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Kryger [21]
3 years ago
11

Samuel Morse helped spark a revolution in communications which statements describe one of Morses contributions

History
2 answers:
Stolb23 [73]3 years ago
6 0
The first one, he invented Morse code
trapecia [35]3 years ago
6 0

Samuel Morse (1791 - 1872) is an American inventor and painter. He was known for the invention of the electric telegraph, and improved telegraphic traffic by adding a relay at certain length intervals and thus enabled the transmission of signals over long distances. He also invented the dots and dashes code for the current transmission of the message, by which the message would be sent encrypted. In this way, the sending of the message has become instantaneous and possible over long distances.

Answers are: A. B. D.

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after the civil war, what were some challenges african americans faced in their pursuit of freedom and life as free men and woma
Sergeeva-Olga [200]

Answer:

Reconstruction was the turbulent era following the Civil War. The effort to reintegrate Southern states from the Confederacy and 4 million newly-freed slaves into the United States proved to be difficult. Under the administration of President Andrew Johnson, new southern state legislatures passed restrictive “black codes” to control the labor and behavior of former slaves and other African Americans. Outrage in the North over these codes eroded support for the approach known as Presidential Reconstruction and led to the triumph of the more radical wing of the Republican Party. During Radical Reconstruction, which began with the passage of the Reconstruction Act of 1867, newly enfranchised blacks gained a voice in government for the first time in American history, winning election to southern state legislatures and even to the U.S. Congress. In less than a decade, however, reactionary forces–including the Ku Klux Klan–would reverse the changes wrought by Radical Reconstruction in a violent backlash that restored white supremacy in the South.

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8 0
3 years ago
How did the Kansas-Nebraska Act deepen the divided between North and South?
sergiy2304 [10]

Answer:

The Kansas-Nebraska Law was passed in 1854. This law had the objective of creating two new states, Kansas and Nebraska, which would define their acceptance or not of slavery through popular sovereignty, in which the people would vote by accepting it or not. This situation clearly violated what was established in the Missouri Compromise, since both territories were north of the 36º 30 'parallel, established by said commitment as the limit between the slave states and the free states.

This situation, which protected the possibility of popularly deciding on slavery, intensified the conflict between slavers and abolitionists, since both groups were allowed to take a direct part in the establishment or not of slavery in those territories. Thus, when thousands of representatives of both groups moved to Kansas to participate in the voting, a situation of confrontation and violence between the two was generated, which became known as Bleeding Kansas.

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Leokris [45]

D it was challenging

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Bc im awesome <em>Lol</em>

4 0
2 years ago
What action regarding Texas did President Tyler take on his last day on office
Brut [27]

Answer:

On the last days of his presidency, Congress passed the joint resolution to annex Texas, the Republic of Texas voted to accept the annexation on June 23rd. On March 1st, the last day of his presidency, President Tyler signed the Joint Resolution for Texas Annexation.

Explanation:

3 0
3 years ago
Read 2 more answers
Details.<br> 1.<br> Discuss the criticisms of the name Tuskegee Syphilis Study.
KATRIN_1 [288]
The Tuskegee Study of Untreated Syphilis in the African American Male is the longest nontherapeutic experiment on human beings in medical history, as noted by Arthur L. Caplan (1992). Begun in 1932 by the United States Public Health Service (USPHS), the study was purportedly designed to determine the natural course of untreated latent syphilis in some 400 African American men in Tuskegee, Macon County, Alabama. The research subjects, all of whom had syphilis when they were enrolled in the study-contrary to the “urban myth” that holds “black men in Alabama were injected with the virus that causes syphilis” (Walker, 1992)-were matched against 200 uninfected subjects who served as a control group.

The subjects were recruited with misleading promises of “special free treatment,” which were actually spinal taps done without anesthesia to study the neurological effects of syphilis, and they were enrolled without their informed consent.

The subjects received heavy metals therapy, standard treatment in 1932, but were denied antibiotic therapy when it became clear in the 1940s that penicillin was a safe and effective treatment for the disease. When penicillin became widely available by the early 1950s as the preferred treatment for syphilis, this therapy was again withheld. On several occasions, the USPHS actually sought to prevent treatment.

The first published report of the study appeared in 1936, with subsequent papers issued every four to six years until the early 1970s. In l969, a committee at the federally operated Center for Disease Control decided the study should continue. Only in 1972, when accounts of the study first appeared in the national press, did the Department of Health, Education and Welfare (HEW) halt the experiment.

At that time, 74 of the test subjects were still alive; at least 28, but perhaps more than 100, had died directly from advanced syphilis. An investigatory panel appointed by HEW in August 1972 found the study “ethically unjustified” and argued that penicillin should have been provided to the men. As a result, the National Research Act, passed in 1974, mandated that all federally funded proposed research with human subjects be approved by an institutional review board (IRB). By 1992, final payments of approximately $40,000 were made to survivors under an agreement settling the class action lawsuit brought on behalf of the Tuskegee Study subjects. President Clinton publicly apologized on behalf of the federal government to the handful of study survivors in April 1997.

Several major ethical issues involving human research subjects need to be studied further. The first major ethical issue to be considered is informed consent, which refers to telling potential research participants about all aspects of the research that might reasonably influence their decision to participate. A major unresolved concern is exactly how far researchers’ obligations extend to research subjects. Another concern has to do with the possibility that a person might feel pressured to agree or might not understand precisely what he or she is agreeing to. The investigators took advantage of a deprived socioeconomic situation in which the participants had experienced low levels of care. The contacts were with doctors and nurses who were seen as authority figures.
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