THE LONG VIEW
Background. This week we published a paper that maps our home supercluster of galaxies, named Laniakea (from the Hawaiian words lani, meaning heaven, and akea, meaning spacious or immeasurable). The paper essentially describes a new way to define where one supercluster ends and another begins, and maps our home supercluster.
(For an excellent animated explanation, see this fab video.)
Design challenge. We decided this would make an excellent cover, based on their extended data Fig 3 (second image). There are several key elements to the figure: the rainbow colour scale indicates density (with high density regions in green and red, and low density in blue); velocity flow streams are indicated by the blue and white lines; and the orange band indicates the border of the Laniakea supercluster.
While these visual elements combine to make a very informative figure, I felt that we should create something fresh for the cover that would appeal to a wider audience. Working closely with authors Brent Tully and Daniel Pomarede, we requested a few modifications from which we could build a striking artist conception based on their data.
We initially requested an image from Pomarede that shifted the rainbow density scale to a single dark gradient (bottom image), to more clearly put the scene in space. We took that information and gave it to artist Mark A. Garlick, who polished the image and changed the Laniakea velocity flow streams to a warm glowing colour that would be instantly recognised as light from the many galaxies in the cluster. We also removed the orange line that indicated the Laniakea border and replaced it with a more subtle approach, giving the supercluster a clear shape and with a visible border but in a layered, translucent style.
And finally, we decided to locate ourselves on the map with some fun language (‘you are here’) to draw readers in and inspire a bit of awe.
Looks like a heart.
Fibonacci you crazy bastard….
As seen in the solar system (by no ridiculous coincidence), Earth orbits the Sun 8 times in the same period that Venus orbits the Sun 13 times! Drawing a line between Earth & Venus every week results in a spectacular FIVE side symmetry!!
Lets bring up those Fibonacci numbers again: 1, 1, 2, 3, 5, 8, 13, 21, 34..
So if we imagine planets with Fibonacci orbits, do they create Fibonacci symmetries?!
You bet!! Depicted here is a:
- 2 sided symmetry (5 orbits x 3 orbits)
- 3 sided symmetry (8 orbits x 5 orbits)
- 5 sided symmetry (13 orbits x 8 orbits) - like Earth & Venus
- 8 sided symmetry (21 orbits x 13 orbits)
I wonder if relationships like this exist somewhere in the universe….
These photos are shadowgraphs of a hydrogen flame exploding inside a balloon. The shadowgraph optical technique highlights density and temperature variations through their effect on a fluid’s refractive index. Here we see that the hydrogen flame has a strong cellular structure and is more turbulent than a methane flame. The cellular structure is a sign of an instability in the curved flame front. The instability and accompanying cellular appearance are a result of the complicated transport and reaction of fuel and oxidizer inside the flame. (Photo credits: P. Julien et al.)
Hmm what else could you do with shadow cam
"Our wisdom is all mixed up with what we call our neurosis. Our brilliance, our juiciness, our spiciness, is all mixed up with our craziness and our confusion, and therefore it doesn’t do any any good to try to get rid of our so-called negative aspects, because in that process we also get rid of our basic wonderfulness."
Islamic calligraphy in various scripts
Totally crushing on #arabic right meow
Tibetan Sri Yantra, by Nandaram.
The Sri Chakra or Shri Yantra is a yantra formed by nine interlocking triangles that surround and radiate out from the central (bindu) point, the junction point between the physical universe and its unmanifest source. It represents the goddess in her form of Shri Lalitha Or Tripura Sundari, “the beauty of the three worlds”. Four of the triangles point upwards, representing Shiva or the Masculine. Five of these triangles point downwards, representing Shakti or the Feminine. Thus the Sri Yantra also represents the union of Masculine and Feminine Divine. Because it is composed of nine triangles, it is known as the Navayoni Chakra.
Together the nine triangles are interlaced in such a way as to form 43 smaller triangles in a web symbolic of the entire cosmos or a womb symbolic of creation. Together they express Advaita or non-duality. This is surrounded by a lotus of eight petals, a lotus of sixteen petals, and an earth square resembling a temple with four doors.
The Shri Chakra is also known as the nava chakra because it can also be seen as having nine levels. “Nava” means “nine” inSanskrit. Each level corresponds to a mudra, a yogini, and a specific form of the deity Tripura Sundari along with her mantra.
#merkaba #sacredgeometry #floweroflife
Leonardo Da Vinci illustrated Luca Pacioli’s “De Divina Poroportione” math text with these sketches. This is just one of Da Vinci’s many forays into geometric drawing.