the steam boat, steel plow, and a few things he himself invented
the steel drum was invented in trinidad.the steel drum was invented in trinidad.
John deere invented the steel plow in 1837
The first boat invented was in 4000BC.
Helmut Walther invented the u-boat
Technically, the first steel hulled ship was the French warship 'Redoubtable ' in 1876. However, iron hulled ships had been used 30 years before this.
Henry Bessemer invented a process to manufacture steel.
The steel boat has more bouyancy because it is mostley filled with air as with the steel ball it is dence and heavy so it sinks
Stainless steel was invented in Sheffield
The fishing boat was invented in 1912 by Otis Evinrude.
A solid block of steel would be more dense than a boat made of steel. This is because even though the density of the material, steel, is constant, the form makes a difference to the overall density. The block of steel essentially contains nothing but steel, whereas the steel boat is "hollow" and contains air, as well as other construction materials such as wood.
The first speed boat was invented in 1910 by David Harmon