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285 illustrations
Every autumn, monarch butterflies leave southern Canada and fly nearly three thousand miles to a small cluster of oyamel fir trees in the mountains of...
In 1892, German surgeon Julius Wolff published a discovery that reshaped orthopedic medicine. He demonstrated that bone tissue remodels itself in response to the mechanical...
In the 1440s, a Dominican friar named Fra Angelico was given an unusual assignment by his prior: paint frescoes in every cell of the Convent...
In 2010, researchers at Hokkaido University published a study in *Science* that stunned the engineering world. They placed a slime mold — a single-celled organism...
In his 1945 Nobel Prize lecture, Alexander Fleming issued a warning that still echoes through hospital corridors today. The man who discovered penicillin told the...
Every smartphone comes with a GPS app that can guide you anywhere — across cities, through unfamiliar countryside, even around construction detours you never saw...
For five years, Judson Van DeVenter said no to God. A gifted art teacher in Michigan in the 1890s, he loved painting, loved his students,...
In 1892, German surgeon Julius Wolff published a discovery that still shapes orthopedic medicine today: bone remodels itself in response to the loads placed upon...
In C.S. Lewis's *Prince Caspian*, the four Pevensie children are lost in the wilderness, trying to find their way to the rightful king. Then Lucy...
In Fyodor Dostoevsky's *The Brothers Karamazov*, young Alyosha Karamazov has found everything he longs for inside the monastery walls. He loves his Elder, Father Zosima,...
Young sunflowers do something remarkable. From dawn to dusk, they track the sun across the sky, turning their faces from east to west in a...
Every autumn, monarch butterflies born in the northern United States and Canada do something remarkable. Though they have never made the journey before — and...
In George MacDonald's *The Princess and the Goblin*, young Princess Irene receives a gift from her mysterious great-great-grandmother who lives in a hidden tower room:...
In C.S. Lewis's *Prince Caspian*, the four Pevensie children are lost in the wilderness, trying to find their way to the besieged castle. Late one...
In 1892, German anatomist Julius Wolff published a remarkable discovery that still shapes orthopedic medicine today. Wolff's Law states that bone remodels itself in response...
In George MacDonald's children's novel *The Princess and the Goblin*, young Princess Irene receives a gift from her mysterious great-great-grandmother — a thread, invisible to...
In George MacDonald's *The Princess and the Goblin*, young Princess Irene discovers her mysterious great-great-grandmother living in a hidden tower room. The grandmother gives Irene...
In the early 1920s, Dr. Frederick Banting and Charles Best discovered insulin at the University of Toronto — a breakthrough that transformed diabetes from a...
Every autumn, monarch butterflies launch themselves into a journey of nearly three thousand miles, flying from eastern North America to a handful of oyamel fir...
Judson W. Van DeVenter was a gifted painter and art teacher in the late 1800s. He loved the canvas — the sweep of color, the...
In the Eastern Orthodox tradition, creating an icon is not called painting — it is called "writing." The iconographer does not invent. They submit. Before...
In Dostoevsky's *The Brothers Karamazov*, young Alyosha has found his sanctuary. The monastery is quiet, ordered, holy. Elder Zosima is his spiritual father, and Alyosha...
When you download an app like Google Maps onto your phone, one of the first things it does is ask for permissions. "Allow access to...
In February 2021, NASA's Perseverance rover landed on Mars and began exploring Jezero Crater. What makes this machine remarkable isn't just its engineering — it's...