electromagnetic spectrum

Today, the remote control devices to control household devices such as televisions, air conditioners, players, toys are becoming more popular ... But how do they work?

Fireworks have splendid colors including yellow, orange, green, blue, purple due to the glowing process of metal salts inside it.

The ALMA telescope reveals new details from the first observations of the Sun, including a giant black streak resembling a turtle swimming across the celestial surface.