This easy-to-build walking reindeer can be constructed with only a bow motor, battery, wires, and a few other parts.

Sewickley’s most wonderful time of the year is fast approaching. Light Up Night is set for 5-8:30 p.m. Dec. 5. Thousands are expected to pack the borough’s business district for the holiday ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Rosenston is a fact-checker and researcher with expertise in business, finance, and ...

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 ...