Showing posts with label Heads or Tails. Show all posts
Showing posts with label Heads or Tails. Show all posts

Monday, February 09, 2009

Heads or Tails: Love Story

Mama never forgets her birds,
Though in another tree —
She looks down just as often
And just as tenderly
As when her little mortal nest
With cunning care she wove —
If either of her "sparrows fall,"
She "notices," above.

Emily Dickinson
c. 1860
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Monday, September 29, 2008

Heads or Tails: A Dog That Shakes Off Predators

This very large Turkish guard dog protects the alpacas on the Cedar Brook Alpaca Farm from predators. He patrols the paddocks all night and sleeps all day. He was awake on Saturday because it was Open House at the farm. The dog chases off coyotes and other predators that attack alapacas. He has a large warm barn and a large run for the day time. There are signs on his fence warning people to stay clear of him because he is very protective of his alpacas.
My Cedar Brook Alpaca Farm Set on Flickr.
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Monday, September 15, 2008

Heads or Tails: Amish Blueberry Cake Recipe

Blueberry season is winding down here. It's been a great year! This is one of my favorite and easiest blueberry recipes. I add as many berries as the batter can hold and I never put on the topping. Sometimes I sprinkle the top of the cake with confectioner's sugar. Sometimes I don't. I can't wait to see other people's recipes this week! Happy HoT Day!


Ingredients:
3/4 c. sugar
1/4 c. vegetable oil
1 egg
1/2 c. milk
2 c. flour
2 tsp. baking powder
1/2 tsp. salt
2 c. blueberries, well drained

TOPPING: 1/4 c. butter
1/2 c. sugar
1/3 c. flour
1/2 tsp. Cinnamon

Directions:
Cream together sugar, oil and egg until lemon colored. Stir in milk. Sift together flour, baking powder and salt and stir into creamed mixture. Gently fold in blueberries. Spread batter into greased and floured 9x9 square pan. Sprinkle with topping. Bake for 45-50 minutes at 375°F.

Topping:
Combine with fork or pastry cutter. Crumble over cake batter.
Source Nancy's Kitchen

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Monday, June 23, 2008

Heads or Tails: Line in Lupine

These are macros of lupine Wingnut and I found in Glover while signing up for swimming lessons (to see his photos of the lupine, click here). Above you see the radial symmetry of lupine as you look straight down from the top of the plant.

Mathematically, a line is defined by at least two points in the same plane and is not curved. But we often speak of the line of a figure and that line can be curved as in these last three photos of lupine blossoms.


genus Lupinus

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Monday, June 09, 2008

Heads or Tails: Jack-in-the-Pulpit

Arisaema triphyllum

We saw jack-in-the-pulpit flowers during our Wild Edibles walk, but this photo is from a walk I took on my road a couple of weeks ago. "Jack" is the spadix ("a floral spike with a fleshy or succulent axis usually enclosed in a spathe" according to Merriam-Webster. What's a spathe?) inside the tube that you see here. In the fall, this plant produces brilliant red berries that I photographed last year. The dried root of this plant has been used by Native Americans for colds, coughs, and to build blood. It was also used as a poultice for rheumatism, sores, snakebite, boils, abscesses and ringworm. Root tea was used as an expectorant, diaphoretic, asthma, colds, cough, laryngitis, headaches and as a purgative. This plant is extremely irritating. I would never try any of these remedies without expert advice.

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Monday, June 02, 2008

Heads or Tails: The Legend of Queen Anne's Lace

New foliage of Queen Anne's Lace (wild carrot) taken during the
Wild Edibles
walk on May 24
(Daucus carota)

Queen Anne, wife of James I of England, was an avid lace maker, and is the namesake of the flower. The tiny purple dot in the center represents a spot of blood caused by a needle prick to the queen’s finger, and this tiny sliver of color was thought to cure epilepsy. Black swallowtail butterflies flock to them like cats to catnip. Farmers consider it an invasive weed, and the milk from animals that graze upon it is supposed to taste a bit bitter and carroty. The plant is also called bee’s nest, bird’s nest, crow’s nest, and devil’s plague (seems a bit harsh!). The carrots that we eat today are believed to be derived from this wild variety, and to revert to it when not tended or cultivated. Queen Anne’s Lace roots have also been used as a coffee substitute, like chicory.
from Ohio Perennial and Biennial Weed Guide:
  • 'Daucus' is from 'daukos', which is Greek for carrot.
  • 'Carrot' is Celtic meaning 'red of colour'.
  • The are numerous legends about how this plant became associated with and was named after Queen Anne, wife of King James I of England.
  • Devil's plague was a common name given by farmers who found this weed difficult to control; rantipole means rude and reckless.
  • It is not known if there are benefits associated with having a purple flower located in the center of some flower clusters. A study showed that insects were neither attracted nor repelled by the presence or absence of the flower.
  • The first year roots of wild carrot are reported to be edible, but care must be taken to not mistake poison hemlock for wild carrot.
Queen Anne's Lace is just beginning to grow here but will not flower for quite awhile. I call it the "fractal flower." And making one of these fractals is on my todo list.

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Monday, May 19, 2008

Heads or Tails: Pieces of Twigs Are Home for Caddisflies

These are all examples of caddisflies, collected during an aquatic insect and crustacean field trip on the Missisquoi River by our fifth and sixth graders. You can see the caddisfly emerging from their homes of pieces of twigs, plants and silk that they make. 

Interestingly, caddisflies and stoneflies are signs that the water in which they live is very clean.

Each case that the individual flies make is unique.

This is one of the most fascinating bugs I have ever learned about.

Caddisflies are popular bait for trout fishing.



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Monday, May 12, 2008

Heads or Tails: Any Tom, Dick or Harry Kingbird

I photographed this Eastern Kingbird while it was hunting insects in the beaver bog. Not a great photo, but proof that he was there! You can see more (and similar) photos of him here.

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Monday, April 28, 2008

Heads or Tails: Memories of Bird Walks

This is a turkey vulture in flight over my head last week. Bird walks with Mr. T — in the past and hopefully long into the future — are some of my fondest memories. While he was not present when I captured this vulture (see close-up photos here of this stunning bird that only a mother could love), he is the inspiration for my bird photos and he has given me the gift of his love of birds and birding. Lately, we saw the first eastern bluebird reported in Barton Town this season. Special moments with a special person are memories to cherish.

Why is a turkey vulture called a turkey vulture? Not because they eat turkeys (they would if they came upon a dead one in the woods) and not because they are turkeys (because they are not), but because they have a body that looks like a turkey and they have the head of a vulture.

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Monday, April 21, 2008

Heads or Tails: Directions to Make Fractal Flames

I have an interest in fractals  (shapes that are self-similar). I have moved on to making fractal flames, which you see here. Several bloggers have asked me how to make these flames, so I spent Saturday writing a tutorial for using Oxidizer, the Macintosh fractal flame software. You can see the tutorial here if you are interested. I already need to update the tutorial because I learned more about using the software Sunday when I created these images.

You don't need to know anything about mathematics to create these images! Promise!

I invite you to use Oxidizer if you have a Mac or Apophysis if you have a PC. The tutorial has links for tutorials for Apopphysis and for Flickr groups of people that also create these images. Then join me and others for Friday Fractal to display your fantastic images. It is a very informal group. There is no need for a blogroll (at this time). We use Technorati tags (like you see at the bottom of this post). If you want to view other fractals, click here, here, or the Technorati tag below to see posts of mine and other people. And join us! Just copy the script inside the box below into your HTML of your post and you'll be linked up!



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Monday, April 14, 2008

Heads or Tails: Woodpecker Tips

David at Useless Facts posted Useless facts: More on Brains — The Woodpecker Factor which pointed me to this article at New Scientist, which I have lifted in full because of the humor. I hope you enjoy my photos (I took these shots outdoors, not through the bird window) and information.

Question: How is it possible for woodpeckers to peck so hard without getting brain damage?

Answer: This has been the subject of neurological research more than 20 years ago (The Lancet, 28 February 1976, p 454, Archives of Neurology, 1979, vol 36, p 370).

Shock waves are transmitted less readily in the woodpecker's head than in a human's because the former has a narrow space between the skull and the brain, with very little fluid, and the woodpecker's brain is packed tightly by dense yet spongy bone which buffers the force to the brain. Additionally, some of the muscles in the woodpecker's head contract, which helps to absorb and distribute the shock. Structures from the base of the tongue extend round the brain and may also absorb shocks.

Christopher Gardner-Thorpe, Consultant Neurologist, Exeter, Devon

We haven't discovered more recent studies of the risks of brain damage in woodpeckers than those mentioned by Christopher Gardner-Thorpe, but further references from readers would be welcome. A brief description of the 1979 study, carried out by Philip May, Joaquin Fuster, Jochen Haber and Ada Hirschman, may be of interest. The researchers filmed a tame acorn woodpecker using a high-speed camera capable of recording up to 2000 black and white frames per second. Analysis of the film showed that the impact deceleration when the bird's bill struck the trunk was staggering, sometimes reaching as high as 1200g.

Perhaps not surprisingly, the woodpecker was also seen to close its eyes just before impact, in order to stop its eyeballs flying out!

With repeated decelerations of this magnitude, it's hard to see why the woodpecker does not immediately fall down unconscious, even given the factors mentioned above that help cushion the brain. The secret may be in how the woodpecker hits the tree. The researchers discovered that the woodpecker always keeps its strike absolutely straight. First, it would tap the wood lightly a couple of times to line itself up, and then strike repeatedly with great accuracy, never allowing its head to twist at the moment of impact. This means it avoids rotational forces on its brain, which tend to shear neuronal connections and cause concussion. These are the same forces that can cause serious brain damage to passengers in a car hit from the side in an accident or when a boxer is punched in the head.

The researchers go on to suggest that the woodpecker's approach could be used to help design crash helmets which reduce whiplash rotational injury. Indeed, we may have discovered this once already. The shoulder and neck casings on armour used by medieval knights look as though they were designed to prevent rotational concussive injuries when the wearer was being bludgeoned by a mace.

The researchers also point out that the woodpecker has a natural advantage in resisting brain damage. Its brain is quite small which means that the ratio of brain weight to brain surface area is also small. Therefore, a given impact deceleration force would be spread out over a relatively large area, making its brain better able to resist concussion than that of a human. — Ed


Answer
: We have a picture of evolution in which life strives for, and tends to get closer and closer to, perfection. Perhaps a better picture might sometimes be one in which life manages to get by on whatever can be botched together just well enough to work.

For a bird to bang its face repeatedly against a tree looks like pretty dodgy behaviour, perhaps as dodgy as a mammal walking on its back legs while carrying things with its front legs. A woodpecker might get away with banging his head, just as I might get away with bipedalism. But I wouldn't be at all surprised if he was just as likely to get a headache as I am to get a bad back.

Richard Riscon. Canterbury, Kent

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Monday, April 07, 2008

Heads or Tails: Express? Not!

Our "first day of Spring" was Sunday and I spent hours gadding about in the sun with my camera. My neighbors here were also enjoying the sunshine. The cream colored horse, usually sparkling clean, dozed in the dirt. I remember the first time I saw her lying in the sun during my first spring in this house. Not knowing what horses do, I was certain that she had died. I was actually on my way to tell my neighbors that their horse had died when the pretty horse heard me and stood up. I shamefacedly, but happily, returned home. On days like that day, you'll get nowhere fast if you ride these horses!

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