What the science says about shrinking focus, plus a quantum ‘thermometer’ that can take a reading inside a cell and a celebrity-whale rescue that went very wrong.

The term science describes any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

The history of science spans the majority of the historical record, with the earliest identifiable predecessors to modern science dating to the Bronze Age in Egypt and Mesopotamia (c. 3000–1200 BCE).

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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.

Explore investigations into the natural world with BBC Science. See cutting-edge research, studies, and investigative stories from around the planet.

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Adding teeth whitening toothpaste to your daily brushing routine is an excellent way to address discoloration caused by culprits such as coffee and wine.