printing press
stream power
The steam engine
The steam engine
the number zero
I would say it would be the currency that united china during the Qin dynasty! Hope I helped!
its important to scientist as the innovation is a newly discoverd reaction
yes
Steamboats
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.
Steamboat's!!
it is important because if there is no good service their is no client or no costumer and innovation is the key