main source of helicopter noise is the rotation of the rotor…onosa (25)in #fyp • 16 hours agoBeach Vacation Essentials: Enjoy Your Summer Worry-Free!The beach is the perfect getaway to escape the hustle and bustle of the city during the summer, but before you dive…onosa (25)in #cn • 2 days ago我以为厦门已经很美了知道去了泉州给大家分享下旅途中的美好 . 泉州旅行的后劲真的太大了~ 闽南红砖厝, 古建双塔,海天佛国 逛庙宇、串巷子、看历史留下的痕迹 慢下来才能真正体会这座小城的魅力 也让我明白这座城市的“半城烟火,半城仙” .…onosa (25)in #cn • 2 days agoEnglish guide to Nanxun Ancient Town, ChinaNanxun Ancient Town is a place I have been looking forward to for a long time. It satisfies all my fantasies about…