In spring 1665 a college student named Isaac Newton studied natural philosophy, what we call “science.” Back then, a good student could learn everything to know about the natural world. But plague, the Black Death, came to England. Cambridge University closed. Isaac went home to Woolsthorpe.
For two years Isaac thought about his studies during four years at university. He’d always been thoughtful—not the best at games, making friends, or minding sheep. But everybody knew Isaac Newton liked to think. Folks told time by the sundial he’d drawn on a wall.
Home at Woolsthorpe, Isaac’s learning about science and math bubbled up in his head like yeast rising in a loaf of bread.
So... Newton unplugged. His mind roamed like that of an artist or composer. He was driven by the need to create—not paintings or symphonies, but questions.
“Why do things always fall down?”
“Why does the earth move around the sun?
“Why doesn’t the moon fall onto the earth?”
“Does everything ‘up there” work like things work ‘down here?’”
Isaac Newton answered his questions with three science rules, Newton’s Laws of Motion.
At Woolsthorpe, Newton grappled with the concept of moving objects. He worked out the math to find the area under curves. He called this math fluxions. Today we call this calculus, useful for launching rockets or tracking TV signals.
Once back at Cambridge, Newton said nothing until he read someone else’s paper on fluxions. Newton published a better paper. Soon he was Cambridge’s top math professor.
Isaac Newton wondered another twenty years. He played with prisms in a dark room and theorized that white light comprises the visible spectrum of red, orange, yellow, green, blue, indigo, and violet. He practiced alchemy and chemistry, looking for the legendary philosopher’s stone to turn base metals to gold. In 1687, Newton published our most important science book, the Principia.
In the Principia, Newton showed how laws of gravity and motion work the same at great distances—far off in space, or in your classroom. We accept these ideas, but in 1687 many still had medieval beliefs that sun, moon, planets, and stars all traveled in their own crystal spheres.
Yes, Newton wondered about A LOT:
Sir Isaac Newton was an English mathematician, astronomer, theologian, author and physicist who is widely recognized as one of the most influential scientists of all time and a key figure in the scientific revolution. Based on a portrait by Godfrey Kneller, 1702, via Wikimedia Commons
Sir Isaac Newton's own first edition copy of his Philosophiae Naturalis Principia Mathematica with his handwritten corrections for the twentieth edition. Photograph Andrew Dunn via Wikimedia Commons
Trinity College, the part of the University of Cambridge where Newton worked and lived. Library of Congress
This statue of the young Isaac Newton stands at the Oxford University Museum of Natural History. Look carefully around his feet for a hint on what he is wondering about. If you can’t figure it out, then read about Newton and gravity.
Featuring 21 hands-on projects that explore the scientific concepts Isaac Newton developed, Kerrie Logan Hollihan's Isaac Newton and Physics for Kids paints a rich portrait of the brilliant and complex man and provides readers with a hands-on understanding of astronomy, physics, and mathematics. A time line, excerpts from Newton's own writings, online resources, and a reading list enhance this unique activity book.
MLA 8 Citation
Hollihan, Kerrie Logan. "Isaac Newton's Wonder Years." Nonfiction Minute, iNK
Think Tank, 21 Feb. 2018, www.nonfictionminute.org/the-nonfiction-minute/
Kerrie Logan Hollihan
Teaching the Power of Wonder
Dr. Percy Julian was my neighbor in Oak Park, Illinois. I didn’t know the family who lived in the pretty home surrounded by an iron fence. But I heard the story, that the house was firebombed after they had bought it back in 1951. The Julian's were African-Americans coming to a white community.
Later I learned more. Dr. Julian was someone who didn’t take no for an answer. He grew up in the segregated South going to black-only schools. He hoped to study plant chemistry, but no southern college would accept a Negro, so he moved on. He went to DePauw University in Indiana and helped pay tuition by waiting tables at a white fraternity. He graduated at the top of his class in 1920 and wanted to get his doctorate at Harvard. Harvard refused, because that would mean Julian could teach whites—and that was not allowed.
Julian moved on. He went to Austria to earn his doctorate, and in that lab he studied chemicals in plants, especially beans. Many excellent medicines came from plant chemicals, but extracting them was often costly.
Upon returning to DePauw to teach, Julian was able to synthesize a plant chemical called physostigmine. His discovery produced inexpensive medicine for patients with glaucoma, an eye disease causing blindness. But the Great Depression fell across America, and DePauw ran out of money to fund his research.
Julian moved on. A Chicago paint company hired Julian as the first African-American to head a research lab in American industry. Julian had to travel for his work, and motels refused him a bed. One year he slept in his car 32 times, sometimes in the dead of winter.
Julian and his coworkers developed inks and paper coatings, dog food and a product called Aero-Foam to extinguish fires on aircraft carriers. His team discovered many uses for soybeans, at that time viewed as food for cows and pigs. Most important, they synthesized “Substance S” from soybeans. This synthetic drug replaced wildly-expensive cortisone. Julian’s landmark achievement offered relief to kids suffering from the painful and disfiguring disease rheumatoid arthritis.
Percy Julian worked all his days, always moving on to make life better. He built his own research business, volunteered at church, played the piano, and loved his family. He became a quiet hero to many, including me. I’m writing a book about Dr. Julian, which I hope you’ll see in print. For now, visit this site.
Kerrie Hollihan has already written about one great scientist, Sir Isaac Newton. You can read more about this book here.
Kerrie Hollihan is a member of iNK's Authors on Call and is available for classroom programs through Field Trip Zoom, a terrific technology that requires only a computer, wifi, and a webcam. Click here to find out more.
MLA 8 Citation
Hollihan, Kerrie Logan. "Dr Percy Julian: Forgotten Genius." Nonfiction Minute,
iNK Think Tank, 13 Feb. 2018, www.nonfictionminute.org/
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