Category: STEM

Dear Friend

1/26/2023

Cheryl Harness
She’s historical

Picture this: It’s cold gray October 1918 in France, in the Argonne Forest. World War I has been going on for four hideous, deadly years. You and about 500 of your fellow Americans are smack in the middle of a MASSIVE battle. You’re running out of food and ammo. Shells are EXPLODING all around you and some of them are American! Those guys don’t know where you and your buddies are, trapped in a hillside valley, surrounded by enemy Germans!

          How can Major Charles Whittlesey, the commander of this lost battalion, let those other Americans know where his unit is? They’re cut off from the telegraph wires; so what, wave a flag? That’ll just draw more enemy fire! The messengers he’d sent had been shot or captured. How about homing pigeons? In this awful war, more than a 100,000 of them were used to carry battlefield messages. The major had sent all but one of his pigeons only to see them shot out of the sky. Finally, the desperate officer calls for his last one, named Cher Ami, the French words for Dear Friend.

          Major Whittlesey scribbles out a message: “We are along the road parallel to 276.4.Our own artillery is dropping a barrage directly on us. For heaven’s sake, stop it.” He rolls the scrap of paper, stuffs it into the tiny silver canister attached to Cher Ami’s leg, and sends him up and away. This pigeon has flown 11 successful missions— will he make it now? He must!

          The Germans fire.

          Cher Ami falls! He’s hit!

          But he beats and flaps his wings, gains altitude, and flies 25 miles. Despite being blinded in one eye and shot in his bloodied breast, Cher Ami delivers the critical message, still attached to his leg, dangling by a bloody tendon. And 194 American soldiers are saved by their brave dear, feathered friend. For his heroic service, Cher Ami was awarded France’s highest medal, le Croix de Guerre (the Cross of War).

          In the months after the war ended, on November 11, 1918, ocean liners carried Cher Ami and many thousands of other veterans to America. He continued to be treated, but in the end, his injuries were too serious. Cher Ami died on June 13, 1919.

          Back in the USA, Major Charles Whittlesey gave speeches about the war. He said nothing about any sorrow or awful memories, so no one knows just why he jumped off a ship to his death in the sea, late one night in November 1921. But the memory of soldiers’ heroism and of one bird’s stubborn courage will never die.

Cher Ami, stuffed and on display, minus his teeny wooden leg, carved by a fellow veteran. Wikimedia

Major Charles White Whittlesey was considered one of the greatest American heroes of the First World War. A Harvard-educated attorney working on Wall Street, he took a leave from his company and enlisted in the army as soon as the war began.

Cher Ami saved what the press called the “Lost Battalion,” a unit of about 200 men. This US Army Signal Corps photo shows them just after reaching friendly territory.

Cheryl's Latest book is Flags Over America. Click here to find out more about the book or click here to find out more about the author.

MLA 8 Citation
Harness, Cheryl. "Dear Friend." Nonfiction Minute, iNK Think Tank, 8 01 2018, www.nonfictionminute.org/the-nonfiction-minute/dear-friend.

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How to Extinguish a Fire with a Bag of Potato Chips

1/10/2023

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Vicki Cobb

The Master Chef of Kids' Hands-on Science

Ever taste a stale potato chip? If not, here’s how to make one:

If you have an open bag of potato chips lying around, you can use them. Otherwise open a new bag.
Put a few fresh potato chips in a glass bowl in the sunlight and wait a day or two.
Taste one of these exposed potato chips.
Compare it to the taste of a chip from a brand new bag.

Big difference, no? It’s enough to worry a potato chip manufacturer. There are two things that make a potato chip stale. Can you guess what they are? Okay, I’ll tell you: Air (specifically oxygen in the air) and light. So potato chip manufacturers know that if they want to keep their chips fresh, they have to remove oxygen and light. How do they do that?

Take a close look at an opened bag of potato chips. It is foil-lined to make it light proof. An unopened bag is very puffy because it is filled with a gas. This puffiness protects the chips from breaking. But the gas in the bag is not air, which is a mixture of about 20% oxygen and 79% nitrogen. It is air without the oxygen, so it’s mostly nitrogen.

You can prove this. Oxygen is needed for fire to burn. If the air around a flame is flooded with nitrogen, the flame goes out. So you can use the gas in a bag of potato chips to put out a candle. Here’s how:

Light a candle. (Make sure you have an adult help you since this trick involves fire.)
Cut off the corner of a new bag of potato chips.
Gently squeeze some of the gas from the potato chip bag near the candle flame. If you squeeze too hard, it’s like blowing the flame out. You want it to go out because the nitrogen in the potato chip bag is quietly flowing into the space around the flame.

Now you know how to extinguish a flame with a bag of potato chips. You have also proved that there is no oxygen in a potato chip bag! And you know why!

Now go educate some grown-up.

Before being flooded with nitrogen

After being flooded with nitrogen

Vicki Cobb’s best known book is Science Experiments You Can Eat. This is the new third revision published in 2016.

Vicki Cobb 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
Cobb, Vicki. "How to Extinguish a Fire with a Bag of Potato Chips." Nonfiction Minute, iNK Think Tank, 2 Oct. 2017, www.nonfictionminute.org/the-nonfiction-minute/how-to-extinguish-a-fire-with-a-bag-of-potato-chips.

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Renaissance Road Trips

1/3/2023

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Sarah Albee
Celebrating the History of Science
and the Science behind History

Catherine de Medici. She didn't travel light.

During the Renaissance, French kings and queens built many palaces, in an area known as the Loire Valley. The royal family would travel from palace to palace to get away from Paris, the way you might head to a lake house. The Loire Valley is not very close to Paris. It’s about 110 miles from Paris to the palace of Chambord, for instance. I wondered how long it took sixteenth century travelers to make this journey—and why there were so many palaces.

First, the distance. Under the best of conditions (good roads, decent weather, level ground), humans can walk four miles per hour over long distances. Horses can’t do much better–maybe five mph—but a lot less if they’re pulling something or if roads are in awful condition. A horse can canter at 20 mph, but it can only do that for six to eight miles at a time, after which it will slow down and walk, or stop completely. So it would have taken a long time to get from place to place. Under the best conditions, a journey from Paris to Chambord would have taken three weeks.

But in fact, it took a lot longer than that. Because in the sixteenth century, the royal court didn’t just hop on a horse and head to their country home. They took everything and everyone with them, loading all the stuff onto the backs of horses and mules.

When Catherine de Medici was queen of France, she traveled with her ladies and gentlemen, foreign ambassadors, pet bears, servants, retainers, attendants, apothecaries, astrologists, tutors, musicians, cooking pots, food, clothing, portable triumphal arches, wall hangings, and furniture.

And the reason there were so many palaces is simply that the court in Renaissance times –thousands of people–had to move around from estate to estate so as to find new hunting grounds. Once they’d exhausted the food supply in the area, they moved on to the next estate. Also, the sanitation was dreadful. After thousands of people had taken up residence in and around a great estate for a few weeks, filth piled up, and with it, stench and disease.

The royal procession could be miles long. When Catherine de Medici’s court packed up and left for a new palace, the beginning of the royal caravan sometimes entered a town before those traveling at the back of it had left the last one.

Ball in 1573, in the court of the French queen, Catherine de Medici. She is the one dressed in black.

A massive hunting party on the grounds of a sixteenth-century French chateau.

Just a little get-together for the 16th-century French court.

Sara Albee's recent book is Why'd They Wear That?, published by National Geographic in 2015. Get ready to chuckle your way through centuries of fashion dos and don'ts! In this humorous and approachable narrative, you will learn about outrageous, politically-perilous, funky, disgusting, regrettable, and life-threatening creations people have worn throughout the course of human history, all the way up to the present day. For more information, click here.

MLA 8 Citation
Albee, Sarah. "Renaissance Road Trips." Nonfiction Minute, iNK Think Tank, www.nonfictionminute.org/the-nonfiction-minute/renaissance-road-trips.

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The Story of Hanukkah

12/23/2022

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Jim Whiting
Nonfiction is the new black

When the Seleucid emperor Antiochus IV came to power in 175 BCE after his brother was assassinated, he insisted on being called Antiochus Epiphanes (“Antiochus the Visible God”). To the Jews who had the misfortune to be among his subjects, he was Antiochus Epimanes (“Antiochus the lunatic”).

No matter his name, he was definitely bad news to the Jews. Because of his Greek background, Antiochus believed in many gods. The Jews, on the other hand, were monotheistic. Antiochus soon began imposing his beliefs on the Jews and making it much more difficult for them to practice their religion. For example, anyone caught circumcising their newborn children would be put to death.

In 168 he sacked Jerusalem. His forces cut down thousands of defenseless Jews of all ages, looted and desecrated the Second Temple, and erected a massive statue of the chief Greek god Zeus (using himself as a model for the sculptor who created the statue). Soon the altar ran red with the blood of swine that were slaughtered as sacrifices. For good measure, Antiochus also outlawed the Hebrew religion.

The outraged Jews fought back. An elderly priest named Mattathias and some of his men killed a group of Seleucid soldiers. That ignited a revolt against Antiochus’s rule. When Mattathias died, his son Judah assumed the leadership role. Judah soon acquired the surname of Maccabee (“the hammer”) for his skill in battle. After a series of successful guerrilla operations, he led his vastly outnumbered forces to two decisive victories that resulted in the recapture of Jerusalem in 165.

The first order of business was cleansing the temple so it could be rededicated. The ceremony began on the 25th day of the Hebrew month of Kislev. According to legend, the small amount of purified oil that was readily available for the rites was expected to burn just a single night. Instead it burned for eight nights, when a new supply became available. That miracle gave rise to the ceremony of lighting one candle for each of the eight nights of Hanukkah, which means “dedication.”

Because the Hebrew calendar is lunar-based, the dates of Hanukkah change each year. This year Hanukkah begins [December 12] at sunset and lasts until sunset on December [20].

To the Jewish families who celebrate the holiday, Happy Hanukkah!

The holidays are approaching and millions of people will be listening to Handel’s Messiah. Read all about the composer in Jim Whiting’s Masters of Music biography.

MLA 8 Citation
Whiting, Jim. "The Story of Hanukkah." Nonfiction Minute, iNK Think Tank, 11 Dec. 2017, www.nonfictionminute.org/the-story-of-hanukkah.

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Did Theodore Roosevelt Ban Christmas Trees?

12/22/2022

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Kerrie Logan Hollihan
Teaching the Power of Wonder

When I was a kid fifty years ago, President Theodore Roosevelt had a bad rap. We learned that way back in the 1900s, he banned Christmas trees from the White House. What a lousy father, I thought.

         Down through the years, the story went something like this: Across America in the early 1900s, huge forests were in danger of destruction from a lumbering practice called “clear-cutting.” Lots of newspapers and public leaders asked Americans to stop going to the woods to cut Christmas trees. Now when the Roosevelts and their six kids lived in the White House, they didn’t have a tree. Stockings and presents, but not a tree. So folks assumed that Roosevelt had outlawed Christmas trees, because he was a huge outdoorsman and conservationist.

         But, according to people who’ve done their history homework, that’s not the whole truth. It’s possible that First Lady Edith Roosevelt had six kids to think of and didn’t want the extra fuss of a Christmas tree. Christmas trees had become very popular ever since the old German tradition was picked up in the United States, but not everyone chose to have one.

         As it turned out, the Roosevelts did have at least one tree, courtesy of their eight-year-old son Archie. On Christmas morning 1902, Archie surprised his family. The president wrote about it in a letter that told of Christmas morning:

So their mother and I got up, shut the window, lit the fire (taking down the stockings of course), put on our wrappers and prepared to admit the children. But first there was a surprise for me, also for their good mother, for Archie had a little birthday tree of his own which he had rigged up with the help of one of the carpenters in a big closet; and we all had to look at the tree and each of us got a present off of it.

A magazine ran the story of Archie’s tree the next year. From then on, it picked up all sorts of embellishments, sort of like playing telephone at a birthday party.

Today, the best explanation of the old story appears on a blog run by the Forest History Society. Visit their website .

And for more cool facts about Christmas trees, check out the website of the folks who know, the College of Agriculture at the University of Illinois.

Roosevelt Family in 1903 with Quentin on the left, TR, Ted, Archie, Alice, Kermit, Edith, and Ethel. Credit: Library of Congress

Young Archie Roosevelt on his horse Algonquin. Credit: Library of Congress

The discovery of the tree in the seamstress's closet was a popular Christmas illustration for a story that ran in Ladies Home Journal. The story underscored the simplicity of the Roosevelt family’s Christmas decorations and the president’s conservation ethic.

Theodore Roosevelt for Kids brings to life this fascinating man, an American giant whose flaws were there for all the world to see. Twenty-one hands-on activities offer a useful glimpse at Roosevelt’s work and times. Readers will create a Native American toy, explore the effects of erosion, go on a modern big game hunt with a camera, and make felted teddy bears. The text includes a time line, online resources, and reading list for further study. And through it all, readers will appreciate how one man lived a “Bully!” life and made the word his very own.

Kerrie Hollihan is a member of iNK's Authors on Call and is available for classroom programs through FieldTripZoom, a terrific technology that requires only a computer, wifi, and a webcam. Click here to find out more.

MLA 8 Citation
Hollihan, Kerrie Logan. "Did Theodore Roosevelt Ban Christmas Trees?" Nonfiction Minute, iNK Think Tank, 22 Dec. 2017, www.nonfictionminute.org/the-nonfiction-minute/ Did-Theodore-Roosevelt-Ban-Christmas-Trees. Accessed 22 Dec. 2017.

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Dear Friend

How to Extinguish a Fire with a Bag of Potato Chips

Renaissance Road Trips

The Story of Hanukkah

Did Theodore Roosevelt Ban Christmas Trees?

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