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Geoengineering, the science of intentionally altering the Earth’s climate to combat environmental hazards, is being considered by some researchers as a viable method to reduce global warming. Particles would be released into the atmosphere to block some of the sun.

Blocking the sun may reduce global warming

Researchers look into geoengineering to reduce global warming. Geoengineering is intentionally altering the Earth's climate to combat environmental hazards.

Research on the brain has concluded that humans represent all non-human objects in terms of three classes or dimensions.

Research reveals how brain arranges nouns

Recent research shows the brain categorizes nouns using three different classes, and traces origins to early human evolution.

Ondine, who fell in love with a mortal, cursed him upon learning that he was unfaithful. He would stop breathing if he slept. This has basis in real life and is known as congenital central hypoventilation syndrome, which affects patients’ involuntary breathing.

Health Talk: Congenital central hypoventilation syndrome

This disorder affects involuntary breathing in patients; when asleep, their breathing is abnormally slow and shallow, which is known as hypoventilation.

Destructive interference is the basis of noise-cancelation. The diagram shows two waves, in the top and bottom line, which can overlap and cancel as seen in the middle line. This can apply to sound waves.

How Things Work: Noise-canceling headphones

Learn about the science behind sound, and how it is possible to create noise-canceling headphones.

SciTech Briefs

Energy drinks have been shown to alter blood pressure and blood vessel function, increasing heart attack risk.

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