Answer:
The scientist who used a prism to study light was Isaac Newton.
Explanation:
Newton was the first to understand what the rainbow was: he refracted the white light with a prism and decomposed it into basic colors: red, orange, yellow, green, blue and violet.
For his experiments, Newton used triangular glass prisms. The light penetrates one of the faces of the prism and is refracted to decompose in different colors, because the degree of separation varies depending on the wavelength of each color. The prisms act in this way thanks to the fact that the light changes speed when it passes from the air to the crystal of the prism.
Once the colors were separated, Newton used a second prism to refract them and to form white light again. The experiment showed that the prism did not add color to light, as many believed. Newton also passed only the red color obtained with a prism for a second prism, thus discovering that the color was not altered. It was further proof that the prism did not create colors, but only separated those that were present in the original beam of light.
In large part it can be said that our current conception of light and color born with Isaac Newton and his valuable contribution to the subject.
Answer:
Both governments wanted to secure their political influence in the region through support. This is why the Soviet Union and the United States both get involved in proxy wars in Africa during the Cold War
Explanation:
At the suggestion of the American General MacArthur, in October 1943 the heads of state of the United States and the USSR met in Moscow and agreed that the USSR would declare war on Japan once the war in Germany had ended. This decision was supported by the belief that the Japanese Empire was more vulnerable in the north, in Manchuria and Korea, than in the south, in the Philippines, where it was winning the battles.
On August 8, 1945, two days after the atomic bombing of Hiroshima by the US, the USSR declared war on Japan and the next day attacked the Korean peninsula in the north. This decision alarmed the United States, that after the atomic bombings on Japan, thus ensuring the early Japanese surrender, they were no longer so interested in the entry of the Soviet Union into the war. One day after the second atomic bombing of Japan in Nagasaki on August 10, 1945, the United States sends troops to Busan, south of the Korean peninsula. Korea, on the other hand, counted on a guerrilla of communist ideology that faced Japan and supported the measures of the USSR. The American troops were also well received at their landing in Busan, to the south.
On August 10, when preparing the general surrender of Japan, the Operations Division of the US Department of War chose the 38th parallel as the boundary of the country's defense. On August 15 the surrender was published. Joseph Stalin, in a climate of increasing tension between the United States and the Soviet Union, ordered his troops to stop north of the 38th parallel, while the US troops were located south of it. Stalin admitted the surrender of Japan and did not say anything about the division of Korea. The Americans took this act as an acceptance of it.
The North, which began to industrialize and sympathize with the Soviets, formed the socialist state of North Korea on September 9, 1948. The USSR recognized its cabinet as the only legal for the entire peninsula. Meanwhile, to the south, capitalist South Korea had been born on August 15 of the same year, then the poorest part of the peninsula. The UN organized its elections: in 1945, 93% of the steel industry and 86% of the chemical industry were in North Korea, while the South was practically only a provider of food.
The division culminated in the 1950 Korean War, which began with the invasion of the North over the South. This war accentuated the differences between USA and the USSR and indirectly led to the economic regeneration of Japan.
the revival of democratic revolutions, and nationalism
B.
the Congress of Vienna which encouraged Europe to look to the future
C.
the religious wars that divided Europe in the 1800s
D.
the history of unified cooperation among states and city-states
Answer:
A
Explanation:
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the support of the Byzantines. i just took the test