Some lasers emit radiation in the form of light. Others emit radiation that is invisible to the eye, such as ultraviolet or infrared radiation. In general, laser radiation is not in itself harmful, and behaves much like ordinary light in its interaction with the body.
Hurricane Katrina is arguably the most notorious storm of the 21st century. The storm made landfall as a Category 5 near Miami before striking Louisiana as a Category 3 storm. Katrina was the third deadliest, and costliest hurricane in US history with more than 1,200 deaths and $108 billion in damage.
Seasonal Records Set in 2005. 1  Most tropical storms: 28. 2  Most hurricanes: 15. 3  Most Category 5 hurricanes: 4 (Emily, Katrina, Rita, and Wilma). 4  Most hurricane names to be retired: 5 (Dennis, Katrina, Rita, Stan, Wilma, and possibly others).  Most major hurricanes to hit the U.S.: 4 (Dennis, Katrina, Rita, Wilma).