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This user is from and lives in Costa Rica
This user is Citizen of the World, has set foot in 37 countries,
and has lived in Costa Rica, Brazil, the U.S. and Dominican Republic

Alemania Brasil Canadá Chile Colombia Costa Rica Croacia Cuba Ecuador El Salvador España Estados Unidos Finlandia Francia Greece Guatemala
Haiti Honduras Inglaterra Italia Jamaica México Nicaragua Netherlands Noruega Panama Paraguay Peru Portugal Puerto Rico Uruguay Vaticano Venezuela
My electric cars: 2021 BMW i3 and 2023 BMW iX, Costa Rica (2023).
Dieser Benutzer ist seit
16 Jahren, 8 Monaten und 29 Tagen auf Commons angemeldet.
23.300+Dieser Benutzer hat mehr als 23.300 Bearbeitungen auf Commons.
UTC-5Die Zeitzone dieses Benutzers ist UTC−5.
This user finds copyright paranoia disruptive.
This user respects copyright, but sometimes it can be a major pain.
Dieser Benutzer hat ein Benutzerkonto auf Flickr.
Dieser Benutzer geht von guten Absichten aus und glaubt an höfliche Umgangsformen.
Dieser Benutzer verwendet
Google Chrome.
This user is addicted to traveling .
Babel – Benutzerinformationen
es-N Esta persona tiene una comprensión nativa del español.
en-3 This user has advanced knowledge of English.
pt-3 Este utilizador tem um nível avançado de português.
it-1 Questo utente può contribuire con un livello elementare in italiano.
Benutzer nach Sprache

My contributions
on all Wikipedia projects
Project Edit count
(as of January 31, 2022)
English 43,024
Español 3,449
Português 1,568
Italiano 84
Français 74
Deutsch 71
Wikidata 69
Total edits
on all projects

"The more I learn the more I know there is to know", adapted from Socrates

"Unthinking respect for authority is the greatest enemy of truth", Albert Einstein

"Extraordinary claims require extraordinary evidence", Carl Sagan.

"Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution". Albert Einstein

"Our aim as scientists is objective truth; more truth, more interesting truth, more intelligible truth. We cannot reasonably aim at certainty. Once we realize that human knowledge is fallible, we realize also that we can never be completely certain that we have not made a mistake" Karl Popper

"Passion (in any argument) is inversely proportional to the amount of real information available", Gregory Benford.

"Scientific beliefs are supported by evidence, and they get results. Myths and faiths are not and do not" Richard Dawkins

"If we are uncritical we shall always find what we want: we shall look for, and find, confirmations, and we shall look away from, and not see, whatever might be dangerous to our pet theories", Karl Popper

"... there is no need to know the truth of the actual matters, but one merely needs to have discovered some device of persuasion which will make one appear to those who do not know to know better than those who know", Socrates in Gorgias

"It has become almost a cliché to remark that nobody boasts of ignorance of literature, but it is socially acceptable to boast ignorance of science and proudly claim incompetence in mathematics", Richard Dawkins

There is an almost universal tendency, perhaps an inborn tendency, to suspect the good faith of a man who holds opinions that differ from our own opinions..." Karl Popper

"I do not attempt to convert my opponents - I aim at converting their audience", David Goodman (DGG), Wiki Administrator

"I'm not an atheist and I don't think I can call myself a pantheist. We are in the position of a little child entering a huge library filled with books in many different languages. The child knows someone must have written those books. It does not know how. The child dimly suspects a mysterious order in the arrangement of the books but doesn't know what it is. That, it seems to me, is the attitude of even the most intelligent human being toward God. We see a universe marvelously arranged and obeying certain laws, but only dimly understand these laws", attributed to Albert Einstein.

My Favorite Fathers of Modern Science and Giordano Bruno, the First Martyr of Science

"As long as I have any choice in the matter, I shall live only in a country where civil liberty, tolerance, and equality of all citizens before the law prevail", Albert Einstein

My favorite natural and historical places[Bearbeiten]

Natural sites and phenomena[Bearbeiten]

Harbor of Rio de Janeiro (Guanabara Bay), Brazil. One of the the World's Seven Natural Wonders (CNN).
Mount Everest. One of the the World's Seven Natural Wonders (CNN) (visit pending).
Aurora boreal, one of the the World's Seven Natural Wonders (CNN). Shown in Norway.

Poás Volcano National Park, Costa Rica. Top: Poás Volcano main crater. Bottom: Lake Botos, an inactive crater which last erupted in 7500 BC.

Irazú Volcano, Costa Rica. Top left: Irazú Volcano main crater lake. Top right: Diego de la Haya crater. Bottom: Panoramic view of the main crater.

Archaeological sites[Bearbeiten]

Teotihuacán archaeological site (100 BCE to 250 CE), Mexico, a UNESCO World Heritage site. Top: Pyramid of the Sun, bottom: Pyramid of the Moon. Abandoned between the 7th and 8th centuries.
Tikal, Mayan archaeological site, Guatemala (visit pending).
Machu Picchu, Incan archaeological site, Peru. One of the New7Wonders of the World (visit pending).

Historical cities[Bearbeiten]

Centro storico di Roma (753 BCE), Italy, a UNESCO World Heritage Site, and one of the oldest continuously occupied sites In Europe.
Vatican City (Città del Vaticano) (4th century - 1929), the smallest state in the world by both area and population.
Venezia (5th century), Italy. The lagoon and a part of the city are listed as a UNESCO World Heritage Site.
Oia and Fira, Santorini island (12th - 13th century), Greece. Santorini is one of four islands that remains after an enormous volcanic eruption (between 1600 BCE and 1525 BCE) destroyed the earliest settlements on a formerly single island. Santorini has been voted several times as one of the world's most beautiful islands.
Ciudad Colonial de Santo Domingo (1502), Dominican Republic. A UNESCO World Heritage Site. The oldest permanent European settlement of the Americas.

Favorite cities[Bearbeiten]

Paris, France. Paris is one of the leading global cities (+ Aplha City). The historical district along the Seine in the city center is a UNESCO Heritage Site.
London, England. London is one of the leading global cities (++ Aplha City)
Rio de Janeiro (1565), Brazil. From left to right: Museum of Tomorrow at Praça Mauá waterfront; Ipanema and Leblon; Christ the Redeemer atop Corcovado with Pão de Açúcar in the background; and Copacabana
San Francisco (1776/1856), California, United States. As of 2018, San Francisco is the highest rated American city on world liveability rankings.

My favorite wonders of engineering[Bearbeiten]

Wonders of empirical engineering[Bearbeiten]

The Pantheon, Rome (125 AD). The Pantheon's five-rings coffered dome is still the world's largest unreinforced solid concrete dome. The height to the oculus and the diameter of the interior circle are the same, 43.4 meters.
Gothic cathedrals (12th–14th centuries). The use of the pointed arch, rib vaults and the flying buttress allowed the weight of the roof to be counterbalanced by buttresses outside the building, giving greater height and more space for windows (stained glass, and the rose window) allowing to bring light and color to the interior. From left to right: (1) Choir of Saint-Denis Basilica, considered the first use of all of the elements of gothic architecture (1140-1144); (2) rib vault and rose window, (3) flying buttresses, and (4) the nave of Notre-Dame de Paris (1163–1345); (5) the nave of Westminster Abbey (present church 1245-1376); and (6) rib vault in the nave of Catedral Primada de América, Santo Domingo (1521-1541), the first and the only standing gothic cathedral in the Americas.
Cupola del Brunelleschi, Florence Cathedral (Cattedrale di Santa Maria del Fiore). The dome was built between 1420 and 1436. Florence Cathedral's dome is still the world's largest brick and mortar (masonry) dome. The octagonal dome has 42.05 m in diameter and 45 m wide tambour. The height of the dome is 114.5 m, it stands 52 m above the floor. The dome was built without the use of interior scaffolding supported on the floor (visit pending).

Modern wonders of engineering[Bearbeiten]

Hoover Dam (1936), Nevada-Arizona, a U.S. National Historic Landmark and one of the Seven Wonders of the Industrial World. When nine generators were operational in 1939, the dam's power plant became the world's largest hydroelectricity facility.
Golden Gate Bridge (1937), San Francisco, one of the American Society of Civil Engineers' Seven Wonders of the Modern World. The longest suspension bridge main span in the world from 1937 to 1964.
The modern electric car (1990s to 2010s). From left to right: General Motors EV1 (1996); Chevrolet Volt plug-in hybrid (2010); Tesla Model S all-electric car (2012); BMW i3 BEV/REx (2013); Toyota Mirai hydrogen fuel cell car (2014); and Tesla Model 3 all-electric car (2017). There were over 10 million plug-in electric cars on the world's roads by December 2020.

Top pictures in Wikimedia Commons by usage[Bearbeiten]

Most used in Wiki pages and/or different Wiki languages taken and uploaded by User:Mariordo.

My own banner[Bearbeiten]

User is Citizen of the World, has set foot in 24 countries,
and has lived in Costa Rica, Brazil and the United States