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.
J.R. Smith will become an unrestricted free agent this summer, cleveland.com reports. CLEVELAND, Ohio - Cleveland Cavaliers sharpshooter J.R. Smith will allow his player option deadline of June 16 to pass in order to become a unrestricted free agent this summer, league sources informed cleveland.com. Sources with knowledge of the situation spoke on the condition of anonymity due to sensitive nature of the timing.