[Oneironaut] explores different light sources and different materials in depth, along with great pictures to show his results. This is a great resource if you’re needing to do some night vision ...

Shadow puppets, made of cardboard or paper, are another example of materials that can produce shadows when held in front of a light source. Translucent materials, such as tissue paper or a stained ...

White-light sources based on reliable and energy-efficient ... It is possible to generate light in semiconductor materials (such as GaN or AlInGaP) by injecting electrons into the conduction ...

Wearing reflective materials helps other people to see you in the dark; however, they will only work when a source of light - such as a torch, lamp or candle - reflects off them. Students could ...

Physicists in the US, Europe and Korea have produced a long-lasting light-driven magnetic state in an antiferromagnetic material for the first time. While their project started out as a fundamental ...