Sun

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Articles about Sun

1,901 published items.

Why is there a tidal up and down phenomenon?
Environment

Why is there a tidal up and down phenomenon?

Seawater is retained on Earth by gravity, the Moon and the Sun also have gravity for the earth. In particular, the Moon absorbs a mass of water on the ocean surface.

December 16, 2018
Why is the sky blue?
Environment

Why is the sky blue?

Each color corresponds to 1 wavelength, frequency and carries different energy. Purple light has the shortest wavelength in the visible spectrum.

December 16, 2018
What is the sun halo?
Environment

What is the sun halo?

The big light around the Sun is not a circular rainbow. It is merely the result of a common optical phenomenon in nature: light refraction.

December 16, 2018
Hot sunshine Hanoi peaked at 41 degrees C today
Environment

Hot sunshine Hanoi peaked at 41 degrees C today

On June 3, Hanoi temperature increased to 41 degrees Celsius, the peak of the heat wave. However, the actual outdoor temperature is much higher, causing a burning sensat…

December 16, 2018
Distinguish hot sun concepts
Environment

Distinguish hot sun concepts

Hanoi is experiencing intense hot days, the highest temperature is 42 degrees Celsius. Many people just feel, or hear the reporters notice, not understand the related co…

December 16, 2018