Template:Motd/2020-04

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※ = non-existent

1

Template:Motd/2020-04-01 (en)

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English : Template:Motd/2020-04-01 (en)

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thumbtime: Template:Motd/2020-04-01 thumbtime

2

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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thumbtime: 6

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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thumbtime: Template:Motd/2020-04-03 thumbtime

4

Fryderyk Franciszek Chopin's Scherzo No. 3 in C-sharp minor, Op. 39.

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English : Fryderyk Franciszek Chopin's Scherzo No. 3 in C-sharp minor, Op. 39.

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thumbtime: Template:Motd/2020-04-04 thumbtime

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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thumbtime: Template:Motd/2020-04-05 thumbtime

6

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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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thumbtime: Template:Motd/2020-04-06 thumbtime

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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thumbtime: Template:Motd/2020-04-07 thumbtime

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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thumbtime: Template:Motd/2020-04-08 thumbtime

9

Torah scroll in Kazerne Dossin Museum, Mechelen, Belgium.

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English : Torah scroll in Kazerne Dossin Museum, Mechelen, Belgium.

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thumbtime: Template:Motd/2020-04-09 thumbtime

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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thumbtime: Template:Motd/2020-04-10 thumbtime

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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thumbtime: Template:Motd/2020-04-11 thumbtime

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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thumbtime: Template:Motd/2020-04-12 thumbtime

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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thumbtime: Template:Motd/2020-04-13 thumbtime

14

Template:Motd/2020-04-14 (en)

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English : Template:Motd/2020-04-14 (en)

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thumbtime: Template:Motd/2020-04-14 thumbtime

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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thumbtime: Template:Motd/2020-04-15 thumbtime

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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thumbtime: Template:Motd/2020-04-16 thumbtime

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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thumbtime: Template:Motd/2020-04-17 thumbtime

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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thumbtime: Template:Motd/2020-04-18 thumbtime

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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thumbtime: Template:Motd/2020-04-19 thumbtime

20

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English : Ellipse trammel designed by Frans van Schooten.

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thumbtime: Template:Motd/2020-04-20 thumbtime

21

Template:Motd/2020-04-21 (en)

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English : Template:Motd/2020-04-21 (en)

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thumbtime: Template:Motd/2020-04-21 thumbtime

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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thumbtime: Template:Motd/2020-04-22 thumbtime

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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thumbtime: Template:Motd/2020-04-23 thumbtime

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

Advanced options

thumbtime: Template:Motd/2020-04-24 thumbtime

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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thumbtime: 2

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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thumbtime: 2

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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thumbtime: Template:Motd/2020-04-27 thumbtime

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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