Question

1.Чому літак під час польоту,дивлячись в ілюмінатор на безхмарне небо,ми не відчуваємо,що літак летить?2.Чому коли струшуємо мокру парасольку,з неї злітають краплі води?

Answer 1

1.Переiщення в просторi вiдчувати можливо вiдносно iнших будь яких предметiв. У безхмарному небi вони вiдсутнi.

2.Вода утримуеться у краплях завдяки поверхняному натягу рiдини.

 

Answer 2

Why don't we feel the airplane moving when looking out the window at the clear sky during a flight?

When we are inside an airplane and looking out the window at the clear sky during a flight, we often don't feel the sensation of movement because our bodies are not directly connected to the external environment. Our sense of motion is primarily based on the perception of forces acting on our bodies, such as gravity and contact with the ground. In an airplane, these forces are balanced and we experience a sensation of weightlessness, similar to being in an elevator that is smoothly ascending or descending.

Additionally, the speed at which an airplane travels is typically constant and the changes in velocity are gradual and smooth. This lack of sudden acceleration or deceleration further contributes to the absence of a noticeable sensation of movement. Our visual perception also plays a role in this phenomenon. When we look out the window, the distant objects in the sky appear relatively stationary, creating an illusion of stillness.

It's important to note that while we may not feel the movement of the airplane, there are other cues that can indicate motion, such as changes in engine noise, vibrations, or the movement of objects inside the cabin. However, these cues are often subtle and may not be as prominent as the visual cues that suggest stillness.

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