What were the 4 papers Einstein wrote in 1905?

What were the 4 papers Einstein wrote in 1905?

110 years ago, between March and September 1905, the mailbox of the German scientific journal Annales der Physik received four papers that would forever change the laws of physics and, ultimately, our conception of reality: of light, of matter, of time, and of space.

How many papers did Einstein write 1905?

four

What did Einstein prove in his 1905 paper?

In 1905, Albert Einstein determined that the laws of physics are the same for all non-accelerating observers, and that the speed of light in a vacuum was independent of the motion of all observers. This was the theory of special relativity.

What is the average IQ in USA?

Psychologists revise the test every few years in order to maintain 100 as the average. Most people (about 68 percent) have an IQ between 85 and 115. Only a small fraction of people have a very low IQ (below 70) or a very high IQ (above 130). The average IQ in the United States is 98.

What is the most common cause of intellectual disability?

Some of the most common known causes of intellectual disability include fetal alcohol syndrome; genetic and chromosomal conditions, such as Down syndrome and fragile X syndrome; and certain infections during pregnancy. Children who have a sibling with autism are at a higher risk of also having autism spectrum disorder.

What are the three causes of intellectual disability?

The three major known causes of intellectual disability are Down syndrome, Fetal Alcohol Spectrum Disorder (FASD) and Fragile X syndrome.

What is the difference between a learning disability and an intellectual disability?

An intellectual disability describes below-average IQ and a lack of skills needed for daily living. This condition used to be called “mental retardation.” A learning disability refers to weaknesses in certain academic skills. Her learning challenges can’t be caused by low intelligence.

Does everyone with an intellectual disability have a learning disability?

Many people assume that intellectual or developmental disabilities (IDDs) are the same as learning disabilities (LDs)—but that’s not the case. While both IDDs and LDs can impact a child or adult’s ability to learn and develop new skills, there are differences between the two.

Does cerebral palsy affect intelligence?

Cerebral Palsy does not on its own affect a person’s intelligence. However, as many as 30-50% of children with CP have some form of cognitive impairment caused by a coexisting condition.