Which year is known as Einstein’s wonderous year?

Albert Einstein is perhaps the most famous scientist in history. He was a true “rock star” scientist, known around the world for his theory of general relativity, which revolutionized our understanding of gravity. Not surprisingly, he was awarded the Nobel prize in 1921, but it wasn’t for general relativity. It was for a completely different work he published in 1905, the year known as Einstein’s annus mirabilis, or wonderous year.

In 1905 Einstein published four groundbreaking papers. Each one was a revolutionary work that changed our understanding of the universe. None of them were about gravity. Einstein’s most famous work wasn’t published until 1915, and one could argue that it wasn’t nearly as revolutionary as his 1905 papers.

So this week we’ll look at Einstein’s annus mirabilis papers:

1. Brownian Motion, which settled the debate over the existence of atoms, and laid the foundation for a new field of work known as statistical mechanics.

2. The Photoelectric Effect, which demonstrated the particle aspects of light, and led to the quantum theory of matter.

3. Special Relativity, which overturned a model of space and time that had stood for millennia.

4. Mass-Energy Equivalence, which connected matter and energy, and led us to a true understanding of the stars.

Although the photoelectric effect is specifically noted in his Nobel prize award, one of these papers would have been worthy of note.