Because its part of a bigger orginism that also had to bend to survive. If a tree were rigid and not able to bend, a strong wind or ice storm would injure or kill it. Having the ability to bend or be flexible allows it to sway with the wind. Its also another reason why some trees drop their leaves during the fall and winter. To protect the tree from wind damage.
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A stick bends because of the internal stress caused by external forces, such as bending or twisting. The fibers within the stick rearrange and deform to accommodate the applied force, allowing it to bend without breaking.
A thin stick is generally more flexible than a log due to its smaller size and narrower shape. Logs tend to be more rigid and less pliable compared to thin sticks, which can bend and flex more easily.
Dancing under a stick as low as you can is called "limbo." It is a fun party game where participants try to bend backward and pass under a stick without touching it or falling. It is often accompanied by music and is a popular activity at celebrations and events.
It depends how far you bend it.
Light changes direction when it moves between materials that have different densities, a phenomenon called refraction. However, within a single medium, light does not bend because it travels in straight lines according to the laws of physics.
the phenomenon of refraction. When light travels from one medium (such as air) to another medium with a different optical density (such as water), it changes speed and direction, causing the light rays to bend. This bending of light can make the stick appear broken or bent at the water's surface.