Answer :
Answer:
Perhaps the decisive innovation was the invention in 1925 of the stern slipway for factory ships (Tonnessen and Johnsen 1982). This enabled whalers to haul animals on deck and process them without a land-based whaling station. Ships now flourished in the whale-rich pelagic areas of the Antarctic.
Explanation:
Answer:
Not The invention of radars
Explanation:
Learned the hard way