Showing posts with label book by nigel foster. Show all posts
Showing posts with label book by nigel foster. Show all posts

Tuesday, May 14, 2019

Time for reflection on water




If you spend much time on the water in a kayak or canoe, sooner or later you’re likely to be transfixed by reflections. Sitting so low in a kayak, reflections dominate your view of calm water from even quite close to where you sit. It’s easier to see beneath the surface by looking straight down but in the wider view, without polarized sunglasses, then reflections rule. All that lies beneath the silvered surface is rendered largely invisible.



reflections suggest concrete underwater structures, Nigel Foster
Freeways cross over water Seattle


Trees and branches overhanging rivers and canals,  create scenes of pleasing symmetry. There is a similar visual tunnel effect between the two images below despite their very different locations, France and Missool, Raja Ampat.


Kri Kri Studio owner in plane tree tunnel, Canal du Midi France, Nigel Foster
Reflected plane trees, Kristin Nelson on Canal du Midi France
Whisky16 with arching water palms, Misool Indonesia, Nigel Foster
Arching nipa palms, Misool Indonesia
Some reflections appear more constructed than others. The bold reflected shapes beneath bridges with pillars arches and girders, quiver and gently distort as ripples move between the solid structures. I am left with the impression the solid structure exists beneath me, no matter what the actual depth is, or the real nature of the bottom. (for explanation of the green water color, see my Color of Water blog post)

Reflected dock falsely suggests underwater structure, Seattle, Nigel Foster
Illusion of underwater dock construction, Seattle


Neither can I resist an opportunity to pause in the face of semicircular arches that are sucked into visual tubes by reflection. Do the curves really continue beneath the surface? Is this structure a tube, or is that just an illusion? The real bottom may be flat, and just beneath the surface, but it’s difficult to discard the impression that it follows the shape and depth of a tube.

Kanu-Funsport reflection creates tubular illusion, Leipzig Germany, Nigel Foster
Illusion of tubular tunnel, Kanu-Funsport Leipzig Germany
Reflected, concrete girders under a freeway that offer nesting shelter for pigeons and surfaces for clandestine graffiti scribblers create optical illusions of solid structures just beneath the placid surface, but as soon as the surface is disturbed the structures morph into dizzily shifting curlicue patterns.

Illusion of freeway girders beneath as well as above canoe, Nigel Foster
Reflected Girders beneath freeway

ruffled water surface creates surreal patterns under Seattle freeway, Nigel Foster
Girders reflected in wavelets

Straight girders shift in reflection into abstract patterns, Nigel Foster
Closer view of reflected girders in wavelets

The eye sees and the mind attempts to make order of the subtly shifting patterns. Only by taking a snapshot of the reflections does it become easier to see why the patterns are so challenging to follow. Even in a snapshot the crisscrossing wave patterns form such twisted reflections that seen out of context they illustrate a puzzling reality. Serving as Rorschach ink blots, the frozen shapes can conjure all manner of things, but rarely reveal the original object that was reflected. When the image is rapidly moving, what chance do you have of making sense of the shifting tree-ring patterns? 


Reflections appear like the grain in cut wood, Nigel Foster
wavelets create tree-ring style patterns


Ripples in motion

Stainless steel anchors, anchor pockets and scratch plates on ship hulls contrast the warping mirror of water, offering steadier mirrored surfaces. Just as from a flat-water surface an individual facet will reflect simply. However, multifaceted surfaces shatter reflections in a completely different way to water, creating collages of recognizable reflected bits of the surroundings.

Mosaic of reflections from ship's anchor and anchor pocket, Nigel Foster
Collage of reflections around anchor 


Water does something similar, but the effect is repeated many more times over by the procession of ripples each presenting its own set of constantly changing reflections from its uniquely morphing three-dimensional curves. Small undulations across an otherwise smooth surface cause shifting curvilinear shapes; shapes that are echoed in art including art from Papua.

Nigel Kayaks abstract art in water reflections, Seattle
Surreal abstract patterns of reflection in water
Although bridges and tunnels and docks offer some amazing reflections, there’s little more pleasing to me than cruising across flat water when the sky is blue with a few fluffy clouds. Looking ahead I have the sensation of flying high above the clouds, which shape-shift beside me as the wake from my bow warps the surface. Close beside my craft the reflected clouds seem to fade, and I can see through them into the water, perhaps seeing fingers of watermilfoil reaching up toward me, or fish darting away. And there on the surface itself, all around me suspended above the mirrored sky is another world of objects too light to sink, too heavy to fly. Here are insects that can walk on water. Here are floating plants, the leaves of waterlilies, feathers and twigs.


Image from On Polar Tides, Nigel Foster, shows kayak cruising above clouds
Cruising above the sky, Labrador (from the book On Polar Tides)
If you've enjoyed this blog post, find more of my creations on Nigel Foster YouTube channel, and on nigel foster vimeo. You can find my books on my store. I'm also available for presentations and special kayak instruction.
Reflection of canoeist shattered by ripples from bow wake, Nigel Foster
Reflection of canoeist, ceramicist  Kristin Nelson shattered by ripples 
The kayaks glimpsed in this post are by Nigel Foster (Point65 DoubleShot and Whisky 16 and Seaward  Kayaks Legend) 

Thursday, April 13, 2017

The Art of Kayaking meets the Science



My mantra is to achieve the greatest effect with the minimum effort. I find efficiency seductive but to best achieve this I need to start again with the basics. Efficient paddling makes use of the body’s most powerful muscle groups to do the bulk of the work powering the kayak, with good posture ensuring the most effective alignment for performance. 

Good body position and blade alignment make for effective maneuvers


I also try to maximize the traction from my paddle in the water so I can power forward or make smooth turns without wasting energy. I want to make my kayak move forward; I don’t want to use my energy to move water.

Edging into a turn. The blade here is in neutral
 
Science can explain how a kayak moves through water, why it might turn more easily when held at a particular angle or why different turns can be more effective when you lean forward or back. It’s not like rocket science, where you need a huge thrust of energy to push you into space, and complex mathematical equations to navigate to a far off planet.  Instead it’s about things like understanding how when you shift your weight a little to trim your kayak, it subtly changes the effective hull shape in the water. Some maneuvers become more efficient with this alternative hull presentation, so you need less power to make the same maneuver. You can fine-tune your skills more effectively if you not only know how to do it but also why.


Basic science can explain why in some kayaks it doesn’t seem to make any difference whether  you edge into a turn or edge away from it, both seem equally effective, while in some other kayaks you can clearly turn more quickly when edged into a turn, or in others most quickly when edged from a turn. 

It will also explain why you can turn some kayaks more rapidly while reversing than when you are paddling forward. 

It’s a good idea to hone the effectiveness of your paddling skills on flat water where you can focus on mastering the details even if your normal playground is far from flat. It is easier to compare the effect of every nuance once you eliminate the variables of wind, current and waves. With control strokes, begin with the blade close to or in a neutral position, engaging the blade gradually and only as much as you need. 

The blade is lightly engaged for steering

 

After paying attention to the details, the next phase is to add those variables, wind, waves and current one at a time, so you can see how each affects the moves you have practiced on the flat. Practice in wind without waves for example. Now you’ll see how one technique for turning will become far more effective for turning from the wind than another that works best for turning toward the wind. 


When you understand how to get the most effective performance from your kayak in wind alone, or in waves or current alone, then the next step is to combine them, wind and waves together, or all three.

Work on your efficiency in different conditions

Your paddling can become smooth, efficient and effective without you understanding the science behind it. You can still become an artist on the water. But if you question why one move works better than another in a particular situation and understand the reasons behind each effect, then you’ll be able to push your skills into new realms of efficiency. You’ll use the wind, current and waves to your advantage instead of fighting against them. 


I’ll leave you with three questions.  Revisit one of them when you next paddle.


1) Can I improve the efficiency of my body movement for power? For example, can I use my torso more and my arms less? Am I using my legs and feet? 

2) How much do I move water with my paddle, and when do I do this most? Can I reduce this, maybe by slowing my paddle stroke a little, or by adjusting the path of my paddle?

3) Am I working against the waves, wind, and current, or working with? If I can identify a particular situation when I have to work harder than I would like, can I find a way to use less effort in this situation?

The book, The Art of Kayaking offers a lot of useful detail

My new book The Art of Kayaking offers a lot of detail for the inquisitive paddler, explained in a way that is easy to understand. It describes in detail the basic paddle and kayak skills, and then focuses their use toward different rough-water environments. The goal is to achieve more effect with less effort. You’ll also find help for trip planning with weather, charts, buoyage and safety.

Find The Art of Kayaking at store.nigelkayaks.com, (there is a signed copy option) Or support your local bookstore, or order on-line, perhaps at Amazon or Book Depository.

Interested in joining a class to learn more on the water? Please contact me through my web-site www.nigelkayaks.com.