From: Istoria E Dimostrazioni Intorno Alle Macchie Solari E Loro Accidenti Comprese In Tre Lettere Scritte

St. John, US Virgin Islands

We have three colored segment in this animation. Surprisingly the length of the longest one is always the sum of the length of the two smaller ones.

This is actually a very special case of Ptolemy’s theorem. The theorem gives a connection between the sides and the diagonals of a cyclic quadrilateral. In this case the length of the dashed lines is equal so the theorem can be simplified to the statement above. 

Gloomy Wetland

by Emiliano Arano

✧･ﾟ♡*don't forget to stay hydrated*♡✧･ﾟ✧

I have finally found spare time for diving .. Can't live far from Aqua 🌊💦

Comb jellies—also known as ctenophores—come in a wide range of shapes and sizes. Many are transparent, but some deep-sea species, like the abyssal comb jelly, Beroe abyssicola, are ruby red or deep purple in color. So far, scientists have described approximately 200 ctenophore species.

Comb jellies swim by flicking hair-like ctenes back and forth. When the lights of our submersibles illuminate an abyssal comb jelly, the ctene rows diffract the light into the colors of the rainbow, creating those dazzling disco lights.

Most animals in the midnight zone produce bioluminescence. The abyssal comb jelly has a scarlet stomach that absorbs the light produced by meals digesting in its gut. The red pigment absorbs blue-green bioluminescence, keeping Beroe hidden from predators. Many other deep-sea jellies employ a similar strategy. Learn more about these dazzling denizens of the deep on our website.

The Algorithmic Beauty of Plants, Aristid Lindenmayer and Przemysław Prusinkiewicz.

You can freely read it here.

Robotic Split Fingers from the Anime: Ghost in the Shell - Part II

These are a set of robotic appendages characterized by a distinct split, allowing them to move independently. These mechanical digits are part of a cyborg's prosthetic hand, serving functional and aesthetic purposes.

Check out more on my YouTube channel.