Einstein CentennialExplainer
Is the Universe Truly Random?
A rolled die is unpredictable but not mysterious. Quantum events may be different. Here is where science draws the line, and where the debate begins.
SECTION
Einstein Centennial.
What did a 1926 letter change?
1926–2026: one hundred years since Einstein told Max Born that “the Old One” does not throw dice. The letter, the debate and the experiments that followed.
Einstein CentennialExplainer
How Scientists Tested Einstein’s Hunch
Einstein suspected quantum physics was hiding something. John Bell found a way to check, and decades of experiments gave a clear answer, with limits.
Einstein CentennialExplainer
What Is Quantum Entanglement, and Why Did Einstein Call It Spooky?
Two particles can share one quantum state, even far apart. Here is what that means, why Einstein distrusted it, and why it still cannot carry a message.
Einstein CentennialExplainer
Einstein vs. Bohr: The Debate Over What Quantum Physics Says Is Real
Einstein and Bohr agreed that quantum mechanics works, but they spent decades arguing about what it tells us is real, and the argument still echoes today.
Einstein CentennialFeature
The Dice Letter at 100: How One Sentence Shaped a Century of Physics
A century ago, Einstein told Max Born that "the Old One" does not throw dice, starting an argument that reshaped physics and is still not finished.