The use of an RGB CCD digital camera could be an alternative method, since it contains filters that work between 600 to 700 ηm (red) and 500 to 600 ηm (green). In this case, a simple inexpensive ...

Abstract: We fabricate honeycomb and related photonic lattices in a nonlinear crystal with a simple method that is based on the optical Fourier transformation through an amplitude mask (six-hole ...

I work with clients on keeping a daily journal ... who didn’t drink water before meals — and they kept it off. This simple tip works in two ways. Thirst can mask itself as hunger, causing ...