Charles Darwin had a problem with human faces. Not his own, though his enormous beard certainly obscured most of it by the 1870s. The problem was scientific. Darwin believed that human emotions – fear, joy, anger, disgust, surprise – were not uniquely human. He believed they were inherited from our…

We tend to picture Carl Friedrich Gauss at a desk, scribbling equations that would reshape mathematics forever. And he certainly did plenty of that. But for nearly a decade of his life, Gauss was out in the field – literally. Trudging through marshes, climbing church towers, squinting through instruments on…

In 1905, Albert Einstein was not a professor. He was not affiliated with any university. He held no research position. He was a “Technical Expert, Third Class” at the Swiss Patent Office in Bern, evaluating patent applications for electromagnetic devices. He was 26 years old, recently married, and had a…

In the spring of 1901, a group of Greek sponge divers working off the coast of the tiny island of Antikythera hauled up something extraordinary from the seafloor. Among the marble statues, pottery, and coins of an ancient Roman-era shipwreck lay an unassuming lump of corroded bronze, roughly the size…

In 1904, a German zoologist published a book of one hundred lithographic plates depicting organisms most people had never seen. Jellyfish trailing translucent tentacles. Radiolaria – single-celled creatures with geometric silica skeletons that look like they were designed by a jeweler having the best day of his career. Orchids with…

In 214 BCE, the Roman Republic sent a massive fleet to conquer the city of Syracuse on the eastern coast of Sicily. Rome was the dominant military power in the western Mediterranean. Syracuse was a prosperous but politically unstable Greek city-state that had made the fatal error of switching its…

In 1827, Carl Friedrich Gauss published a Latin treatise titled Disquisitiones generales circa superficies curvas (General Investigations of Curved Surfaces). Buried inside was a result so unexpected, so elegant, that Gauss himself named it the Theorema Egregium, the Remarkable Theorem. It would go on to reshape mathematics, transform our understanding…

We live in the age of instant information. Any fact, any paper, any theorem is a search away. So why would anyone spend time and money building a science book collection of physical volumes? Because great ideas deserve beautiful objects. A digital file is convenient. A beautifully produced edition of…

The Law That Sets the Limit The first law of thermodynamics tells you that energy is conserved. The second tells you that entropy always increases, that every natural process has a direction it cannot reverse. Together, these two principles define what energy can do. But there is a third law,…

Open any mathematics textbook today, and you will find equations written with letters: x for an unknown, a and b for known quantities. This notation feels so natural that it seems as though it must have always existed. It did not. For thousands of years, algebra was performed entirely with…