How does that light work underwater???

Taken in Antartica. 

Elements of Art

Texture: the quality created by the combination of the different elements in a work of music or literature.

Form: The form pertains to the volume or perceived volume

Line: pertains to the use of various marks, outlines and implied lines in artwork and design.

Color: the element of art that is produced when light, striking an object, is reflected back to the eye.

Value: Value refers not only to the use of lightness and darkness in a piece of artwork,but also in the Black and White spectrum

Shape: Shape pertains to the use of areas in two-dimensional space that can be defined by edges

Principles of Design

Space: A shape is defined as a two or more dimensional area that stands out from the space next to or around it due to a defined or implied boundary, or because of differences of value, color, or texture

Repetition: works with pattern to make the work of art seem active.

Balance: the distribution of the visual weight of objects, colors, texture, and space.

Emphasis: he part of the design that catches the viewer’s attention. Usually the artist will make one area stand out by contrasting it with other areas

Movement: the path the viewer’s eye takes through the work of art, often to focal areas. Such movement can be directed along lines, edges, shape, and color within the work of art.

Pattern: the repeating of an object or symbol all over the work of art.

Proportion: the feeling of unity created when all parts (sizes, amounts, or number) relate well with each other.

Rhythm: created when one or more elements of design are used repeatedly to create a feeling of organized movement. Rhythm creates a mood like music or dancing.

Unity: is the feeling of harmony between all parts of the work of art, which creates a sense of completeness.

Variety: he use of several elements of design to hold the viewer’s attention and to guide the viewer’s eye through and around the work of art.

The Top 10 categories of photography I'd like to focus on...

(Not in any particular order)

1. Underwater photography
2. Food photography
3. Time-lapse photography
4. Nature photography
5. Adventure and action photography
6. Night Photography
7. Astrophotography
8. Event photography
9. Sports photography
10. Aura photography

5 Pros for Print Photography

1. Lower Initial Cost
2. Better at capturing detail in whites and blacks (dynamic range)
3. More forgiving of minor focusing details
4. More forgiving of exposure problems
5. Film is still higher resolution

5 Cons for Print Photography 

1. These cameras are generally heavier
2. Film can take up a lot of space
3. Film is a continuing cost
4. Film must be developed before viewing
5. Unless there is a darkroom, you are dependent on the lab to develop images

5 Pros for Digital Photography 

1. Cameras are generally lighter
2. One memory card can store more images than a dozen rolls of film
3. Images can be viewed immediately
4. You can edit your images
5. You can choose which images you want to print

5 Cons for Digital Photography

1. Higher initial cost
2. Can easily lose detail in whites and blacks
3. Memory cards are small
4. Less forgiving of exposure problems
5. Requires battery to function

http://photography.about.com/od/filmvsdigital/a/FilmVsDigital.htm

Aperture: a space through which light passes in an optical or photographic instrument, especially the variable opening by which light enters a camera

Shutter Speed: the amount of time that the shutter is open. Shutter speed is measured in seconds – or in most cases fractions of seconds. The bigger the denominator the faster the speed (ie 1/1000 is much faster than 1/30)

ISO: When you change your ISO setting, you're adjusting your camera's sensitivity to light.ISO settings can be anywhere from 24 to 6,400 (or higher), and these numbers have a direct relationship with the device's sensitivity, so a lower setting makes it less sensitive and a high setting makes it more so

I don't know how Neil Armstrong took this picture, but it's phenomenal.