Ladd-Franklin's mathematical interests ultimately led her to make important contributions to the field of psychology. In 1886, she became interested in the geometrical relationship between binocular vision and points in space and published a paper on this topic in the first volume of the American Journal of Psychology the following year. During the 1891-92 academic year, Ladd-Franklin took advantage of her husband's sabbatical leave from Johns Hopkins and traveled to Europe to conduct research in color vision in the laboratories of George Müller (1850-1934) in Göttingen, and Herman von Helmholtz (1821-1894) in Berlin, where she also attended lectures by Arthur König. In contrast to the prevailing three-color and opponent-color explanations of color vision, Ladd-Franklin developed an evolutionary theory that posited three stages in the development of color vision. Presenting her work at the International Congress of Psychology in London in 1892, she argued that black-white vision was the most primitive stage, since it occurs under the greatest variety of conditions, including under very low illumination and at the extreme edges of the visual field. The color white, she theorized, later became differentiated into blue and yellow, with yellow ultimately differentiated into red-green vision. Ladd-Franklin's theory was well-received and remained influential for some years, and its emphasis on evolution is still valid today.
One of the main reasons why Andrew Johnson faced difficulty implementing his Reconstruction plans is because he face harsh opposition in Congress--both by Radical Republicans and Democrats alike.
Answer:
The correct answer is: Dwight D. Eisenhower won the presidential election.
Explanation:
When he became the U.S. President, Dwight D. Eisenhower went to Korea in order to find a solution to end the Korean War. We could even say that thanks to the Korean War, Eisenhower was elected the new U.S. president.
During his presidential campaign, President Truman, challenged Eisenhower to find an adequate solution for the Korean War. Eisenhower said that if he were the president, he would personally go to Korea to terminate the war. This statement raised his popularity and helped him to become the U.S. president.
Shortly after the elections, Eisenhower fulfilled his promise and went to Korea. When he returned to the U.S. he adopted a tough policy toward communism in Korea and threatened to Chinese communists that he would use even a nuclear weapon if the peace negotiation began to move forward. After that, the Chinese agreed to the U.S. terms in 1953.
The Great Leap Forward was a colossal failure on the part of the Chinese Communist Regime.
Explanation:
Mao Zedong's scheme of the Great Leap forward relied on the labor on common land and ablution of private property in China.
The workers were to make the country into an industrial powerhouse to bring general prosperity in the nation.
However, the policies of indiscriminate industrial work without any centralized industry in place meant that the produce was of third rate, the people were often overworked and the famine that came due to less focus on agrarian setup was devastating.
More than 10 million people lost their life in the famine that was a result of the Great Leap Forward.
