The best fake tan and self-tanning products available. These tanning lotions, mousses and oils will leave skin with a healthy glow.

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges ...

Due to the complex terrain and variable soil conditions in hilly areas, traditional potato harvesters often face challenges such as high excavation resistance, insufficient soil disturbance, and high ...

Modern Mathematical Methods for Scientists and Engineers is a modern introduction to basic topics in mathematics at the undergraduate level, with emphasis on explanations and applications to real-life ...