Why Are Rainbows Curved?

The video explains the physics behind the curved shape of rainbows, highlighting the role of light reflection and refraction in raindrops. It discusses how rainbows are perceived, their cultural significance, and the scientific and emotional aspects they evoke. The video also explores why ice cubes appear cloudy or clear, focusing on water impurities and freezing techniques. It provides methods to achieve clear ice cubes at home, emphasizing the importance of slow freezing and boiled water.

Describe the process that leads to the cloudiness of ice cubes made from tap water.

Discuss the significance of impurities in water when freezing.

What techniques can be used to create clear ice cubes at home?