The basic tool that Galileo used was crude refracting telescope.His initial version only magnified 8X but soon refined to the 20x magnification he used for his observations for sidereus nuncius. it had a convex objective lens and a concave eyepiece in a long tube.
Answer:
Slavery was effectively abolished by the triumph of the North against the South in the Civil War (1861-1865). The 14th Amendment granted citizenship to all African Americans in 1868. Black slaves in the southern states ceased to be forced labor, but they turned into cheap labor for plantations; either they were usually paid very little or were victims of legals norms that sought to perpetrate their de facto state of slavery and their misery. In the North, the African American population provided labor for industries. Economic growth, a better political environment and new opportunities opened by industrial developement estimulated large black migration from Southern rural villages and towns to cities in the North in the second half of the 19th century. African American migraton contributed thus to fast urbanization and the growth of cities.
Explanation:
The Texas Senate has 31 members, while the Texas House of Representatives has 150 members.
The presidential elections of 1932. hope this helps. :)
