Photo Researchers ftp March 2011

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 5 of 11.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 5 of 11.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 7 of 11.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 8 of 11.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 9 of 11.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 10 of 11.

Yellow and blue food dye, in a vase filled with water, mixed to make green. 11 of 11.

Yellow and blue food dye settling into a vase filled with water. 1 of 5.

Yellow and blue food dye settling into a vase filled with water. 2 of 5.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 3 of 5.

Yellow and blue food dye, in a vase filled with water, starting to mix to make green. 4 of 5.

Yellow and blue food dye, in a vase filled with water, mixing to make green. 5 of 5.

Red food dye settling into a vase filled with water. 1 of 4.

Red food dye settling into a vase filled with water. 2 of 4.

Red food dye settling into a vase filled with water. 3 of 4.

Red food dye completely settled into a vase filled with water. 4 of 4.

Blue food dye settling into a vase filled with water. 1 of 5.

Blue food dye settling into a vase filled with water. 2 of 5.

Blue food dye settling into a vase filled with water. 3 of 5.

Blue food dye settling into a vase filled with water. 4 of 5.

Blue food dye completely settled into a vase filled with water. 5 of 5.

Close up of bubbles created by seltzer water.

A pine cone found in Wilton, Connecticut.

Color enhanced transmission electron micrograph showing a cell from Red Algae.

Color enhanced transmission electron micrograph showing a cell from Red Algae.

Color enhanced Transmission Electron Micrograph (TEM) of common bean plant (Phaseolus vulgaris) differentiating the xylem and phaseolus vulgaris. Magn...

Color enhanced Transmission Electron Micrograph (TEM) of common bean plant (Phaseolus vulgaris) differentiating the xylem and phaseolus vulgaris. Magn...

Color enhanced Transmission Electron Micrograph (TEM) of common bean plant (Phaseolus vulgaris) differentiating the xylem and phaseolus vulgaris. Magn...

Color enhanced scanning electron micrograph (SEM) of transverse section of Pea stem, showing vascular bundle. Typical dicotyledon. Magnification 150x.

Color enhanced scanning electron micrograph (SEM) of transverse section of Pea stem, showing vascular bundle. Typical dicotyledon. Magnification 150x.

Color enhanced micrograph of the transverse section of tannin cell from and eastern white pine needle (Pinus strobus), showing a huge tannin deposit i...

Color enhanced micrograph of the transverse section of tannin cell from and eastern white pine needle (Pinus strobus), showing a huge tannin deposit i...

Color enhanced micrograph of the transverse section of tannin cell from and eastern white pine needle (Pinus strobus), showing a huge tannin deposit i...

Color enhanced scanning electron micrograph (SEM) of transverse section of the collenchyma, thick walls, no intercellular spaces. Magnification 900x @...

Color enhanced scanning electron micrograph (SEM) of transverse section of the collenchyma, thick walls, no intercellular spaces. Magnification 900x @...

Color enhanced scanning electron micrograph (SEM) of transverse section of the collenchyma, thick walls, no intercellular spaces. Magnification 900x @...

Color enhanced scanning electron micrograph (SEM) of the transverse section of the xylem showing two vessels. Magnification 4000x @ 10x8 in print size...

Color enhanced scanning electron micrograph (SEM) of the transverse section of the xylem showing two vessels. Magnification 4000x @ 10x8 in print size...

Color enhanced scanning electron micrograph (SEM) of transverse and longitudinal sections of the xylem of charcoal. Micrograph shows large vessels wit...

Color enhanced scanning electron micrograph (SEM) of transverse and longitudinal sections of the xylem of charcoal. Micrograph shows large vessels wit...

Color enhanced scanning electron micrograph (SEM) of transverse and longitudinal sections of the xylem of charcoal. Micrograph shows large vessels wit...

A horseshoe magnet and a rectangular magnet attached to each other by iron filings.

Iron filings magnetically attached to a horseshoe magnet.

A straw in a wine glass displaying refraction.

Mold and bacteria that has formed in a mug.

Iron filings placed on top of a piece of paper with two rectangular magnets underneath it. The magnets have north and south ends. In this photo, the m...

Iron filings placed on top of a piece of paper with two rectangular magnets underneath it. The magnets have north and south ends. In this photo, the m...

Iron filings placed on top of a piece of paper with a rectangular magnet underneath it.

Iron filings placed on top of a piece of paper with a rectangular magnet underneath it.

Iron filings placed on top of a piece of paper with a rectangular magnet underneath it.