In 1953, a scientist named Edmund Schulman discovered that bristlecone pines are the world’s oldest trees. They live high in the mountains—between 9,000 and 11,000 feet above sea level where the soil is rocky, the air is as dry as a desert, and the temperatures are extremely hot in summer and cold in winter. Most ancient bristlecones grow in California’s White Mountains and Nevada’s Snake Range, and scientists now know that some of these trees are more than 5,000 years old. They are the oldest known living things on the planet. Edmund Schulman used a boring bit, a tool shaped like a drinking straw, to drill into old trees and pull pencil shaped pieces of wood called cores out of the trunks of very old trees. Cores contain patterns of stripes. One stripe represents one year of growth. Schulman counted more than 4,600 stripes from a tree he named Methuselah--after the oldest man in the Bible. Today, the Methuselah Tree’s exact location is kept secret to protect it from too many visitors. Like all ancient bristlecone pines, Methuselah’s annual growth rings contain secrets spanning thousands of years—secrets that are being discovered by scientists who know how to “read” tree rings. Rainfall, fires, volcanoes, droughts, and climate changes, are literally recorded in the growth rings. In the summer of 2011, I went searching for Methuselah. I brought along my camera. Although I am not a tree-ring scientist, I did my own research using my five senses. I tasted the pitch and pollen from cones (it was a little bit bitter); smelled the bark (it smelled like rain); touched wind sculpted and sun bleached wood surfaces (it was smooth and grooved); listened to the sound created when I tapped the rock-hard wood (it was sharp and short); and I was amazed by their strange forms and colors (they looked like dancers). Did I find Methuselah during my adventure? Actually, when I stopped searching,Methuselah found me. I will share that story along with a lot of science, in the book I am writing. But I won’t publish Methuselah’s photo or location. Some things must be kept secret. Alexandra Siy's latest book is Bristlecone: The Secret Life of the World's Oldest Tree. :know about about her new book from the author click here. Vicki Cobb's review says: "Siy and Garnsworthy have created a picture book for all ages that is creative nonfiction at its best. It spotlights STEAM, including an "A" for "art" plus science that shows us HOW we know while infusing a desire to WANT to know. It innovatively includes suspense, romance, and wonder in a tale of these battle-scarred heroes of the plant kingdom." Alexandra Siy is a member of iNK's Authors on Call and is available for remote classroom programs. . Click here to find out more. MLA 8 Citation Siy, Alexandra. "The Oldest Tree on Earth." Nonfiction Minute, iNK Think Tank, 10 Oct. 2017, www.nonfictionminute.org/the-nonfiction-minute/the-oldest-trees-on-earth.
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​This summer, you may be able to observe an amazing event in nature. You can watch a small animal build a structure much bigger than itself, using materials from inside its own body!
This is what happens when a spider spins a web. Inside a spider are glands that can produce seven different kinds of silk. The silk comes out of little spigots, called spinnerets, at the rear of the spider's body. A strand of spider silk is stronger than a similar strand of steel, and spiders use this amazing material in many ways. If they catch an insect, they may wrap it in silk, to eat later. Female spiders enclose their eggs in a silken sac to protect them. And some spiders—almost always females—make webs that are death traps for insects. Webs can be in the shape of funnels, sheets, or domes, but the best-known are called orb webs. From an orb web's center, lines of silk radiate out in all directions, like the spokes of a bicycle wheel. After building this basic structure, a spider goes round and round, laying down ever-bigger circles of silk. Some of the silk threads have sticky glue to catch a moth or other prey. A spider can create this whole complex design in an hour or less. When an orb web is complete, some kinds of spiders wait right in the center. Others hide at an edge. Either way, the builder keeps a front leg in touch with the web. Vibrations from the threads tell a spider whether prey has been caught. Spiders often have to repair their webs, and some species routinely build a new one every day. And they recycle! They eat most of their old web. After digestion, it becomes brand new silk for the next construction job. You may be able to watch a spider on the job. Look for webs in a field, park, or backyard. Also look for webs near doors, windows, or on a porch. The nighttime lights from such places attract night-flying insects, and spiders often build webs there. They may or may not be orb webs, but watching any kind of spider at work on its silken insect-trap can be fascinating fun. And remember: the spider wants nothing to do with you. It is just trying to stay safe and catch some food.
This video was shot by Ingrid Taylor, " I shot this a few minutes after the rain subsided, when the City of Spiders outside the door came to life. Mass web-building and repair going on..." wikimedia commons
.To learn more about the lives of spiders, and see spectacular realistic illustrations, see Laurence Pringle's book:
​MLA 8 Citation
Pringle, Laurence. "Watch a Webmaster at Work!" Nonfiction Minute, iNK Think Tank, 14 June 2018, www.nonfictionminute.org/the-nonfiction-minute/ Watch-a-Webmaster-at-Work. During the Middle Ages, “going to the bathroom” or “relieving oneself” meant using a privy. A privy typically consisted of a raised board with one or more openings cut in the middle where the users would sit. Their fecal matter would plop into large holes called cesspits beneath them. Over time, the cesspits would fill up and start overflowing. When that happened, gong farmers had to empty them. “Gong” came from a word that means “going.” And the farmers “harvested” the accumulation of months or even years of “going.” To make sure all the foul material was removed, the workers would hop down into the pits, where the feces came up their waists or even higher. Because of the relative ease of getting them in and out, small boys were often employed. The cesspool contents were dumped into carts and taken to larger dump sites on the edge of town, where more conventional farmers would use it as fertilizer. People in the Middle Ages rarely bathed. So gong farmers stunk. Really. Stunk. Because of their horrible stench, they were often restricted in where they could live. They were allowed to work only at night to spare their fellow citizens from seeing and smelling them. Besides the horrible smell and probable lack of friends, gong farmers encountered specific occupational hazards. Decaying fecal matter could produce poisonous gases. At least one gong farmer stumbled into a cesspool he was cleaning and drowned. Violators of the rules for collecting the refuse and disposing of it were submerged in barrels up to their necks and placed on public display for hours on end. On the other hand, gong farmers were well paid, often earning in a day what other workers might make in a week. They had another potential source of income as well. Careless crappers occasionally dropped rings or coins into the cesspits. Enterprising gong farmers combed through the mess with their bare hands in search of those treasures. The advent of better sanitary methods in the 19th century ended gong farmers in many countries. However, it is still practiced in some areas of the world. You can learn more about Jim Whiting with a visit to his website. He is an interesting fellow with an interest in music and sports and has written lots of books in both fields. MLA 8 Citation
Whiting, Jim. "Gong Farmers: Their Crop Was ...Crap." Nonfiction Minute, iNK Think Tank, 15 Dec. 2017, www.nonfictionminute.org/Gong-Farmers. Alexandra Siy Science through the lens Do you know about the “birds and the bees?” If you don’t, don’t worry. You will learn soon enough. When it comes to flowers there’s nothing to hide. There’s just no way around it—flowers are sexy. Their colorful, curvy petals are soft as velvet and as fragrant as the most expensive perfumes. Their nectar is as sweet as…well, honey. Besides being pretty, flowers have power. Their pollen is packed with protein. No wonder the birds and the bees, and insects of many kinds, find them so irresistible. Pollen may be the perfect food for bees, but it is also the way plants get together. Think about it. Plants can’t walk, crawl, swim, or fly. So, how does boy meet girl? In order to reproduce, the pollen from the male has to have direct contact with the female (and I don’t mean texting). Pollen grains are carried on the legs of bees and in the beaks of birds, from one flower to another. A few grains become engaged, hitched, and literally stuck on the sticky female flower part called the stigma. Sugar from the stigma fuels the pollen grain to sprout a tube. This pollen tube grows downward through the female part called the pistil and into the chambers that contain tiny bubble shaped eggs. When the tip of the pollen tube finally reaches an egg chamber it releases a male sperm cell. The sperm and the egg unite, and a brand-new cell is formed. This is the beginning of a seed. Picture an apple. Before the apple was a fruit containing seeds, it was a very sexy flower. So the next time someone asks you if you know about the birds and the bees, tell them about flower power. They might be surprised how plants get together to make baby plants, which in scientific terms is an interesting example of the process called sexual reproduction. Pollen is contained in the anthers, which are the six slipper shaped sacs at the end of the stamens. The female stigma is the rounded tip located at the top of the style. The pollen tube is a microscopic tube that grows through the style and into the ovary, which is hidden inside the base of this flower. Hanging down, at the lower right side of the photo are the remains of another flower. The petals and stamen have fallen off revealing the entire pistil: the stigma, style, and the ovary (green structure), which holds the eggs. Photo credit © Alexandra Siy Why not watch some web-spinners do their thing with the help of this stunning and superlative book by Alexandra Siy? You can read more about it here. Alexandra Siy 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
Regular visiting hours are over at the Buffalo Botanical Gardens, but the line to see Morty reaches out the door. It’s an event that comes once in a decade, so I’m happy to wait for my chance to see, and smell, what’s inside. A year ago the Botanical Gardens acquired corms or bulbs of a tropical plant called the corpse flower. These aren’t little tulip bulbs you hold in your hand. The corpse flower corm weighs 120 pounds and looks like a giant potato. A corm that big needs a lot of energy to grow, so, it spends several months dormant underground. When the first hint of green peeks through the soil, it’s a guessing game as to what it will look like. Most of the time, the corpse flower will send up a slender shoot and one complex leaf that looks like a tree canopy. Through photosynthesis, this leaf will provide energy that will be stored in the corm. When there is enough energy stored up, Morty will flower. And that’s what I’m excited to witness. Weaving my way through displays of cactus, palms, and banana trees, I wonder if someone forgot to take the trash out. The odor of rotting meat wrinkles my nose, and I realize why Morty is called a corpse flower. As we move closer, the air grows thicker. This plant has been dumpster diving. The stink Morty sends forth is the plant’s way to attract pollinators in its native jungle of Sumatra. The flower only lasts a day or two, so the scent has to be pungent enough to quickly draw in dung beetles and carrion flies that will collect the pollen and distribute it to other plants before it wilts. It’s curiosity that lures me in. I round the corner and catch my first glimpse of the stinker. Since it poked out of the ground it has grown five to six inches every day, and now Morty’s seven-foot spire, called a spadix, towers over me. I have to step back to catch the entire plant in my camera lens. Like a wicked witch’s collar, Morty wears a single pleated, blood red flower petal wrapped around the spadix. By midnight the flower will be fully opened and have reached maximum reek. I click more pictures and take a deep breath. It will be a long time before Morty blooms again, and I want to remember every smelly detail. Peggy Thomas certainly is a Curiosity Queen. You'll recall that her last Nonfiction Minute showed her taking an elephant's temperature -- not an easy task. Her book Anatomy of Nonfiction shows other authors how to write about real events. To read about some of Peggy's other adventures and to find out about her books, visit her website. MLA 8 Citation
Thomas, Peggy. "Morty Makes a Stink." Nonfiction Minute, iNK Think Tank, 9 01 2018, www.nonfictionminute.org/the-nonfiction-minute/Morty-Makes-a-Stink. |
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