Though all the technology discussed in the passages are very interesting and useful devices. The Dropsonde Hurricane Sensor seems to be the most useful for researchers and explorers today.
The 'Mailbox', discussed in the first passage, "sent powerful jets of water down curved metal tubes..The clear water flushes away 40ft. wide strips of sand on the murky ocean floor." (found under the picture near line 6). This machine helps people find underwater treasures. When it comes down to it, it's not as useful or advanced as the other inventions discussed. Treasure may give wealth, but that's not what's important. The 'LIDAR', discussed in the third passage, is a machine used for planes to measure distance through pulsed lasers and other data. The
The 'Mailbox', discussed in the first passage, "sent powerful jets of water down curved metal tubes..The clear water flushes away 40ft. wide strips of sand on the murky ocean floor." (found under the picture near line 6). This machine helps people find underwater treasures. When it comes down to it, it's not as useful or advanced as the other inventions discussed. Treasure may give wealth, but that's not what's important. The 'LIDAR', discussed in the third passage, is a machine used for planes to measure distance through pulsed lasers and other data. The