51�Թ�

Aboard the Seablazer earlier this month in Seattle’s Salmon Bay, mounted on rolling carts next to Hummel were the two submergible drones — nicknamed Falkor and Draco — used to case underwater sites.

Hamas also tried to take to the sea on Monday, according to the Israeli military, with a naval unit suspected of preparing a “submergible naval weapon” for action.

Rain and river water don’t stand a chance this spring, thanks to Filson’s Dry Backpack, a completely submergible pack made from heavy-duty nylon fabric coated in clear polyurethane.

Electric kettles had been experimented with since the 1890s, but the first kettle with a submergible immersion heater inside it was manufactured by the Swan Company in 1922.