The Master Chef of Kids’ Hands-on Science
How does a virus cause a disease? A virus is not a complete living thing. It is like a free-floating nucleus of cell. It doesn’t “grow” but under certain conditions it can make a copy of itself or reproduce. It invades the cells of other living things to use the internal structure of the host cells to reproduce. At a certain point, the number of new viruses in a cell is so large that the cell ruptures and dies, spilling out newly made viruses to continue the invasion to other uninfected cells.
One virus we understand very well is chicken pox. Chicken pox is a very contagious disease that enters the body through the air and affects mostly children. When I was young almost every kid got chicken pox but, since 1995, there has been a vaccine, which makes you immune and protects the spread of the disease to others. Is there another way to explain how this virus works? Suppose I imagine a virus could think, which it can’t. But, imagination gives me the freedom to think differently.
So I wrote a poem about an army of chicken pox viruses as they are about to attack a human being, maybe you, my reader. A “battle hymm” is a chant or a song to rally the troups just before an attack.
The Battle Hymn of the Chicken Pox Troopers
Charge forward, fellow viruses!
Invade a cell or two
Then let us join together
And make a chicken pox on you.
Let cells try to fight us
No matter what they do
Red spots of our graffiti
Make a chicken pox on you
We make the top skin separate
And fill the space with goo,
Small, itchy blisters are a stage
Of chicken pox on you.
And when the blisters break, my friend
You think perhaps we’re through
But no. Now there is a scab
For each chicken pox on you
Scratch a scab so it comes off
Baring skin that’s raw and new,
A scar forever marks the spot
Of that chicken pox on you.
To the battle, fellow viruses!
We’re more noteworthy than flu
They just make you feel sick
We make our chicken pox on you!
Meet your personal superheroes - your body's cells Superhero cells rally together to battle common childhood ailments in this series in which Vicki Cobb explains how your amazing human body heals itself and fights off intruders. Here's her book on yet another virus: Your Body Battles a Cold.
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/
Henry VIII gets a lot of bad press notably for his seven wives and a regrettable habit of chopping off heads. But there were two Henrys: early and late. Early Henry was a humdinger.
He became king at age 17 in 1509, a big (over six feet) handsome lad. He was broadly educated and well-read in English, Latin, and French. He played the lute, organ, and harpsichord, composed music, and sang well. He loved a party, and he was a ferocious sportsman. Henry played excellent tennis, was a skilled wrestler, hunter, and jouster.
His love of jousting may have been his undoing. This was not a battle skill but a royal game: on huge horses, in heavy armor, opponents rode at each other with blunt lances to knock each other out of the saddle. But in 1536 Henry left his face-covering visor up during a joust, catching a lance on his forehead. His majesty went down under his horse. His legs were crushed and he lay unconscious for two hours, apparently a serious concussion.
Henry changed radically. The broken long bones in his legs healed poorly and developed infected ulcers, which had to be drained using red hot probes. Ouch. Walking became difficult and painful, and finally impossible. The smell from his infected legs was awful. He became angry, paranoid, and irrational. No longer active, he ate and ate, bloating from around 210 pounds (95 kg) to 400 pounds (181 kg). This was late Henry: obese, dangerous, and smelly. His altered mental state and his constant pain surely contributed to his marital difficulties and to steady employment for head-choppers.
A mental, physical wreck, Henry VIII died at age 55 in 1547. Court embalmers replaced his innards with sawdust, resin and herbs to preserve the body, but Henry was already rotting from the legs up. The royal corpse was placed in a sealed lead coffin. An enormous regal procession set off from Whitehall Castle to Windsor Castle. The funeral parade halted the first day at the old Syon Abbey. In the middle of the night, the lead coffin exploded!
Or did it? Some historians suggest that it simply broke because Henry was too fat and the roads were bad. Yet contemporary morticians insist that gasses of decomposition can blow open even a modern sealed coffin. The coffin was soldered shut and the parade hustled on to the burial at Windsor, an untidy end for a wonderful and terrible king.
Huh? What does the flu have to do with the US Constitution? Here’s what.
The 2017-2018 influenza season shaped up to be the worst on record since 1918, the infamous year when 20 to 50 million victims died of this highly infectious disease worldwide. By mid-season January 2018, the most common type, A(H3), was already widespread throughout forty-nine states and Puerto Rico. Doctor visits were three times higher than normal. And, the proportion of deaths continued to increase sharply. Warnings about the flu’s spread and severity and advice on how to try to avoid it appeared frequently in the media.
Fortunately, the flu vaccine reduced the chance of catching the virus and eased symptoms of those who did come down with it, even though the vaccine had been engineered for a different strain. But, what if the disease threatened to fell millions of Americans, overrunning hospitals, closing schools and businesses, and causing panic? Could the government contain its reach by forcibly quarantining people? After all, that’s what some governors did in 2014 when they feared Ebola might run rampant here. Or, might the president or the Federal Aviation Authority halt flights to Hawaii, Alaska or Puerto Rico to at least contain it within the contiguous forty-eight states?
Unfortunately, our Constitution is vague about the situations under which the government can detain people during such a state of emergency. Normally, habeas corpus applies. This provision says that people have the right to be released from detention if the government can’t supply a reason to keep them locked up.
In 1787, when our Constitution was being drafted, the Framers debated whether there should be any exceptions to this right. Were there any grounds, they wondered, for keeping people confined for no legal reason and with no hope for release? They decided that “in Cases of Rebellion or Invasion the public Safety may require it.” But, a pandemic of bird flu from China, say, never occurred to the Framers. Would that be considered an invasion?
More recently, Congress gave the president the power to declare certain diseases “quarantinable” and to order the “apprehension…of individuals…for the purpose of preventing the introduction, transmission, or spread of such communicable diseases.” This is one of the government’s “police powers.” There are genuine questions, however, about what counts as such a disease and at what point in its spread the authorities can intervene. These are serious issues to consider—before an epidemic arrives.
Soldiers from Fort Riley Kansas lie ill with Spanish influenza at a hospital ward. It was the most famous and lethal flu outbreak ever to strike the United States, lasting from 1918 to 1919. It is not known exactly how many it killed, but estimates range from 50 to 100 million people worldwide.
-Courtesy National Museum of Health and Medicine, AFIP (Washington, D.C.)
US citizens initiated certain actions of their own during the Spanish flu pandemic. Here a Seattle trolley conductor refuses admission to anyone not wearing a mask.
The World Health Organization remains on alert for a future pandemic characterized by sustained transmission in the general population.
Left: An influenza virus magnified about 100,000 times. Influenza spreads around the world in a yearly outbreak, resulting in about three to five million cases of severe illness and about 250,000 to 500,000 deaths. -Wikimedia Commons Right: The Centers for Disease Control and Prevention recommends that everyone 6 months of age and older get a flu vaccine every season. -Centers for Disease Control and Prevention
Many of the political issues we struggle with today have their roots in the US Constitution. Husband-and-wife team Cynthia and Sanford Levinson take readers back to the creation of this historic document and discuss how contemporary problems were first introduced―then they offer possible solutions.
"A fascinating, thoughtful, and provocative look at what in the Constitution keeps the United States from being “a more perfect union.” " Kirkus Reviews - Best Middle Grade Nonfiction of 2017
MLA 8 Citation
Levinson, Cynthia. "Flu and the Constitution." Nonfiction Minute, iNK Think
Tank, 14 Feb. 2018, www.nonfictionminute.org/the-nonfiction-minute/
For Vicki Cobb's BLOG (nonfiction book reviews, info on education, more), click here: Vicki's Blog
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Remind me later