Smog hanging over cities around the world is perhaps the most familiar and obvious form of air pollution. According to the World Health Organization, air
Michael McAlpine, a 3D printing pioneer at the University of Minnesota, in collaboration with Yong Lin Kong, a University of Utah mechanical engineering professor, have
Nearsightedness and farsightedness are eye conditions that can affect you at any stage of life. You need eyeglasses, contact lenses, or refractive surgery to correct