Physics — pacovalverde.es

• Earth’s orbital motion

  A question about orbital shape and perspective turned into a visual explanation.

• The useful life of light bulbs

  What a home experiment with LEDs and compact fluorescents taught, and what we know about lifetime today.

• Technical and scientific notes

  A historical collection of study notes and materials.

• Introduction to astronomy

  Accessible resources for exploring the solar system and universe.

• SciSymbols

  An interactive visual atlas of scientific symbols and notation.