Visually and aurally experience the satisfying video of colorful soaps being sliced. Each cut is smooth and creates a truly oddly satisfying visual, showcasing different shapes within. Enjoy the soap ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Seasonal affective disorder can disrupt your mood and sleep. We explain how light ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› by Rachel Wharton Whether you want a big, feature-rich refrigerator or a smaller, ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.