Template:Motd/2025-12
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1
What are HIV & AIDS? HIV, or human immunodeficiency virus, is a type of virus that infects human immune cells. Over time, immune cells are lost, which weakens the immune system and allows patients to be infected by other viruses. This video explains the pathophysiology behind viral infection, as well as important signs and symptoms of HIV and clinical markers of AIDS. It also gives an overview of diagnosis and treatment. Today is World AIDS Day.
English : What are HIV & AIDS? HIV, or human immunodeficiency virus, is a type of virus that infects human immune cells. Over time, immune cells are lost, which weakens the immune system and allows patients to be infected by other viruses. This video explains the pathophysiology behind viral infection, as well as important signs and symptoms of HIV and clinical markers of AIDS. It also gives an overview of diagnosis and treatment. Today is World AIDS Day.
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- thumbtime: 489
2
Jamie Foxx speaks to the urgency of the HIV epidemic among young African Americans and encourages people to talk about HIV.
English : Jamie Foxx speaks to the urgency of the HIV epidemic among young African Americans and encourages people to talk about HIV.
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- thumbtime: Template:Motd/2025-12-02 thumbtime
3
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- thumbtime: 5
4
A talk by Creative Commons (CC) at Wikimania 2023 about how artificial intelligence intersects with CC's over 20-years long history of supporting open knowledge and open culture globally with their licenses and legal tools.
English : A talk by Creative Commons (CC) at Wikimania 2023 about how artificial intelligence intersects with CC's over 20-years long history of supporting open knowledge and open culture globally with their licenses and legal tools.
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- thumbtime: Template:Motd/2025-12-04 thumbtime
5
This cycling video shows some problems of road transport in Ljubljana, Slovenia
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- thumbtime: 64
6
A video about the biological microbots, the Xenobots.
These computer-designed organisms are made from frog cells and reproduce.
These computer-designed organisms are made from frog cells and reproduce.
English : A video about the biological microbots, the Xenobots.
These computer-designed organisms are made from frog cells and reproduce.
These computer-designed organisms are made from frog cells and reproduce.
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- thumbtime: 14
7
An FPV video of transfer between the Michurinsky Prospekt (Bolshaya Koltsevaya line) and the Michurinsky Prospekt (Kalininsko-Solntsevskaya line) stations of the Moscow Metro. The transfer opened on 7 December, 2021.
English : An FPV video of transfer between the Michurinsky Prospekt (Bolshaya Koltsevaya line) and the Michurinsky Prospekt (Kalininsko-Solntsevskaya line) stations of the Moscow Metro. The transfer opened on 7 December, 2021.
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- thumbtime: Template:Motd/2025-12-07 thumbtime
8
Analytical solution of the linearized shallow-water equations in a two-dimensional rectangular basin
English : Analytical solution of the linearized shallow-water equations in a two-dimensional rectangular basin
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- thumbtime: Template:Motd/2025-12-08 thumbtime
9
Demo of the octaver effect on bass guitar (Markbass Octaver Pedal).
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- thumbtime: Template:Motd/2025-12-09 thumbtime
10
Trams and trolleys of Lisbon in February 2017
English : Trams and trolleys of Lisbon in February 2017
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- thumbtime: 122
11
A Wikipedia-based brief monthly review of December 2020 in science.
English : A Wikipedia-based brief monthly review of December 2020 in science.
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- thumbtime: Template:Motd/2025-12-11 thumbtime
12
A LiDAR video of the Thetford Castle, a medieval motte and bailey castle in the market town of Thetford in the Breckland area of Norfolk, England. The first castle in Thetford, a probable 11th-century Norman ringwork called Red Castle, was replaced in the 12th century by a much larger motte and bailey castle on the other side of the town. Thetford Castle incorporated parts of an Iron Age hillfort.
English : A LiDAR video of the Thetford Castle, a medieval motte and bailey castle in the market town of Thetford in the Breckland area of Norfolk, England. The first castle in Thetford, a probable 11th-century Norman ringwork called Red Castle, was replaced in the 12th century by a much larger motte and bailey castle on the other side of the town. Thetford Castle incorporated parts of an Iron Age hillfort.
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- thumbtime: Template:Motd/2025-12-12 thumbtime
13
A time-lapse video onboard the MTA New York City Subway sped up 16 times.
The background music until 3:57 is currently representing the genre witch house and the second track the genre psybient in the Commons music genre gallery.
The background music until 3:57 is currently representing the genre witch house and the second track the genre psybient in the Commons music genre gallery.
English : A time-lapse video onboard the MTA New York City Subway sped up 16 times.
The background music until 3:57 is currently representing the genre witch house and the second track the genre psybient in the Commons music genre gallery.
The background music until 3:57 is currently representing the genre witch house and the second track the genre psybient in the Commons music genre gallery.
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- thumbtime: 337
14
A video of the collapse of the 305-meter Arecibo Telescope on 3 December 2020.
The telescope was used for the earliest intentional interstellar radio message by humanity and Earth in 1974 to a star system about 25,000 light years from Earth, the Arecibo message. It was completed in 1963 and remained the world's largest single-aperture telescope until 2016. Its decommissioning was announced one month before its unintentional collapse.
The telescope was used for the earliest intentional interstellar radio message by humanity and Earth in 1974 to a star system about 25,000 light years from Earth, the Arecibo message. It was completed in 1963 and remained the world's largest single-aperture telescope until 2016. Its decommissioning was announced one month before its unintentional collapse.
English : A video of the collapse of the 305-meter Arecibo Telescope on 3 December 2020.
The telescope was used for the earliest intentional interstellar radio message by humanity and Earth in 1974 to a star system about 25,000 light years from Earth, the Arecibo message. It was completed in 1963 and remained the world's largest single-aperture telescope until 2016. Its decommissioning was announced one month before its unintentional collapse.
The telescope was used for the earliest intentional interstellar radio message by humanity and Earth in 1974 to a star system about 25,000 light years from Earth, the Arecibo message. It was completed in 1963 and remained the world's largest single-aperture telescope until 2016. Its decommissioning was announced one month before its unintentional collapse.
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- thumbtime: 13
15
Pigeons bathing at a fountain in the Parque del Buen Retiro, Madrid.
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- thumbtime: Template:Motd/2025-12-15 thumbtime
16
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- thumbtime: Template:Motd/2025-12-16 thumbtime
17
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- thumbtime: Template:Motd/2025-12-17 thumbtime
18
A video of the trajectory of the third interstellar object passing through the Solar system, 3I/ATLAS.
It will be closest to Earth on 19 December, passing at a distance of 269 million km. As the video shows, its trajectory is closely aligned with the orbital planes of the Solar System's planets.
It will be closest to Earth on 19 December, passing at a distance of 269 million km. As the video shows, its trajectory is closely aligned with the orbital planes of the Solar System's planets.
English : A video of the trajectory of the third interstellar object passing through the Solar system, 3I/ATLAS.
It will be closest to Earth on 19 December, passing at a distance of 269 million km. As the video shows, its trajectory is closely aligned with the orbital planes of the Solar System's planets.
It will be closest to Earth on 19 December, passing at a distance of 269 million km. As the video shows, its trajectory is closely aligned with the orbital planes of the Solar System's planets.
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- thumbtime: Template:Motd/2025-12-18 thumbtime
19
Video of an elephant producing art.
It was recorded in Chiang Mai, Thailand. Elephants are known for being one of the most intelligent species on Earth, exhibiting extensive communication, emotional depth, complex practices such as cultural transmission, and tool-use, among other characteristics.
It was recorded in Chiang Mai, Thailand. Elephants are known for being one of the most intelligent species on Earth, exhibiting extensive communication, emotional depth, complex practices such as cultural transmission, and tool-use, among other characteristics.
English : Video of an elephant producing art.
It was recorded in Chiang Mai, Thailand. Elephants are known for being one of the most intelligent species on Earth, exhibiting extensive communication, emotional depth, complex practices such as cultural transmission, and tool-use, among other characteristics.
It was recorded in Chiang Mai, Thailand. Elephants are known for being one of the most intelligent species on Earth, exhibiting extensive communication, emotional depth, complex practices such as cultural transmission, and tool-use, among other characteristics.
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- thumbtime: Template:Motd/2025-12-19 thumbtime
20
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- thumbtime: Template:Motd/2025-12-20 thumbtime
21
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- thumbtime: Template:Motd/2025-12-21 thumbtime
22
"Silent Night" from "The Christmas Star" player piano scroll played on a restored 1920 Weber Duo-Art piano.
English : "Silent Night" from "The Christmas Star" player piano scroll played on a restored 1920 Weber Duo-Art piano.
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- thumbtime: Template:Motd/2025-12-22 thumbtime
23
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- thumbtime: Template:Motd/2025-12-23 thumbtime
24
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- thumbtime: Template:Motd/2025-12-24 thumbtime
25
26
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- thumbtime: Template:Motd/2025-12-26 thumbtime
27
A video of inside a pig farm in Australia in August 2025 by the Farm Transparency Project.
After videos like this have been published, this pig farm, the Andgar Piggery in Dublin, South Australia, is being investigated, as of July 2025, by the charity Royal Society for the Prevention of Cruelty to Animals of Australia for alleged animal abuse.
After videos like this have been published, this pig farm, the Andgar Piggery in Dublin, South Australia, is being investigated, as of July 2025, by the charity Royal Society for the Prevention of Cruelty to Animals of Australia for alleged animal abuse.
English : A video of inside a pig farm in Australia in August 2025 by the Farm Transparency Project.
After videos like this have been published, this pig farm, the Andgar Piggery in Dublin, South Australia, is being investigated, as of July 2025, by the charity Royal Society for the Prevention of Cruelty to Animals of Australia for alleged animal abuse.
After videos like this have been published, this pig farm, the Andgar Piggery in Dublin, South Australia, is being investigated, as of July 2025, by the charity Royal Society for the Prevention of Cruelty to Animals of Australia for alleged animal abuse.
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- thumbtime: Template:Motd/2025-12-27 thumbtime
28
Trams and trolleys of Lisbon in August 2016
English : Trams and trolleys of Lisbon in August 2016
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- thumbtime: 674
29
30
A video of skiing and a ski lift in Krvavec in the Mountains of the Kamnik–Savinja Alps near Kranj, Slovenia.
English : A video of skiing and a ski lift in Krvavec in the Mountains of the Kamnik–Savinja Alps near Kranj, Slovenia.
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- thumbtime: 8
31
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