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Artist, content creator, and civil engineer.
Sidewalk window in Coimbra, Portugal. Photo by the author.

Blockchain and NFT

“The blockchain is an incorruptible digital ledger of economic transactions”

Cryptocurrency is a digital or virtual coin secured by cryptography, which makes it next to impossible to counterfeit.

A cryptocurrency or “crypto” is a digital currency that can be used to buy goods and services. It uses an online ledger with strong cryptography to secure online transactions.

Much of the interest in these unregulated currencies is to trade for profit, with speculators at times driving prices skyward.

They have their own store values and are designed to use as a medium of exchange for buying goods or…

Distorced… twice cut Möbius strip: one Möbius strip, one non Möbius strip. Glitch by the author.

It’s a surface with only one side and one boundary.

An infinity symbol is the möbius strip's representation.

The Möbius strip was created by the German mathematician and astronomer August Ferdinand Möbius in 1858.

In mathematics, a Möbius band, strip, or loop, is a surface with only one side and only one boundary curve. The Möbius strip is the simplest non-orientable surface.

For more than 160 years the Möbius strip has been an object that defies the laws of physics.

You can make a Möbius strip with a piece of paper and tape.

If its full length were crawled by…

Image by Rawpixel.

A QR code is a Quick Response code.

A QR code (Quick Response code) is a type of the matrix barcode (or the two-dimensional barcode invented in 1994 by the Japanese automotive company Denso Wave.

Denso Wave produces automatic identification products (barcode readers and related products), industrial robots, and programmable logic controllers.

What is QR stand for?

Quick response.

The barcode holds information horizontally and the QR code does so both horizontally and vertically. This enables the QR code to hold over a hundred times more information.

How does QR code work?

Basically, a QR code works in the same…

Photo by Clint Adair on Unsplash

A guide for you to understand a little more about blockchain technology.

A Blockchain is a chain of blocks that contain information.

Blockchain is the technology behind Bitcoin, Ethereum, Litecoin, and all other cryptocurrencies. Also behind NFTs marketplaces.


Cryptocurrency or crypto is binary data designed to work as a medium of exchange.

What is the medium of exchange?

In economics, a medium of exchange is any item that is widely accepted in exchange for goods and services.

In modern economies, the most commonly used medium of exchange is currency… Dollar, Euro, Brazilian Real, and more.


A currency in the most specific sense is money in any form when in…

Sculpture Igloo di pietra (1982) by Mario Merz in KMM sculpturepark/The Netherlands.

It’s poor art. Not exactly…

“Arte povera was a radical Italian art movement from the late 1960s to 1970s whose artists explored a range of unconventional processes and non-traditional ‘everyday’ materials.” ~Jannis Kounellis.

This artwork is a fashion inspiration…

Eduardo Nery. Painel de azulejos, 1987–91 estação de metropolitano do Campo Grande, Lisboa.

Azulejo is the Portuguese and Spanish word for painted tiles.

Azulejo or Tile is a thin piece of ceramic, usually square, in which one side is glazed, resulting from the firing of a coating commonly known as enamel, which becomes waterproof and shiny.
This shiny face can be monochromatic or polychromatic, smooth or embossed.

I love the monochromatic in white and blue, the old ones also others with more contemporary style.

Azulejos or Tiles are mostly used in large numbers as an element related to architecture in the interior or exterior surfaces or as an isolated decorative element.

The ceramic…

I Give You the Green Light… For You And Me.

A green light is the universal symbol of permission to go…

Photo by Pawel Czerwinski on Unsplash

Greenlight for you to call me

For you to say something

Anything is possible

To go, to run, to paint

The future you want

Between flowers and love and art

A fly sitting on one of the ripe pears on a tree.

He Does What? He does something unusual under the pear tree. His brother told me that.

Every day he sits under that pear tree. He reads or daydreaming. It seems that the tree is his only friend.

I decided to write this because he loves that tree and I’ll help him to know more about it, … I’m sending it to him as a “birthday info gift”.

Vintage rose pattern, botanical and fruits illustration.

It’s a photo-realistic drawing showing details of the plant.

Botanical illustration is the art of showing the form, color, and details of plant species.

They are frequently made using watercolor on paper and more recently they’re digitally made using an iPad.

Botanical illustration is the precise image representation of plants and plant traits for a scientific purpose.

They must be scientifically accurate but often also have an artistic component It may be printed and or sold as an original work of art.

They’re usually made by a botanical illustrator in collaboration with a scientific author.

Lisbon in the mid-18th century, Portugal.

It is common to call the people of Lisbon “Alfacinhas”.

A term that comes from early Lisbon, which was famous for growing lettuce.

Alfacinha is a term to denote a person from Lisbon, the etymology of which is unclear.

The first known reference was in the mid-19th century, in the book Travels in My Land by Almeida Garrett (1846).

Regia Marinho

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