资讯

This is what makes you see yourself every time you stare into a mirror. A mirror is thus not one material but two. Both the glass (of shy electrons) and metal (of unruly electrons) conspire to ...
All three elephants displayed unusual, self-directed behavior in front of the mirror ... hay in front of the reflection, often swinging the bales as though testing the image.
A virtual image cannot be formed on a screen. It can only be seen by looking into the mirror. If a surface is rough, diffuse reflection happens. Instead of forming an image, the reflected light is ...
Reflection is a type of transformation. To reflect an object, you need a mirror line. When a shape is reflected, its size does not change - the image just appears 'flipped'. Every point on the ...