"A composite of artificially colored EM images reveals details within a cylinder of mouse brain tissue, smaller than a grain of sand, that contains 680 nerve fibers and 774 synapses." Via.
A droplet of water impacting a body of water will create a single small cavity (three small cavities shown on the right side of the image). However, multiple droplets of water impacting the surface (colored pink) can open an elongated cavity by impacting the bottom most portion of the cavity sequentially. These impacts maintain enough kinetic energy to keep the cavity open before it begins to collapse, creating an elongated shape, where it appears 12-20 droplets have formed this cavity as indicated by the number of bumps in the cavity wall. The splash crown can be seen above the surface as it breaks up into small droplets that spread radially and upward. Most liquid streams falling far enough will break up into these types of droplet chains mainly due to surface tension as explained by the Plateau-Rayleigh instability. These types of cavities are found in many places in nature, for instance, water streams in sinks or urination. Via.
Elemental is an elegant re-design of the Periodic Table of the Elements by Joseph Perry
Perry on his project:
Circular interpretation of the classic Periodic Table, 1869. The print was inspired by my love of both crisp, modern infographics and my every-growing collection of vintage science ephemera. The table is designed to be read from the centre outwards in a clockwise rotation whilst still preserving the function of Mendeleev’s original beauty.
Fetal X-ray of a dolphin
Dolphin females ovulate only 2-4 times a year (affected by water temperatures, food and other environmental and social factors). Dolphins like humans, have sex not only with the aim of generating progeny but also as a way to generate strong ties.
The gestation of a dolphin lasts 1 full year (ie 12 months in the belly).
via Ardea Iniciativas y Estudios Ambientales