Complete the sentence.Light travels in ....
Straight lines
A thunderstorm with lots of lighting, wind, and thunder. given statement is true. fill in the blank (xiv). this happens because the speed of light is faster in air then that of the speed of sound. sapphire and opal. maybe the smoke is coming from your *** flying insects use the sun or the brightest light source as a reference for navigation. the sun or moon work nicely since they are a great distance away making the light rays, for all practical purposes (like navigation), parallel to each other. the insect observes the angle of the point of light as it starts its journey and returns simply by flying the reciprocal or opposite angle for the same length of time.

the problem for the insect comes when it uses a nearby source of light such as a light bulb as it navigates. the rays from a bulb are no longer strictly parallel since light is emitted from all points of a relatively large global surface of the bulb. as the insect tries to maintain a constant light-to-eye angle it has to make constant corrections by turning in flight. this results in a spiraling flightpath bringing it closer and closer to the bulb until they are, shall we say "overcome by the heat", or they run into the window glass. **bleep**… it was the powerline… duh! the first one. information is below.