Picture of the day Theodore von Kármán (1881–1963) was a Hungarian-American mathematician, aerospace engineer and physicist who worked in aeronautics and astronautics. He was responsible for crucial advances in aerodynamics characterizing supersonic airflow. The human-defined threshold of outer space is named the Kármán line in recognition of his work. This 1959 photograph shows von Kármán (left) joined by United States Air Force and NASA officials while inspecting two missile models used in the high-velocity, high-altitude wind tunnels at Arnold Air Force Base. The missiles shown are the AGARD-B and the Atlas Series-B.Photograph credit: United States Air Force; restored by Chris Woodrich Archive – More featured pictures... To include this picture of the day on a page, add the text {{pic of the day}}.

Tobie Goedewaagen

• ... that Tobie Goedewaagen (pictured), a minister under the Nazi occupation government, fled the Netherlands with his belongings in a bedspread?
• ... that sixteen-year-old Lisa Andreas, who represented Cyprus in the Eurovision Song Contest 2004, was that year's youngest contest entrant?
• ... that Chris Patrick is one of seven Stanley Cup champions in his family?
• ... that the Coon Rapids Dam on the Mississippi River is the northern terminus of the river's navigable portion?
• ... that musician Henry Donch witnessed the assassination of Abraham Lincoln and served on the grand jury that indicted the assassin of President Garfield?
• ... that the Pokémon species Lucario is used to promote fitness programs in Japan?
• ... that Peter Talbot, the Catholic archbishop of Dublin, was imprisoned in 1678 due to an anti-Catholic conspiracy?
• ... that the owners of the Narragansett Pier Railroad included a family of industrialists, a dentist, a systems analyst, a lumberyard, and the founder of Textron?
• ... that valence populism cannot be positioned on the left–right political spectrum?
• ... that 17-year-old women's basketball player Zhang Ziyu is at least 220 centimetres (7 ft 3 in) tall?

Nguyễn Phú Trọng

• General secretary and former president of Vietnam Nguyễn Phú Trọng (pictured) dies at the age of 80.
• A faulty software update by CrowdStrike, an American cybersecurity company, causes global computer outages.
• In the Rwandan general election, Paul Kagame is re-elected as the president, and the Rwandan Patriotic Front coalition win a majority in the lower house.
• KP Sharma Oli is appointed the prime minister of Nepal after the incumbent Pushpa Kamal Dahal loses a no confidence motion.

July 20

Buzz Aldrin's bootprint on the Moon

• 1651 – Wars of the Three Kingdoms: After crossing the Firth of Forth, English Commonwealth forces defeated a Scottish army at the Battle of Inverkeithing, opening the rest of the country to occupation.
• 1867 – The United States Congress established the Indian Peace Commission to seek peace treaties with a number of Native American tribes.
• 1917 – Serbian prime minister Nikola Pašić and Yugoslav Committee president Ante Trumbić signed the Corfu Declaration, agreeing to seek the establishment of the Kingdom of Serbs, Croats, and Slovenes.
• 1969 – The Apollo 11 Lunar Module Eagle landed on the Sea of Tranquillity, where Neil Armstrong and Buzz Aldrin became the first men to walk on the Moon six and a half hours later (bootprint pictured).

Wikipedia:Today's featured article

4 July 2024
News and notes: WMF board elections and fundraising updates Special report: Wikimedia Movement Charter ratification vote underway, new Council may surpass power of Board In focus: How the Russian Wikipedia keeps it clean despite having just a couple dozen administrators Discussion report: Wikipedians are hung up on the meaning of Madonna In the media: War and information in war and politics Sister projects: On editing Wikisource Obituary: Hanif Al Husaini, Salazarov, Hyacinth, and PirjanovNurlan Opinion: Etika: a Pop Culture Champion Gallery: Spokane Willy's photos Op-Ed: Why you should not vote in the 2024 WMF BoT elections Crossword: On a day of independence, beat crosswords into crossploughshares Humour: A joke Cobwebs: Counting to a billion — manuscripts don't burn Recent research: Is Wikipedia Politically Biased? Perhaps Traffic report: Talking about you and me, and the games people play
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I started editing wikipedia at 10:49 23 October 2005.

I like Distributed Computing (currently via the BOINC platform).

I am also a fan of the works of Arthur C. Clarke.

I am the founder of Team ACC - Arthur C Clarke Fans, an international BOINC community team.

I have written a BOINC mini-FAQ: 10 Frequently Asked Questions / Common Problems

My talk/discussion pages are here: User talk:Kinhull