Opposite Rotation by Mumtaz Ali

The human eye can process 10-12 frames per second,now if the fan rotate such that in 1/12 seconds,it rotates more than half revolution,then human eye will observe,as it is rotating in opposite direction.The same thing can be observed in wheel rim rotating opposite.Its called aliasing effect.

 Photo ID: SPC422

Published in Science Photo Contest

Lighting Cloud by Nicolas Navas Gonzalez

Category: Scientific phenomena

Description :This is a photo from Colombia. It's a weird storm without other clouds near. It was take without tripod.

Photo ID: SPC369

Published in Science Photo Contest

Lens flare by  Sumayya Mehfooz

Category: Scientific phenomena
Lens flare is the light scattered in lens systems caused by internal reflection and scattering from material in the lens.
Many photographers seem to think that lens flare is something you should try and avoid in your photos, that’s why we have lens shades and other pieces of gear to prevent flare in your images. But when you start to get creative with your photography you’ll  find that sometimes using lens flare can actually be an advantage to your image rather than working against it.
A lens flare is deliberately used to invoke a sense of drama. A lens flare is also useful when added to an artificial or modified image composition because it adds a sense of realism, implying that the image is an unedited original photograph of a "real life" scene.

 Photo ID: SPC435

Published in Science Photo Contest

Science Photo Contest 2014

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Science photo contest partners:  National Academy of Young Scientists (NAYS) Microbiology association of Pakistan