Mother Nature. Humans just adopted her "inventions" in such a way that they could use it for themselves in a more human-friendly fashion.
Stairs, as a concept, have been used since ancient times and cannot be attributed to a single inventor. The earliest known stairs date back to around 6000 BC in ancient Mesopotamia. They evolved over time as civilizations advanced, with various cultures contributing to their design and construction.
an inventor is a designer but a designer is not an inventor
inventor of fiberglass
The possessive form of the noun inventor is inventor's.Example: The inventor's patent was finally granted.
According to it's construction, stairs are categorized as follows: 1. Brick Stairs:- - Brick stairs used for external steps & stairs. 2. Stone Stairs:- - These are very expensive; and are rarely used. 3. Concrete Stairs:- - These are widely used in all types of buildings. These are strong, fire resistant and make possible a wide range of forms. 4. Timber Stairs:- - These are economical & lightweight. Commonly used in domestic buildings.
he is an african-american inventor. he creadted the patented wheelchair that climbs up stairs
Stairs, as a concept, have been used since ancient times and cannot be attributed to a single inventor. The earliest known stairs date back to around 6000 BC in ancient Mesopotamia. They evolved over time as civilizations advanced, with various cultures contributing to their design and construction.
who is the inventor
form_title= Outside Stairs form_header= Install outside stairs to get to your home. Will you be installing the stairs yourself?*= () Yes () No What color do you want the stairs?*= _ [50] Do you want to stain the stairs?*= () Yes () No
NO. Use "flight of stairs"
A pair of stairs is another term for a flight of stairs.
George Washington Carver, an American agricultural scientist and inventor, died at the age of 78 in 1943. It is believed that he fell down a flight of stairs in his home and suffered a severe head injury, which ultimately led to his death.
up the stairs
stairs,stares
Inventor
stairs = la escalera
an inventor is a designer but a designer is not an inventor