nitroglycerin was used to make parallel lines to build the railroad
The invention of a stable form of nitroglycerin, dynamite, in 1869 made the construction of tunnels for such historic rail lines as the Union-Pacific transcontinental route more practicable.
It took 6 years to build the transcontinental railroad.
Mostly the Americans and the Chinese helped build the first Continental Railroad in 1869.
nitroglycerin
The Chinese started building the Transcontinental railroad in 1863 and the Transcontinental railroad was finished in 1869.
The Chinese people helped build the Central Pacific railroad. The Central Pacific railroad was built during 1863 to 1885.
Nitroglycerin is primarily used to treat chest pain (angina) by dilating blood vessels to reduce the workload of the heart. It can also be used in emergency situations to relieve chest pain during a heart attack. Additionally, nitroglycerin can be administered as a spray, tablet, or patch for quick and effective results.
the central and pacific railroad compnaies.
why did they build the transcontinental railroad
No. They wanted to build the railroad and it was a job. The railroad connected the east to the west.
Build a railroad
stanford