Parametric curves by[R-D]

La mia arte matematica. Queste figure ricordano vecchi merletti, solo che sono ottenute attraverso  equazioni.


(Reblogged from visualizingmath)

Into the Woods

When you go into the woods, my daughter,

I want you to remember these things.

The creepy crawlies, the fuzzy woolies, and the venomous fliers

all serve a purpose

Treat with kindness and respect

as you would any human object

Don’t feed the animals

for our food is not good for them

Leave no detritus behind

for it is not natural in their environment

These are the ways of our people

Who once owned these very woods

that were driven out by greed and lust

Land is important, each creature owns their own

and we are trespassing on their land for now.

But if it please you, 

while you can,

draw and doodle the creatures that inhabit

these woods.

Take pictures in your mind

write verse that their kind inspires 

within you

Breathe fresh air 

and toss first world cares. 

For we will not know when 

nature calls upon us to return to her.



Here’s what’s been happening with the Corpse Flower over the past six days. Getting closer to bloom time!


(Reblogged from wnycradiolab)


Need an underwater demolition expert? Meet the pocket-sized peacock mantis shrimp. Its claws can move so fast that they shatter clam shells—and generate light. Our latest podcast has more tales about this tiny terror!

(Reblogged from montereybayaquarium)


"They take first a crooked piece of iron, and with it draw out the brain through the nostrils, thus getting rid of a portion, while the skull is cleared of the rest by rinsing with drugs; next they make a cut along the flank with a sharp Ethiopian stone, and take out the whole contents of the abdomen, which they then cleanse, washing it thoroughly with palm wine, and again frequently with an infusion of pounded aromatics…" -Greek historian Herodotus describes the process of mummification in Egypt (trans. Rawlinson).

Shown here is an extraordinarily well preserved Egyptian mummy at the Louvre. This man lived during the Ptolemaic Period, and his name can be read as either Nenu or Pachery. The body has been sophisticatedly wrapped in strips of linen, and the mummy is covered with a cartonnage. Included here is a mask, an apron across the legs, and a collar over the chest.

Rigault Patricia from the Louvre provides the below description. This is only a section of the full write-up, you can read the rest here if you wish.

A body preserved for eternity

Not everyone in ancient Egypt had access to the funerary practices that ensured eternal life, and many people had to settle for a simple pit in the desert and a few modest offerings. For the more fortunate, preserving body provided an additional guarantee of survival in the afterlife. It offered a new support for the various elements of the living being that were dispersed at the time of death. Although the earliest mummies were little more than bodies wrapped in linen strips dipped in resin, more sophisticated methods soon developed; mummification procedures were highly perfected by the New Kingdom.

Although the number of mummies increased from this period on, the quality of the work tended to decrease. Nevertheless, mummies from the Greco-Roman period are often remarkable for the highly subtle designs formed by the interwoven linen strips. Depending on the period, a mummy could be covered a clothing, a net of beads, a mask, or a decorated wooden plank or cartonnage. During the Ptolemaic Period, various cartonnage elements were arranged on the mummy before it was placed in the coffin. 

Courtesy of & currently at the Louvre, France, N 2627. Photos by: Massimo Palmieri (1), Yann Caradec (2 & 3, cropped), and Oleg Ы (4).

(Reblogged from science-junkie)


A Leidenfrost droplet impregnated with hydrophilic beads hovers on a thin film of its own vapor. The Leidenfrost effect occurs when a liquid touches a solid surface much, much hotter than its boiling point. Instead of boiling entirely away, part of the liquid vaporizes and the remaining liquid survives for extended periods while the vapor layer insulates it from the hot surface. Hydrophilic beads inserted into Leidenfrost water droplets initially sink and are completely enveloped by the liquid. But, as the drop evaporates, the beads self-organize, forming a monolayer that coats the surface of the drop. The outer surface of the beads drys out, trapping the beads and causing the evaporation rate to slow because less liquid is exposed. (Photo credit: L. Maquet et al.; research paper - pdf)

(Reblogged from fuckyeahfluiddynamics)


Last night, our Instagram community was out in full force to help us celebrate the first anniversary of our Blacktip Reef exhibit! Thanks to everyone who made our first-ever InstaMeet so special/successful! 

To see more photos from last night’s #ReefMeet, click here.

(Reblogged from nationalaquarium)


A collection of lightning images from NW of OKC last night. These shots were all taken just outside of Okarche, OK looking at storms as the sun set behind the camera. A beautiful summer storm shoot!

(Reblogged from tornadotitans)
(Reblogged from joelatlife)
(Reblogged from joelatlife)