Lasers can cause damage in biological tissues, both to the eye and to the skin, due to several mechanisms. Thermal damage, or burn, occurs when tissues are heated to the point where denaturation of proteins occurs. Another mechanism is photochemical damage, where light triggers chemical reactions in tissue.
March 9: Teams are allowed to begin negotiating with other teamsâ players who are set to become unrestricted free agents at the end of the league year. This is the first time the NFL is providing a window to negotiate with other teamsâ free agents prior to the start of free agency.
That being said, youâre probably asking yourself: So when does this fun all start? Well, the 2015 NBA Free Agency period will officially begin on July 1, where the free agents will begin negotiating with the teams; this is the first day theyâre allowed to do so. However, a player cannot officially ink his name on the dotted line with a team until July 8. Utah Jazz offseason review2h ago.