In many cases, a small object (such as a hard piece of stool) blocks the opening to the appendix.

If a door was stuck open, or a passenger or other object blocked the door, the motors could not be started.

If one object partially blocks the view of another object, humans perceive it as closer.

Such an object would blast dust high into the atmosphere and block the sunlight for two or three months.

It's produced when an object blocks the path of blood and is then removed.

However, if an object blocked the infrared beam, communications would be cut off.

The circular object blocks a certain number of Fresnel zones.

At this age, children also recognize the importance of eyes for seeing and that physical objects can block sight.

A place is called in the shade when the sun is shining, and some object, a tree for example, blocks the direct sunlight.

If any object blocks the line of sight between computers, the signal is interrupted and data can be lost.