These were the âBlue Bladeâ type that had a blue oxide finish, and that finish, in contact with an ordinary pencil âleadâ, made a point-contact rectifier. This served the purpose of the âcrystalâ and âcats whiskerâ of early crystal radios; it permitted current coming in from the antenna to flow in only one direction.
Age restrictions: To participate in the state lottery or horse track betting you must be 18 years old. To gamble in a casino or on a video poker machine, you must be 21. Casinos and Racetracks: Riverboat casinos are legal in Louisiana.
Must be 17 years old (16 years old if registering in person at the registrar of voters office or at the Louisiana Office of Motor Vehicles), but must be 18 years old to vote. 18 by next General Election (note: you can vote at age 17 in a primary, if you'll be 18 by the next General Election)