camera challenge{d}: colors

last week i took some photos with "color" in mind.
this particular beach day was rather gray,
and i was so happy to find so much color to cheer me up.

once again, i used only the manual mode of my camera, playing around with the different settings.

this week i want to learn a bit more about these different settings,
and i think i'm better off doing that one at a time.

so, for this week i'm going to figure out the when and why of aperture.
i have referenced my brothers brain for some definitions and explanations here.

the basics of aperture (as i understand them):
* f/number measures the aperture
* the smaller the number, the bigger the aperture, the more light comes in

i will welcome any insight, knowledge, tricks of the trade, etc......