Animal echolocation extremely narrow beams and many receivers to localize a target (multibeam sonar), animal echolocation has only one transmitter and two receivers (the ears) positioned slightly apart. The echoes returning to the ears arrive at different times and at different loudness levels, depending on the position of the object generating the echoes. The time and loudness differences are used by the animals to perceive distance and direction. With echolocation, the bat or other animal can see not only where it is going but also how big another animal is, what kind of animal it is, and other features.. At the most
A Trillion Feet of Gas a select Senate committee to look into lobbying practices. The deregulation bill passed anyway, although President Eisenhower vetoed it on February 17. In the fictional discussion of these events, as Updike portrays it, Mr. Born claims that he is in possession of a trillion feet of natural gas that he has no incentive to sell unless some similar bill is passed in the next session of Congress and signed. On their way home, the Forrests and Mr. King are a bit confused. They wonder how many zeros are in a trillion — American and UK conventions on that differed —