stream power
The steam engine
The steam engine
printing press
the number zero
I would say it would be the currency that united china during the Qin dynasty! Hope I helped!
yes
Steamboats
its important to scientist as the innovation is a newly discoverd reaction
sSpec number
Steamboat's!!
The Romans developed the arch, invented cement, made paved roads, made the first shopping mall, made the first sports arena, developed the dome, created the first apartment complex, made the first city water systems and cisterns, developed a form of an elevator,used space and light unlike others before them.