Template:Motd/2020-04

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※ = non-existent

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Grandpas's Eyeglasses (Os Óculos do Vovô), a 1913 silent short by Francisco Dias Ferreira dos Santos, is the oldest surviving Brazilian fiction film.

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English : Grandpas's Eyeglasses (Os Óculos do Vovô), a 1913 silent short by Francisco Dias Ferreira dos Santos, is the oldest surviving Brazilian fiction film.
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3

NASA’s telescope Neutron Star Interior Composition Explorer (NICER), installed on the International Space Station, maps X-ray echoes to reveal changes to the corona of black hole MAXI J1820+070.

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English : NASA’s telescope Neutron Star Interior Composition Explorer (NICER), installed on the International Space Station, maps X-ray echoes to reveal changes to the corona of black hole MAXI J1820+070.
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4

5

A Christmas market (type of street market) during the four weeks of Advent. Originated in Germany, but are now common worldwide.

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English : A Christmas market (type of street market) during the four weeks of Advent. Originated in Germany, but are now common worldwide.
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6

A rendered visualization of the Ventricular system, specifically the Cerebral aqueduct shown in red, using data from Anatomography.

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English : A rendered visualization of the Ventricular system, specifically the Cerebral aqueduct shown in red, using data from Anatomography.
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7

Example of a 2D Fourier Transform applied to an image.

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English : Example of a 2D Fourier Transform applied to an image.
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8

Historical reenactment: "Borders to guard" 1915 - 1919, on August 3rd and 4th, 2019, at the Belfort citadel.

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English : Historical reenactment: "Borders to guard" 1915 - 1919, on August 3rd and 4th, 2019, at the Belfort citadel.
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9

10

1904 recording of Mr. Lefires, a French flatulist.

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English : 1904 recording of Mr. Lefires, a French flatulist.
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11

This animation compares the X-ray 'heartbeats' of GRS 1915 and IGR J17091, two black holes that ingest gas from companion stars. The data was recorded by Rossi X-ray Timing Explorer (RXTE).

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English : This animation compares the X-ray 'heartbeats' of GRS 1915 and IGR J17091, two black holes that ingest gas from companion stars. The data was recorded by Rossi X-ray Timing Explorer (RXTE).
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12

A chatty Brewer's blackbird in San Francisco, California

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English : A chatty Brewer's blackbird in San Francisco, California
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13

Ludwig van Beethoven's first movement of the Piano Sonata No. 7, Op. 10, No. 3 was written in 1798.

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English : Ludwig van Beethoven's first movement of the Piano Sonata No. 7, Op. 10, No. 3 was written in 1798.
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14

15

Seven years ago the Boston Marathon was hit by a terror attack. The same day (April 15, 2013) U.S. President Barack Obama delivers a statement on the event.

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English : Seven years ago the Boston Marathon was hit by a terror attack. The same day (April 15, 2013) U.S. President Barack Obama delivers a statement on the event.
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16

The ESO Very Large Telescope observes the southern skies using four mirrors 8.2 metres in diameter. But keeping the VLT´s eyes clear requires each mirror to be cleaned and recoated occasionally.

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English : The ESO Very Large Telescope observes the southern skies using four mirrors 8.2 metres in diameter. But keeping the VLT´s eyes clear requires each mirror to be cleaned and recoated occasionally.
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17

President Donald Trump Cuts US Funding to WHO. President claims WHO was slow to act and promoted China's 'disinformation'. The US is WHO's single biggest donor, providing $400 million in 2019, nearly 15% of its budget.

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English : President Donald Trump Cuts US Funding to WHO. President claims WHO was slow to act and promoted China's 'disinformation'. The US is WHO's single biggest donor, providing $400 million in 2019, nearly 15% of its budget.
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18

This 1860 phonautogram by Édouard-Léon Scott de Martinville is the oldest known intelligible recording of the human voice. It is excerpt from the song “Au clair de la lune”.

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English : This 1860 phonautogram by Édouard-Léon Scott de Martinville is the oldest known intelligible recording of the human voice. It is excerpt from the song “Au clair de la lune”.
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19

A time lapse of the Falkirk Wheel over a time period of approximately 10 minutes.

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English : A time lapse of the Falkirk Wheel over a time period of approximately 10 minutes.
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20

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22

Follow a coronal mass ejection as is passes Venus then Earth, and explore how the sun drives Earth's winds and oceans.

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English : Follow a coronal mass ejection as is passes Venus then Earth, and explore how the sun drives Earth's winds and oceans.
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23

Juvenile spiny flower mantis (Pseudocreobotra wahlbergii) simply grooms itself as it watches the earthworm crawl between its legs.

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English : Juvenile spiny flower mantis (Pseudocreobotra wahlbergii) simply grooms itself as it watches the earthworm crawl between its legs.
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24

Simplified animation of a 5-speed Manual transmission.
  input shaft, connected to the Clutch and motor
  Layshaft
  output shaft
  constant-mesh wheels of the gears 1, 2, 3, 5. These gears rotate freely on the output shaft
  Dog clutches locking gears with the output
  the reverse uses a sliding-mesh Idler-wheel
  Gear stick
  shift linkage

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English : Simplified animation of a 5-speed Manual transmission.
  input shaft, connected to the Clutch and motor
  Layshaft
  output shaft
  constant-mesh wheels of the gears 1, 2, 3, 5. These gears rotate freely on the output shaft
  Dog clutches locking gears with the output
  the reverse uses a sliding-mesh Idler-wheel
  Gear stick
  shift linkage
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25

The Chechahcos, a 1924 American silent film on the Klondike Gold Rush, was the first full-length motion picture filmed entirely in Alaska.

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English : The Chechahcos, a 1924 American silent film on the Klondike Gold Rush, was the first full-length motion picture filmed entirely in Alaska.
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26

The Infernal Cauldron is a 1903 hand-colored trick film by Georges Méliès.

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English : The Infernal Cauldron is a 1903 hand-colored trick film by Georges Méliès.
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27

This video was taken October 18, 2011 from on board the International Space Station while it travels from just south of Alaska to eastern Cuba. The camera was north-facing, so the Aurora Borealis is visible. Lightning storms can be seen while Chicago and the south end of Lake Michigan pass by in the background.

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English : This video was taken October 18, 2011 from on board the International Space Station while it travels from just south of Alaska to eastern Cuba. The camera was north-facing, so the Aurora Borealis is visible. Lightning storms can be seen while Chicago and the south end of Lake Michigan pass by in the background.
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28

Les Canards tyroliens (the Yodling Ducks) is a 1869 French song on the freedom of assembly created by Thérésa and performed in 1930 by Yvonne Gabaroche.

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English : Les Canards tyroliens (the Yodling Ducks) is a 1869 French song on the freedom of assembly created by Thérésa and performed in 1930 by Yvonne Gabaroche.
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29

Girl Shy is a 1924 American film directed by Fred C. Newmeyer and Sam Taylor and starring Harold Lloyd.

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English : Girl Shy is a 1924 American film directed by Fred C. Newmeyer and Sam Taylor and starring Harold Lloyd.
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30

Traditional Yiddish song Ver Hot aza Yingele? performed by Eurocantica music group.

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English : Traditional Yiddish song Ver Hot aza Yingele? performed by Eurocantica music group.
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Request an additional language - Demande d’ajout d’une langue

2020-03 ← 2020-04 → 2020-05

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