Two sequences that agree for an embarrassingly long time.
Read further…
Inspiring and Creative Resources & Tutorials for Science-Curious People
Two sequences that agree for an embarrassingly long time.
Read further…
Delve into the realm of Sacred Geometry, where circles unveil the elegance of successive square roots from 1 to 6. Extend your exploration with the enigmatic charm of the square root of Phi.
Picture available as prints and merchandise from our online gallery.
Simple demonstration of apparent size and distance… See how the color rings (annuli, in mathematical language) fit snugly.
The Phoenician alphabet is a writing system exclusively representing consonants, requiring readers to infer vowel sounds. Beginning in the ninth century BC, adaptations of this alphabet thrived, including Greek, Old Italic, and Anatolian scripts. Its appealing feature was its phonetic nature, with each sound (including vowels) represented by a single symbol, simplifying learning to only a few dozen symbols.
This is an illusory geometric structure that cannot exist in our 3D world. Let’s Explore its captivating depths and intrigue.
Here’s how to create this impossible structure. Start by drawing two parallel lines spaced apart from each other and divide them into 7 equally spaced lines.
Then follow the visual steps A, B, C, and D illustrated below. At the beginning (fig. A), you will need to replicate the alignment of the 9 parallel lines three times while applying a 60-degree rotation to each one, finally arranging them to form a triangle. Subsequently, follow the visual directions in B and C to obtain the figure shown in fig. D.
At last, you can add color and gradients to the structure as illustrated below.
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Imagine the linear pattern as a hanging rope. Now, removing any one of these four nails will cause the entire rope to fall.
That’s what happens when you fall down a Penrose staircase…
Nature, particularly in plants, features logarithmic and Fibonacci spirals, exemplifying the elegance of natural design and the rhythmic dance of life, encompassing symmetry and other intriguing mathematical phenomena, including recursive functions.
Spiral patterns in plants emerge from their repetitive growth, where each turn closely mirrors the previous one with scaling or rotational adjustments. This growth process, common in nature and known as phyllotaxis, utilizes recursive functions, which can generate logarithmic and Fibonacci spiral patterns.
The binary edition for those affected by number blindness.
The Runic calendar, also referred to as a Rune almanac, served as a perpetual timekeeping tool throughout Northern Europe until the 19th century. Structured with lines of symbols, it marked significant astronomical events and celebrations, including solstices, equinoxes, and Christian holidays. These symbols were often etched onto parchment or carved into various materials such as wood, bone, or horn.
One of the most esteemed examples of these calendars is Worm’s Norwegian runic calendar from 1643, renowned for its bone craftsmanship. Danish Antiquarian Ole Worm featured it in his book “Fasti Danici, universam tempora computandi rationem antiquitus in Dania et vicinis regionibus observatam libris tribus exhibentes.” Although he extensively detailed the winter months in his work, he omitted details regarding the summer season. Fortunately, supplementary insights are provided through ‘runstavs’ and ‘primstavs.’ ‘Runstavs’ served as runic sticks used in divination practices, while ‘primstavs’ were Norwegian wooden calendar sticks primarily employed for timekeeping and weather prediction.