|
(Kelly of the Clue Crew shows a diagram of a ship & a submarine on the monitor.) To hide a warship's engine noises, Prairie/Masker technology on the ship creates waves of bubbles, an effective tactic for outwitting the passive type of this detection device |
sonar
DD
|
$2,000 |
J |
TECHNOLOGY |
2013-06-05 |
#6623 |
|
It was first developed as a means of detecting both icebergs & submarines |
sonar
|
$800 |
DJ |
SCIENCE & TECHNOLOGY |
1990-06-21 |
#1354 |
|
It was the Titanic sinking that inspired the invention of this iceberg & sub detector |
sonar
|
$500 |
J |
TECHNOLOGY |
1986-01-14 |
#352 |