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.
it depends on the casino. some allow you to gamble at the age of 18 and other casinos you have to be 21. For example in southern california there is casino morongo which is an indian casino and there you can gamble at 18. but theres also pechanga in temecula ca and you have to be 21 there. so just ask before you go to the casino. BLAH423578 Â· 9 years ago.