The experiments are:
- The gravitational lensing that experiments use to light around the dark matter such as black hole which makes the light bent.
- The gravity probe B that <span>makes the axes of gyroscopes inside to drift slightly over a period o time, a result that some how relevant to einstein theory
- </span>the Laser Interferometer Gravitational Wave Observatory (LIGO<span>) that found piece of evidences for black hole colission</span>
The correct answer is Innovators developed a process to produce steel inexpensively.
The Second Industrial Revolution was born with scientific and technological progress that occurred in England, France and the United States, around the second half of the 19th century.
The discovery and use of new energy sources - oil (in the combustion engine), water (in hydroelectric plants), uranium (for nuclear energy), have further revolutionized industrial production. The list of inventions and discoveries is huge, which represented greater comfort for the human being.
Answer:
1. represent objects with words and images.
Explanation:
Preoperational stage: In psychology, the term preoperational stage is one of the main parts or stages in the theory of cognitive development which was proposed by Jean Piaget and consists of a total four distinct stages.
The preoperational stage starts at the age of two years and lasts through seven years and is considered as the second in Piaget's theory. At this stage, a child starts or initiates talking, learns to manipulate different symbols, irreversibility, and engages in symbolic play.
That sounds like democrat if not it is not green or independent
