Zinc selenide has a band gap of 2.58 eV. Over what range of wavelengths of visible light is it transparent?
Graphics: turn ideas into reality How do engineers solve a complex problem that no one else has solved 1 Generate ideas 2 Communicate ideas 3 Refine ideas 4 Document answers 5 Test 6 Repeat until problem is solved Graphics is the language of engineers Capture ideas Refine ideas Communicate ideas Document results Graphics Sketch Draw Simulation Computer aided design Drawing vs Sketching Drawing Uses drafting tools or a computer program Slower and detailed Includes everything needed for another person to fully define an object Sketching Usually freehand Quick, aids thinking and idea formation Includes sufficient detail to convey concept to another person Why sketch