Well, in the 1960s, a guy by the name of John Costas was working on the Navy's extremely expensive sonar system. It wasn't working, because the ping they were using was inappropriate.
Bien, en la década de 1960, un hombre llamado John Costas trabajaba en el supercostoso sistema sonar de la Marina de EE.UU. El sistema no funcionaba porque el impulso sonoro que usaban no era adecuado.