A small portable device featuring timer, clock, and calendar functions, equipped with a simple and functional interface and a truly long battery life.

LED bulbs come with big promises, like energy savings and lights that will last for years of use without burning out like old incandescents. Many of those promises are true, but we bet you've noticed ...

Plant responses to light are multiple. Light is an energy source, converted to sugars by photosynthesis. It is also a signal sensed by specific photoreceptors for red, blue and UV-B radiation. Absence ...