We tend not to dwell on the fact that we exist in three dimensions. Forwards-back, left-right, up-down; these are the axes on which we navigate the world. When we try to imagine something else, it ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Many people think science is difficult and needs special equipment, but that’s not true. Science can be explored at home using everyday materials. Everyone, especially children, naturally ask ...

In 1828, German chemist Friedrich Wöhler synthesized urea from inorganic compounds, a substance previously thought only producible by living organisms. This groundbreaking experiment challenged the ...