Which describes German engineer Charles William Siemens's best-known innovation?

A.
the first practical internal combustion engine

B.
a process for making steel in a gas furnace

C.
an instrument to detect icebergs using echoes

D.
a device to send wireless signals through the air

Question

Which describes German engineer Charles William Siemens's best-known innovation?	
 
 A.
the first practical internal combustion engine
 
 B.
a process for making steel in a gas furnace
 
 C.
an instrument to detect icebergs using echoes
 
 D.
a device to send wireless signals through the air

paki · Answer

ur guess

anonymous · Answer

i dont know because i cant find anything on this guy

paki · Answer

hmmm.. .choose between B and C...

anonymous · Answer

D.?

paki · Answer

no

anonymous · Answer

ok, lol, im not a good history person :P

paki · Answer

hmmm... have a look here... http://www.britannica.com/EBchecked/topic/543273/Sir-William-Siemens