How do l write a program which countdown from 10 to 3​

Search the web for two examples of digital art that you like. the examples must be from different mediums (example: one digital photo and one computer animation not two computer animations). compose an essay for each example you choose about why the piece appeals to you, and identify the medium used.

Idon understand these and need some ! ?

The place where the extended axis of the earth would touch the celestial sphere is called the celestial