TECHSPECÂ® Barium Fluoride (BaF 2) Windows can be used in a variety of applications, such as infrared spectroscopy, due to their wide broadband transmission that extends from the deep ultraviolet to the long-wave infrared.
62.16 acres Holy Cross, IA 62 acres of prime hunting ground in Dubuque County. Native grasses, wildflowers, and food plots create an oasis for whitetail, turkey, and pheasants to thrive.
A Catholic nun uses ash to mark a cross on the forehead of a child in observance of Ash Wednesday at The Redemptorist Church at suburban Paranaque city south of Manila, Philippines Wednesday, Feb. 18, 2015.