Articles about: science
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From GPS satellites to volcano eruptions, discover simple science explanations for 8 of life's biggest questions about how our world works.
Airplanes stay in the air by generating lift through wings that redirect airflow, creating a pressure difference governed by the laws of physics.
Climate change is caused by the accumulation of greenhouse gases in the atmosphere, which trap heat and increase the Earth's surface temperature.
Solar panels convert sunlight into electricity using the photovoltaic effect, which allows semiconductor materials to generate current when exposed to light.
Grass is green because it contains chlorophyll, a pigment that absorbs red and blue light for photosynthesis while reflecting green light rays.
Sleep is a biological state essential for systemic physical restoration, neural waste clearance, and long-term cognitive and memory processing.
Dreaming is a complex neurological process during REM sleep where the brain generates involuntary imagery essential for memory and regulation.
The sky is blue because of Rayleigh scattering, where shorter blue wavelengths of sunlight are dispersed by gases in the Earth's atmosphere.