⟩ Who invented the four-stroke engine?
Nikolavs August Otto, German
Nikolavs August Otto, German
What is the strongest pistol in the world?
How many BTU per Hour equals 1 Ton of Air Conditioning?
How is a submarine able to submerge and surface?
What is railroad track ballast?
What are the advantages of powder metallurgy?
Who built the Trans Alaska pipelene?
Is pipe round because it provides the least area to volume ratio?
What does Green field project mean?
What are some examples of a periscope?
What is a turboprop engine?