Sneed B. Collard III
Several years ago, I rode the world’s fastest elevator to the top of one of the world’s tallest buildings—Taipei 101. Shaped like an elegant stalk of bamboo, Taipei 101 soars 1670 feet above the island nation of Taiwan. However, the engineers who designed the building faced two monumental challenges. The first is that dozens of earthquakes shake Taiwan each year. The second is that in an average year, Taiwan gets hammered by three or four hurricanes, or typhoons.
How, engineers wondered, could they keep people comfortable inside Taipei 101 when it swayed back and forth? More important, how could they keep the building from getting damaged or collapsing in a massive earthquake or 100 mile-per-hour winds?
One solution: a damper ball.
Damping devices are weighty objects that can reduce the motion of a bridge, building, or other structure. In the case of Taipei 101, engineers placed the damper ball near the top of the building—the part that sways the most. The ball is hung from thick cables inside the building and rests on giant springs or “dampers.”
One of Isaac Newton’s basic laws of physics is that an object at rest tends to stay at rest—and the damper ball proves it. Every time Taipei 101 starts swaying, the damper ball wants to stay where it is and “pulls back” on the building, reducing how far the building moves. When the building sways in the opposite direction, the process repeats itself—but in the reverse direction. Of course the building also pulls on the damper ball, but the ball’s movements are restricted by the dampers it presses against.
Does the system work? You bet. The damper ball inside of Taipei 101 reduces the building’s movement by 30 to 40 percent!
Of course not just any damping device could protect an enormous building like Taipei 101. Taipei’s damper ball weighs 1.5 million pounds—as much as two fully-loaded jumbo jets. It is composed of 41 circular steel plates that stand taller than a one-story house. In 2008, when a giant earthquake hit mainland China, the people of Taiwan could feel it hundreds of miles away. The damper ball did its job, resisting Taipei 101’s movement, keeping the building safe. During Typhoon Soudelor in 2015, the damper again worked like a charm, protecting the building against 100- to 145-mile-per-hour winds.
Besides protecting Taipei 101, the damper ball has become a major tourist attraction. Each year, thousands of visitors ride to the 89th floor. They take selfies next to the damper ball. They even take “Damper Baby” souvenirs home with them. If you’re ever lucky enough to visit Taiwan, check it out!
The damper ball is visible between the 89th and 91st floor of Taipei 101 and has become an attraction for tourists.
Sneed B. Collard III is author of more than eighty award-winning children’s books as well as a new book for educators, Teaching Nonfiction Revision: A Professional Writer Shares Strategies, Tips, and Lessons.
Sneed is a dynamic speaker and offers school and conference programs that combine science, nature, and literacy. To learn more about him and his talks, visit his website,.
To learn more about the damper ball and watch how it performed during Typhoon Soudelor, check out this article and video: http://www.thorntontomasetti.com/taipei-101s-tmd-explained/
MLA 8 Citation
Collard, Sneed B. "Damping Down Danger." Nonfiction Minute, iNK Think Tank, 10
01 2018, www.nonfictionminute.org/the-nonfiction-minute/
Celebrating the History of Science
and the Science behind History
Imagine you’re driving home from your favorite take-out restaurant when you suddenly encounter a giant boulder in the middle of the road. With luck, the person at the wheel has time to slam on the brakes and then drive around it.
Scientists are refining a technology that helps cars avoid collisions and traffic jams. Cars will be programmed to “see” a roadblock or sudden slowdown before the driver does. And some of this technology is based on . . . ants.
Leafcutter ants, to be specific. Leafcutters can be any of a number of species of ants equipped with powerful mandibles (jaws). They travel in long lines through the rainforest, leaving a scent along the trail to find their way back. After an ant saws a chunk out of a leaf, it flings it over its back and then joins the super-highway of nest-mates heading back to the nest. Once there, the ant’s colleagues chew the vegetation into a pulp and then mix it with ant poop and fungus spores. The ants eat the resulting fungus that grows from the decomposed goop.
According to a study in the Journal of Experimental Biology, scientists blocked the path and created a narrow passageway between leafcutter ants and their nest, to see what the ants would do. Not only did the ants at the front show the ants behind them an efficient route back to the nest, but the chain of ants also somehow communicated, ant by ant, the need to carry a smaller piece of leaf to fit through the narrower passage the scientists had created.
And none of them bumped into anything, even while lugging leaves ten times their body weight. By working together and adapting quickly, the ants communicated information and reinforced the trail using what scientists call “distributed intelligence.”
And ants don’t just help car engineers. Scientists in other fields have been studying ant traffic patterns for all sorts of different systems where massive amounts of interacting units have to move around without crashing into one another. Besides traffic jams, scientists are studying ways to apply ant-like ingenuity to fields of study such as molecular biology and telecommunications.
Sara Albee's book, Why'd They Wear That?, was 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 actually wore in public.
MLA 8 Citation
Albee, Sarah. "Ants in a Jam." Nonfiction Minute, iNK Think Tank, 4 Dec. 2017, www.nonfictionminute.org/ Ants-in-a-Jam.
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/
David M. Schwartz
The amazing, engaging, math exponent
Imagine Earth as a button. I don’t mean you’re going to sew it onto your shirt. But imagine the planet Earth shrunk to the size of a button. (Of course Earth is not flat like a button but we’re giving our shrunken Earth the same diameter as a shirt button.)
Go ahead and draw a circle around a shirt button. Call it “Earth.” Suppose you wanted to draw Jupiter, the largest planet, at the same scale as this micro-Earth. That means you’re going to shrink it to the same fraction of its original size as our button-Earth. What size would little Jupiter be?
One way to find out would be to calculate how many times bigger the real Jupiter is than the real Earth. Earth’s diameter is about 8,000 miles (13,000 kilometers). Jupiter’s is about 88,000 miles (143,000 km). Divide the size of Jupiter by the size of Earth to see that Jupiter is about 11 times bigger.
So, since Jupiter’s diameter is 11 times that of Earth’s, put 11 buttons in a line to show the diameter of Jupiter. Then draw the circle that represents Jupiter. If you don’t have 11 buttons, just look at the picture. Did you think the Earth was a big place? Look at it compared with Jupiter!
But what about the sun? The sun’s diameter is about 865,000 miles (1,400,000 km). That means it’s almost 10 times bigger than Jupiter. Can you find a way to draw a circle 10 times the size of our Jupiter? We’ve drawn part of it for you, on the same scale as our button-sized Earth. On the picture, it’s labeled “our arc.” (An arc is part of a circle.) Looking at the arc, you can imagine the rest of the circle and compare the sun to Jupiter and Earth. A minute ago, you thought Jupiter was big. Now it looks shrimpy compared to the sun!
But is the sun really gigantic? Do some research to find out the size of a red giant star like the strangely named Betelguese (pronounced “beetle-juice.”) Figure out what it looks like compared to our sun, which is a medium-sized star. You may be amazed at the difference. And you thought the sun was big!
Is anything truly big? Is anything truly small? Or does that depend on what it’s being compared to?
Both images are by Marissa Moss, the illustrator of David M Schwartz's book, G is for Googol.
G is for Googol: A Math Alphabet Book is a wonder-filled romp through the world of mathematics.
For more information, click here.
David Schwartz 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.
Schwartz, David M. "If the Earth Were a Button." Nonfiction Minute, iNK Think
Tank, 16 Jan. 2018, www.nonfictionminute.org/the-nonfiction-minute/
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.
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.
For Vicki Cobb's BLOG (nonfiction book reviews, info on education, more), click here: Vicki's Blog
The NCSS-CBC Notable Social Studies Committee is pleased to inform you
that 30 People Who Changed the World has been selected for Notable Social Studies Trade Books for Young People 2018, a cooperative project of the National Council for the Social Studies (NCSS) & the Children’s Book Council