Category Archives: Science

Surfacing

Two resident killer whales or orcas on the move. These are the most commonly sighted of the three populations ( residents, transients and offshores ) in the coastal waters of British Columbia. They are the largest member of the dolphin family. Residents’ diets consist primarily of salmon, and have extremely tight family units called ‘matrilines’ and each matriline has its own distinct calls. You can see the saddle patch behind the dorsal fin which helps in killer whale identification. This was the pioneer work of the late Dr. Michael Bigg. Seeing orcas in the wild is a humbling experience. Click on the image to see a larger version.

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Posted in British Columbia, Inspiring, Science, Summer, West Coast, Wildlife | Leave a comment

Arctic Tern and Chick

The Arctic Tern is a seabird that migrates every year from Antarctica to its Northern breeding grounds. I took this photo last summer in Iceland, which means the adult had migrated a distance of 70,000 kilometres. The Arctic tern sees two summers each year and their migration is one of the longest in the animal kingdom. The average Arctic tern lives about twenty years, however, National Geographic and the University of Alberta concluded in 2010 that more than 50% of the species will live past their 30th birthday. National Geographic calculated that during the lifespan of 30 years, an Arctic tern would have migrated over 2.4 million kilometres, the equivalent of traveling from Earth to the moon over 3 times. Click on the image to see a larger version.

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Antarctica: A Year On Ice

This evening I was fortunate to see the documentary movie Antarctica: A Year On Ice. The film was directed by Anthony Powell and it looks at the lives of people who live at the McMurdo Station year round. In the Winter they have to endure four months of never ending darkness. It was visually stunning and I enjoyed the time lapse photography. It’s a dream of mine to one day take images in Antarctica.

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Posted in Inspiring, Night Photography, Photographers, Science, Travel, Winter | Leave a comment

Turquoise Blue

Summer will soon be here and I look forward to exploring western Canada and taking some images with my camera. The beautiful turquoise blue colour of this glacial lake in the Canadian Rockies is caused by the refraction of light off the rock flour which is deposited on a continual basis. I was fortunate to be there very early in the morning last summer.

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The Earth at Night

This video is composed of images taken by astronauts aboard the International Space Station. It shows the lights from major cities, lightning and the Aurora Borealis. It’s simply amazing.

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Super Moon

© Jens Preshaw

Last night was an amazing evening for photographer’s to be outside with their cameras. It was a rare combination of clear skies and a ‘Super Moon’ or ‘Perogee Moon’. The full moon was at its closest point to the Earth and was 14% bigger and 30% brighter than any of the other full moons in 2012. There was also the highest high tides and lowest low tides during this time, although the difference was only a few centimeters. The image above is a 30 second exposure of the Coast Mountains bathed in the moonlight.

Posted in British Columbia, Night Photography, Science, West Coast | Comments Off on Super Moon