A low-cost refracting telescope , it was one of the first to feature meade 's autostar technology , which automatically locates more than 1400 celestial objects .
The other team used an oxide template to grow silver nanowires inside porous aluminum oxide . The spacing between the wires was smaller than the wavelength of visible light . This device works in the visible spectrum , refracting light .
A solar spike seen on the morning of december 7th in allegan , michigan.the sight id caused by wintery ice crystals in the earth 's upper atmosphere refracting light from the sun
日柱摄于12月7日的早晨密西根州阿勒甘地区.它是由地球大气层顶部冰晶体折射太阳光而形成的.
A brief introduction to domestic research of negative refracting materials is given , and two possible routes to negative refracting via functional polymeric materials are suggested .
