Harpax - a boarding plank with a beak which buried into a sip's deck and held the ships together.
A device for lifting boats over sandbars.
The device for lowering life boats from the ship down to the water is called a "davit"
Boats have helped us to discover unknown places on this planet through sea voyages
United States.
Surface tension.
Metal and glass.
Most states do require a muffling device on boats. Most states do have exceptions like the age of the boat, but may have to be under a decibel level or if it is a racing competition, there are other requirements for those.
boats, houses, crops Hope it helped LOL
A Sound Signaling Device.
American luxury ships worked together with the Triple Entente navy. A few luxury or goods ships would be grouped together with a naval ship, and the naval would provide a sort of "protection". This way, German U-Boats would less likely to attack and sink the luxury liners or goods ships.
It helped because the compass for example helped by knowing where you were on boats and stuff.
he helped Jamestown with boats and things like that