Happy Pi day!

This is just the first post for today. There’ll be two more, so be sure to check them out later if you miss them!

Here’s an arc-length parametrization of a closed curve for the Greek lowercase letter pi, famously used for the circle constant, π = 3.1415926535897932384626… (that’s what I bothered memorizing!)

Arc-length parametrizations are also called unit-speed parametrizations, because a point moving along the path will move with speed 1: the point moves 1 unit of arc-length per 1 unit of time.

It is generally very hard, if not impossible, to find this parametrization in closed form. But it always exists for nice continuous curves. Since it has some pretty cool uses, just knowing it exists is a powerful enough tool for mathematicians to use it on other cool theorems.

Using computers, we can usually approximate it numerically to any degree of accuracy we desire. The basic algorithm is pretty simple: just make a table of arc-length for each value of t. Then, the unit parametrization is just reading the table in reverse: find t given arc-length. Some interpolation is usually necessary.
Nordic scientists test the first non-invasive tagging on cetaceans in Loro Parque

Loro Parque strengthens its commitment to research by hosting the first non-invasive tagging test on cetaceans by placing an innovative belt at the end Keto’s tail.

This pioneering study, conducted today in OrcaOcean by Icelandic and Danish scientists, consists in confirming the viability of the device and verifying that it does not create any disturbance on animals’ skin. The final goal of this procedure is to mark humpback whales in the wild.

Methodically, the concept features a belt placed at the animal’s tail that includes a number of sensors to measure basic parametres. This will provide data for further studies on geolocation, feeding behaviours and vertical movements of the animal and many other aspects.

Furthermore, these innovative “tagging” will be capturing and processing unique oceanographic data. This data will then be used to evaluate certain issues related to climate change and the main objective of the effort is to set up a network of sensors using humpback whales in different locations around the world. This unique tool will allow learning more about both their biology and obtain information about the climate on a global scale.

The results of the test performed on the orca Keto have been satisfying: it has not caused any problem on animal’s skin and it has been ascertained that it does not affect the movement of the animal – the innovative material of the belt is flexible, impermeable and does not create friction.

As the success of the test in Loro Parque has been confirmed, the scientists will perform the tagging of two humpback whales in Iceland, whose collected information will be used to know more about the migration processes of these cetaceans.

Dr. Javier Almunia, Deputy Director of Loro Parque Fundación, and Rafael Sánchez, Head Trainer of OrcaOcean, viewed positively the initial viability of a non-invasive marking system in comparison to the traditional tagging, in which harpoons are used that cause discomfort and potential injuries to the animal.

Without this kind of tests, it would not be possible to determine that the design is appropriate for use. Therefore, it has been noted that Loro Parque’s orcas contribute to scientific research and to data gathering that benefit cetaceans in the wild, performing a role of ambassadors of their species in the nature.

Study done on Loro Parque’s Keto to try out new tagging methods for humpback whales. In this particular case, a belt is attached to the tail that takes information.

anonymous asked:

my main beef with the ace community is how they cant even decide what being ace means. they dont experience sexual attraction. OH but some of them still have sex! but sex is gross. and if you dont think about it 24/7 you're ace. its so... extra

the absolute majority of population is ace using the parametres

Tools of the Trade: 10 Wooden Workshops Across the World

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Workshops are designed as spaces to tinker, craft, and fabricate. A humble typology by nature, they house various tools and resources to support the act of making. Used throughout history to assemble new technologies and construct clever innovations, workshops provide a welcomed retreat for invention and reflection. While usually simple in form and intimate in scale, workshops can include diverse programs and equipment. They may also become communal places for storage, repair, and re-imagination. Sited in the heart of dense urban environments or formed within rural contexts, workshops are found the world over. They remain a universal typology for human creation. As technology pushes the boundaries of craft and production, including advances like rapid fabrication, ubiquitous computing, and parametric design, workshops continue to be used for assembly and testing new ideas. The following collection draws together diverse workshop spaces from the Architizer database, projects both private and public in nature. Focusing specifically on wood, the collection looks at the material’s application as cladding, structure, and interior surfacing within these small-scale spaces. While the following projects each explore unique relationships between building envelopes and open-floor plans, they all establish a strong continuity between exterior and interior conditions. Together, they begin to … Eric Baldwin

Parametric Bench.
Designed by @hamithz in #rhinoceros3d & #grasshopper3d please leave comments and give me your ideas 🙏🏼
#bench #benching
#fluidity #architectureschool
#architecturephotography #architecturedesign
#hypersurface #architectureoffice
#arc_only #architectureape
@arc.only @architectureape

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INTELLIGENT TECTONICS V1.0 winning design which will soon begin the process of full construction.

Designed by: Ertunç Hünkar, Sebastian Comanescu, Adrian Auth

Taught by:
Boyan Mihaylov of DesignMorphine and Joris Laarman Lab
Georgi Kazlachev of Studio Tomás Saraceno

#grasshopper3d #keyshot #parametric #generative #algorithm #design #art #architecture #sculpture #superarchitects #nextarch #architecturelovers #mesh #3d #model #computational #geometry #shape #TalentedPeopleInc #next_top_architects #rhino #fabrication #pavilion #workshop #build #wood

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