When you look at a river, what do you see? A few flies on top? A fish or two?
Look closer.
Lay down on your chest at the side of the river and stare down into it. Look at a rock or a stick. Not very interesting? Keep looking.
Soon, you begin to notice things that don't seem to belong. Sticks don't come with little tubes of sand attached. What's that black bump? Oh, it's moving. It's... grazing? Every stream holds a tiny alien world, packed with creatures unlike anything we see on land.
Clinging mayfly and stonefly nymphs graze like tiny cattle on the algae and microscopic animals that cover every twig and rock. Sinister damselfly nymphs hunt them with a creepy, deliberate stalking posture reminiscent of both a prowling cheetah and killer robots from the future in some cheap sci-fi flick.
Caddisfly larvae build intricate houses of tiny stones and debris, which the tiny carpenters drag around with them like a shell. Colonies of them gather on various twigs and rocks, little housing subdivisions in a tiny underwater town.
Swimming mayfly nymphs, some of them shaped much like the slimy villain in the Alien movies, dart from place to place with the deftness of little minnows and take up station to catch food drifting by in the current. And below the ground, burrowing mayfly nymphs dig lairs with their powerful tusks from which they emerge only at night to prowl for food. All hope to avoid the gaping jaws of a big, ugly, prowling dragonfly nymph.
Until now, it was hard to observe this underwater world without getting very cold and very wet. But a new website, Troutnut.com, has brought detailed photographs and videos of this intriguing world and its residents to the comfort of your computer desk.
The website was sparked by the sport of fly fishing, in which trout anglers craft realistic imitations of tiny stream creatures from an intimidating mess of fur and feathers, and present their imitations delicately, even artistically. For them, better pictures of the real thing mean better imitations and more trout. But Troutnut.com's quest for more and bigger trout has led to a glimpse at this alien world that anyone can enjoy.
So next time you're walking past a stream, stop to take a closer look. Or head over right now to www.troutnut.com. Either way, you'll be amazed.
On the sloops where I got my basic keelboat lessons, my neck developed a crick from constantly craning back to see what the Windex on top of the mast was doing. When I straightened out my neck, my eyes would fasten on the digital readouts of the knot meter and depth finder. It seemed as though sailing involved so much time monitoring different instruments and gauges that there was no time to appreciate the ride.
What did sailors do before the invention of onboard electronics and gadgets? One thing, I learned, was that they sailed with both ears. When the
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Buying a boat appeals to different people for different reasons. The blue waters of deep seas, rivers and lakes fascinate many of us. We like fishing, sailing, cruising or even living on the high seas. All this is not feasible without a boat. Although, considered as a luxury and beyond the financial reach of a large section of our population, we still dream of owning a boat. A boat loan in UK makes the whole idea of owning a boat look much more affordable. The capital required to purchase a boat might vary according to specifications of size, purpose and
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In the full moon night, on a lovely morning you would like to take your craft, your boat where the cool wind blows. How it steers slowly along the fine film of transparent blue waters. It is very easily your reverie for you dont own a boat yet. With boat loans, you can definitely own one. If a boat is your kind of carrier and money is not in your pocket then boat loans are fit for your selective choice for boats.
Some of the best boat loans are offered in UK at competitive rates and terms matched with personalized
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For thousands of years men have sailed the seas. From the earliest trips by the discoverers and settlers of the Americas, Australia and the Pacific Islands, through Odysseus' voyage to Troy and beyond to the time of Swashbucklers in the Caribbean mankind has made exciting voyages to the far corners of the world.
In those early days hard cold steel and brass protected the men and their ships. Today we have boat insurance, GPS systems, sonar and underwater charts.
While boat insurance is not as glamorous as a fancy cutlass nor as exciting as a cannon it does offer the
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It seems obvious how a sailboat sails downwind: It is pushed along by the wind in its sails. Less obvious is how it can sail upwind or how some sailboats can sail faster than the wind.
Sir Isaac Newton formulated three basic laws that pertain to the motions and accelerations of all objects.
Let us have a look at the third law:
"For any force exerted on an object, an equal but opposite force must be exerted by that object onto whatever exerted the force."
A direct consequence of this law is the conservation of momentum (Momentum equals mass times velocity).
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