mucholderthen:

Microphotography as Art
Confocal image (extended focus Z stack)

Embryo of the dwarf cuttlefish
Sepia bandensis
Stained with phalloidin (F-actin; green), DAPI (nuclei, blue), and anti Pax 3/7 (MAb DP312, red).

The developing cuttlebone (purple) and eyes (yellow) were rendered using the DIC image collected during the confocal scan. The F-actin staining (green) reveals the developing musculature and brain, while Pax 3/7 (red) is expressed in a subset of neurons in the brain as well as two patches of epithelia in the mantle and portions of the arms and tentacles.

The cuttlebone (purple) is a chambered, gas-filled internal shell made of aragonite that provides buoyancy control. Within each eye (yellow), the developing lens is seen as an internal sphere.

Seven of the eight arms are visible along with the two tentacles that have sucker-covered ends.

 (via the Node)

See also Science Daily on dwarf cuttlefish

thouhastablog:

thinkaboutelephants:

Agate

These are such nice pictures!

Thank you! ^_^

daxxxx:

Angkor Wat, Cambodia by klOrklOr

(via acidburn42)

Agate

fuckyeahfluiddynamics:

When a drop falls from a moderate height into a shallow pool, its impact creates a complicated pattern. The photo above is a composite image showing a top-down view 100 ms after such an impact. On the left side, the flow is visualized using dye whereas the right shows a schlieren photograph, in which contrast indicates variations in density. Both methods show the same general structure - an inner vortex ring generated at the edge of the impact crater and formed mostly of drop fluid and an outer vortex ring, consisting primarily of pool fluid, formed by the spreading wave. Both regions show signs of instability and breakdown. (Photo credit: A. Wilkens et al.)

(Source: heythereuniverse, via semphotographs)

“Crazy Lace” Agate

eocene:

Fluorite by patrickkuhl on Flickr.

(via acidburn42)

(via acidburn42)

Agate

Scanned for optimal magnification and even illumination.

Agate