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Keywords this week: Moon and Volcano

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For more updated keywords: KZ Tangdingan, the star of the Philippines and School shooting in the US.

Keyword: Moon

Related Event: The combination of Full Moon, Blue moon and total lunar eclipse, Super Blue Blood Moon Eclipse happened again after 152 years. The last time it happened was in 1866.

Keywords this week: Moon Acadsoc


Let’s pick up the concepts again here:

Keyword for this week Acadsoc MoonFull Moon: As what it means literally, the moon can be fully seen on Earth by reflecting the sunlight. The moon is completely sunlit and appears as a circular disk.

Will the Earth stop the sunlight forwarded to the Moon?
 Yes, and it will cause a lunar eclipse and lunar eclipse may only happen when there is a full moon.

Red Moon: When the Moon moves into Earth’s shadow, a lunar eclipse occurs, during which all or part of the Moon’s face may appear reddish due to the Rayleigh scattering of blue wavelengths and the refraction of sunlight through Earth’s atmosphere. The moon looks red then, so we call it the red moon.

lunar eclipseTotal lunar eclipse: A total lunar eclipse happens when the whole moon enters Earth’s shadow. In most cases, the moon will only be partially covered by the earth, which will cause a partial lunar eclipse. It is rare to see a total lunar eclipse.

 

 

 

Is the size of the moon we see fixed?

Moon revolutionNo, as the moon revolves around the earth and the orbit (the route of revolution) is not a circle but an ellipse. When the moon is at the farthest point against the earth, the apogee, the moon we see from the earth is the smallest one.
Super Moon: When the moon is at the closest point against the earth, the perigee, the moon we see from the earth is the largest one, or so-called super moon.

 

Does Blue Moon mean the moon is blue?

Blue Moon: When a second full moon in a calendar month, it is called a blue moon by astronomers. It is not because the moon turns or looks blue, lol. A blue moon happens on average about once every 2.7 years.

Keyword: Volcano

Mayon Volcano or Mount Mayon is still erupting.

On January 13, 2018, at 4:21 PM (PST), a phreatic eruption occurred that propelled a grayish steam and ash plume approximately 2500 m high that drifted to the southwest side of the volcano.

Mount Mayon location

Latest news: https://www.express.co.uk/news/world/912350/Mayon-volcano-eruption-2018-update-Philippines-erupt-lava-ash-cloud-natural-disaster-video

If you live close to this area, please stay at a safe distance to the volcano (at least 10km) and keep an eye on the government warning and statement of evacuation.
For your safety, please pay attention to the official prediction of the volcano eruption and possible earthquake!

Do you know?

The eruption of Mayon Volcano in 1814 killed approximately 1,200 local people and nearly destroyed the town of Cagsawa. The last activity of Mayon Volcano was reported in 2014.

What is a volcano?

volcanoA volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Just imagine when you open a can of cola or a bottle of champagne.

 

 

Do all volcanos erupt?

No, there are active volcanos and extinct volcanos.

Extinct VolcanoExtinct volcano: Extinct volcanoes are those that scientists consider unlikely to erupt again because the volcano no longer has a magma supply. Examples of extinct volcanoes are many volcanoes on the Hawaiian – Emperor Seamount chain in the Pacific Ocean (although some volcanoes on the island of Hawaii are active), Hohentwiel in Germany, Shiprock in New Mexico, and Zuidwal volcano in the Netherlands. Edinburgh Castle in Scotland is famously located atop an extinct volcano.

How long will a volcano eruption last?

The lifespan of a volcano: The lifespan of a volcano can vary from months to several million years, making such a distinction sometimes meaningless when compared to the lifespans of humans or even civilizations. For example, many of Earth’s volcanoes have erupted dozens of times in the past few thousand years but are not currently showing signs of eruption. Given the long lifespan of such volcanoes, they are very active. By human lifespans, however, they are not.

Actually, there is a perfect combination of these two keywords! It looks strangely beautiful when the Super Blue Blood Moon behind the volcanic ash cloud.

Keywords this week at Acadsoc: Moon and Volcano

 

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  1. LittleYellowWinterLamp    

    Very educational!

 

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