14 Mar 2014

“Potbelly Hill” gives birth to new theories of civilization

By Judy Wearing

Tall, flat stones arranged in circles stand straight, their limestone edges sharply sculpted. Some are six metres in height, and decorated with a menagerie of carvings: lions, gazelles, foxes, donkeys, bulls, reptiles, insects, and birds. The pillars are enclosed inside circular walls. There are four such enclosures, back to back, each surrounding up to eight pillars each. Sixteen more enclosures remain out of sight, under the earth. These 'rooms,' with their rings of standing stones, were buried at Gobekli Tepe (potbelly hill), a man-made mound 15 metres high, located in Southern Turkey. These awesome monuments were made without metal. They were sculpted with stone tools, and transported hundreds of feet from a quarry without beasts of burden or wheels. At the time they were built, writing had not yet been invented. Neither had pottery. Their discovery has changed the way archaeologists think about human civilization.

Gobekli Tepe rivals Stonehenge in its complexity, but predates it by some six thousand years, hailing to 9600 - 8800 BC. It is older than the pyramids and the ancient cities of Ur and CatalhÓ§yuk. It is the oldest known building project on Earth. But it is not its age per se, its engineering, or even its artistry that make Gobekli Tepe so special. It is that the people who created and used it were nomadic hunter-gatherers living before the invention of agriculture. There is no local source of water, no traces of housing, cemeteries, domesticated animals or plants. The people who built this 'temple' did not live here, nor anywhere else permanently.


The existence of Gobekli Tepe turns the common understanding of the development of human civilization on its head. The old way of thinking has humans in Mesopotamia discovering that wild grains can be saved and planted, and wild animals captured and contained. This ‘Neolithic revolution’ encouraged people to settle in one place, growing and keeping food instead of hunting and gathering it. Then, as a consequence of the new stability, came increased food supply, growth of community, cooperation, division of labour, extra time to devote to art and architecture, religion, organized cemeteries, public buildings, etc. Gobekli Tepe, however, was built by a number of people over a significant amount of time, organized, cooperating, and practicing a common  religion -- all without the existence of stable, permanent settlements.

Besides demonstrating that long-held beliefs can be wrong, and that early human societies were more complex than previously thought, Gobekli Tepe is a spectacular site in its own right. What people were doing here is still a mystery, and the lack of writing means there is no voice from the past to tell us what these structures meant to their culture. There are some intriguing clues, however. For one, some of the T-shaped stones have belts and arms carved on them, suggesting they are stylized representations of people. For another, what look like benches are built into the walls – for visitors to rest awhile, dead or alive, in the company of the stone statues.

Some believe that Gobekli Tepe’s stone circles were sanctuaries to link the world of the living with the world of the dead. Today, they still function as a link to the world of the dead, the only connection we have to the culture that lived and died in that part of Turkey more than 11,000 years ago. The stones still tell stories of their builders, whispering secrets of our distant relatives.

13 Mar 2014

Game-Writing Workshop


Visiting Author Paula Johanson
on Whidbey Island in April 2014

Write Your Own Games
This one-day session shows ways to create your own games – science games, funny jokes, role-playing adventures – that you can use once, or play for years. Includes samples and a handout to get you inspired. Ask questions based on your own needs and goals as well as on the ideas presented.
Saturday April 19 9:00am til noon
To register for this workshop, contact:
Whidbey Island Community Education Center, located at Old Bayview School
5611
Bayview Rd Langley, WA 98260 phone 360.221.5020 http://wicec.us/
Paula Johanson has worked as a writer and editor for over twenty years, teaching writing workshops for community colleges, libraries, and recreation centers. As well as making games for her own family's use, Paula has written game materials for d20-compatible game publishers.

Green Paddler
People who like kayaking, canoeing, and stand-up paddleboarding are people who care about the environment. Kayaker Paula Johanson, writer for the blog KayakYak, will be visiting Langley Library to show us how to be Green Paddlers. Did you ever carry a kayak on a bus? Or a train? Or an airplane? Paula has.
Come handle the folding inflatable kayak and gear used in the Gulf Islands, Ladysmith BC, Toronto Ontario, and the Red Deer River in Alberta. Join us and share ways to reduce your carbon footprint while getting out on the water.
Friday, April 18 at 3:00pm 
To attend this free talk, contact Langley Library at 104 2nd Street Langley WA 360-221-4383

7 Mar 2014

Tales in time: Criccieth Castle

By Marie Powell (Photos by L. L. Melton)

I love castle hopping, and Wales is one of the best places to explore ruins from bygone days. With some 400 castles in about 20,000 square kilometres (8,000 square miles), there's a lot to explore.

Last year I had the chance to see Criccieth Castle, located at the top of a rocky hill overlooking Cardigan Bay, North Wales. According to the Cadw's Criccieth Castle guidebook, the earliest records of the castle date from the 1230s, when Llywelyn ab Iorwerth (Llywelyn the Great) made it a main seat of power in North Wales.

He built the inner ward of the castle, including the twin towers, using a mix of angular stones from the rock around the castle, glacial boulders, with grey mortar made from beach gravel. The D-shaped towers are typical of Welsh native castles, but these twin gatehouses may have also been influenced by castles of the Marcher lords at Cheshire and Montgomery.

The various princes and kings who owned and controlled Criccieth had a hand in adding to its architecture. Although determining the date of a castle ruin might seem straightforward, there is a controversy over who built what part of Criccieth. Experts turn to structural evidence in the ruins to develop their theories and time estimates.

For example, Llywelyn ap Gruffudd (Llywelyn the Last) added an outer ward to the castle. The mortar used in his time is more gravelly, with stones and boulders brought to the site (rather than quarried from the castle rock) along with blue-grey slate. Experts believe the square holes about eight feet from the top mark the height of the towers during the time of the Welsh princes.

Arrow slits that can be seen at the ground level of the towers, as well as at strategic positions throughout the castle, offered a protected spot for archers guarding the castle from attack. Criccieth had several other buildings and towers as well, including one thought to have housed a trebuchet (a machine to throw stones) or a catapult for warding off enemy attacks.

Criccieth fell to Kind Edward I of England in March 1283, and was later held by Edward II (1307-1327) as well. They built up the top of the towers to the height we see today. The square holes held horizontal beams for a fighting platform (or "hourd") projecting from the wall. The English also used castle rock again, but the mortar from this period contains more shells.

Edward II spent over £250 on repairs and refurbishing, according to the guidebook. The castle was finally destroyed in about 1404, during the time of Owain Glyndwr, and was never rebuilt.

A small museum and gift shop at Criccieth tells more of the history and architecture of the castle, with colourful floor plans such as this one.

Another useful resource is the Castles of Wales website, which includes a discussion of the history, geography, architecture, and archaeology of this and other Welsh castles. As well as the guidebook, Welsh Castles by Adrian Pettifer also offers discussion of Criccieth and other castles by area.

Marie Powell is the author of seven books for children, including Dragonflies are Amazing (Scholastic Canada) and a six-book Word Families series (Amicus Publishing). Her second six-book series is expected this fall.


28 Feb 2014

Book Review: It's About Time, by Pascale Estellon

Title: It's About Time: Untangling Everything You Need to Know About Time
Author: Pascale Estellon
Publisher: Owl Kids
ISBN: 9781771470063

Book Source: review copy from publisher

I've published 10 science books for kids since 2012. Nine were "fact" books, dealing with straightforward, concrete information. The tenth is on the scientific method - a way of thinking - and my experience on that project showed me how much harder it is to write effectively about something so insubstantial and abstract.

Is there anything more abstract than time, the subject of Pascale Estellon's latest book?

Starting with one second and working up to one century, Estellon's done a marvellous job of taking the insubstantial and making it concrete. She relates each measure of time to a specific activity young children have already experienced, giving them a solid frame of reference. One second, for example, is the amount of time it takes to turn the page of the book; one hour is how long it takes to mix and bake a pound cake. The recipe for the cake is included, encouraging kids to tackle time in an interactive, hands-on way.

The book also includes questions, activities, and a clock kids can make and use while learning how to tell time. The design is extremely visual - Estellon's illustrations don't just add colour and life to the page, they are used to explain and help kids picture difficult concepts.

The only concept in the book I felt wasn't clearly explained is the Monday's Child rhyme included in the days of the week section - the heading asks kids "What day of the week are you?" without explaining that the rhyme relates to birth day. Unless kids are reading with an adult who's familiar with this rhyme and can explain, they may find this a bit confusing.

Altogether, however, It's About Time is cheerful, appealing, and very effective, and I heartily recommend it.

---

Review by L. E. Carmichael




14 Feb 2014

Penguin Enthusiasm

No, I'm not a penguin scientist -- though I am applying to join an Antarctic expedition as a writer-in-residence. But I did enjoy finding this pair of photos of a penguin who appears to be trying to join an expedition of his own:

What's the Name of That Bird?: A Sampling of Identification Guides (Part II)


by Jan Thornhill 
My 1965 Peterson's Field Guide to Birds

I blame my dad for nurturing my natural propensity to put names to things. He was a walking encyclopedia and knew the names of all kinds of things—of rocks and minerals, of trees and plants, of clouds and bugs—and could easily explain the differences between, say, the flat needles of a hemlock tree and those of a balsam fir (hemlock shorter; fir with two light stripes on the underside). He fell short, though, on the names of birds, and couldn’t differentiate between a Downy Woodpecker and a Hairy one. Understanding that this was a flaw, he bought the family a copy of Peterson’s A Field Guide to the Birds when I was ten.

It was spring thaw when he took me to the Humber River to try it out. We shared the binoculars, but I was given the honour of being Keeper of the Book. Breakup had just happened and the river was swollen and roiling, carrying fast-moving ice floes towards Lake Ontario.


We Were on the River’s Edge When the Awful Thing Happened


A Yellow-rumped, or Myrtle Warbler almost caused
my dad's demise in 1965. (Dan Pancamo)
While trying to find a picture to match the tiny yellow-rumped bird I’d just seen, I did the unimaginable. I dropped the precious book. To my horror, it tumbled down the bank, straight into the freezing Humber. The river was moving fast. And so was the ice. And now, so was the book.

In a family like mine, it was clear to me at a very young age that books were important. I just didn’t know how important until that day.

My dad was no athlete. We didn’t play catch, and I never did see him run. But when that book hit the water and started to float away, he leapt into action. He skidded down the bank, and then—just like a super hero—he pounced onto the nearest ice floe. It tilted precariously, but he maintained his balance. Following the bobbing book, he leapt to the next floe. Then the next. He kept going until the prize was within reach. Somehow he scooped it sopping from the water without falling in himself, then inelegantly danced from one floe to another until he’d made it back to shore.

My dad had just risked his life for a book. A book! Powerful moment. 

The book, of course, was ruined. But no matter. He bought another. Which I still have.

Sibley Guide to Birds


This updated and improved Second Edition
 of the pocket version is due out next month.

Remarkably, that Peterson guide held its position as my birding bible for more than thirty years, and might have remained there if ornithologist David Allen Sibley hadn’t decided to spend ten years hunkered down with watercolours and brushes to paint the 6,600 images of 810 species found in the Sibley Guide to Birds, first published by Knopf in 2000. With multiple depictions showing alternate and juvenile plumages, flight patterns, and comparative perching views, it’s a monumental and irreplaceable work. Though the original edition is too cumbersome to be used comfortably in the field, pocket editions have been available for several years. 




The Warbler Guide


One of the things the Sibley guide has been lauded for is its treatment of the more than fifty species of wood-warbler that nest in North America. These tiny jewels can be challenging to identify, partly because so many of them prefer to spend the bulk of their time flitting amongst the highest leaves of forest trees (hence a birder malady known as “Warbler Neck”), and partly because, by autumn, they’ve traded their fancy, and often brightly coloured breeding plumage for much drabber winter outfits. Making this latter, seasonal task of identification even more difficult is the addition of immature warblers wearing their own muted versions of adult markings. Peterson referred to these duller versions as, appropriately, “Confusing Fall Warblers.”





So what’s a warbler hunter to do? Well, Sibley’s is good, but a new book, The Warbler Guide (Princeton University Press, 2013), completely blows it out of the water. In this unbelievably comprehensive book, Tom Stephenson and photographer Scott Whittle tease warblers apart with a fine tooth comb—not literally, of course, but with more than 1,000 photographs. 
Each species, (presented alphabetically by common name—yes!), is extensively explored with multiple views, close-ups of distinctive characteristics, photographs of comparison species, visual tips on aging and sexing, detailed range maps, and numerous captions that cover behavioural traits. Each species is also given several pages of sonograms to help with identification by song or call. “Quick Finder” spreads show these little beauties from a variety of angles, fantastic resources that are downloadable for free from Princeton University Press.

The Underview Quick Finder from The Warbler Guide that
 will go a long way in reducing "Warbler Neck."


Bird Feathers: A Guide to North American Species



But what if you see a warbler and before you can identify it it flits out of sight, leaving only a falling feather in its wake? Another book comes to the rescue: S. David Scott and Casey McFarland’s Bird Feathers: A Guide to North American Species (Stackpole Books, 2010). The first part of the book has detailed information about avian physiology, conservation, feather morphology, bird flight, tips on flight feather identification, and an explanation of feather colour and iridescence. 
Red-tailed hawk feathers
The bulk of the book, however, shows examples of each species’ right wing feathers, all clearly photographed on neutral backgrounds, along with measurements and range maps. 

Whether you find a stray feather lying at the side of the road, or the fluffy, strewn remains of a predator's kill, this book, like all the others in this post, is a wonderful resource.


  • Peterson Field Guide to Birds of North America, Roger Tory Peterson, Lee Allen Peterson, Houghton Mifflin Harcourt, 2008, 544 pages. ISBN: 0618966145
  • The Sibley Guide to Birds, Second Edition, David Allen Sibley, Knopf, 2014, 624 pages. ISBN: 030795790X
  • The Warbler Guide, Tom Stephenson, Scott Whittle, Princeton University Press, 2013, 560 pages. ISBN: 0691154821
  • Bird Feathers: A Guide to North American Species, S. David Scott, Casey McFarland, Stackpole Books, 2010, 400 pages. ISBN: 0811736180

Click here for Part I: "What's the Name of That Caterpillar?: A Sampling of Identification Guides 




7 Feb 2014

The 50 Greatest Inventions Since the Wheel? Maybe....

In the November 2013 issue of The Atlantic, the Editors present a list of their top 50 inventions since, well, the wheel.

A few years ago, I covered this same ground in my book What's the Big Idea? from Owlkids.


Needless to say, the choice presented in my book were not exactly the same as the ones the Atlantic came up with (and there are more of them). That's partly because I selected inventions based on what's most important to kids.

For example, there's the all-important needle.


The needle you say? Why would kids care about a needle?

Simple. The needle is what allowed our ancestors to survive the brutal cold of the Ice Age in Northern Europe etc. etc. They used it so they weren't totally reliant on furs for clothing. And think about it - if you drape furs around you, they can be a little drafty. You really need something to wear underneath them, something close to the skin that you can layer...

Underwear.

Without the needle, there'd be no underwear. And without underwear, we wouldn't have survived the freezy breezy.

So check out the Atlantic list of inventions for sure, but don't overlook, ahem, what's under-represented. Check out What's the Big Idea? for a real EYE-opener. (get it?)

PSST, while you're at it, you might what to check out my current book, Ode to Underwear! Yes, I have a "thing" for underthings!)