General Science

Humans continue to evolve through processes such as natural selection, driven by environmental changes and genetic mutations, influencing traits like lactase persistence and height variation.

TL;DR: Evolution is both a fact and a theory; it's a fact that evolution occurs and a theory explains how it happens.

Friction is a force resisting the relative motion of interacting surfaces or elements, affected by material characteristics, surface roughness, and applied force.

TL;DR: In photosynthesis, plants use sunlight to convert CO2 and water into oxygen and glucose, fueling their growth and releasing oxygen.

Heat naturally flows from hotter to colder objects until their temperatures equalize.

The ancient Greeks proposed Earth was round, Columbus voyaged expecting this, and space missions confirmed it.

Delve into the intricate architecture of scientific theories, from hypotheses to models and laws. Discover the transformative power of scientific explanation.

The potato originated in South America, spread to Europe, and played key roles in historical events like the Irish Potato Famine.