Homestyle Garlic Ranch Dressing. Make your own garlic ranch dressing using mayonnaise, buttermilk, hard-boiled eggs, and plenty of garlic powder. This dressing packs a punch of flavor and explodes with freshness, a bit of tang, and traditional ranch flavor. This is for those who prefer herbs rather than spice.
A small submarine, the bathyscape Trieste, made it to 10,916 meters (35,813 feet) below sea level in the deepest point in the ocean, the Challenger Deep in the Marianas Trench, a few hundred miles east of the Philippines.
The depth a sub can go is classified but it seems to be greater than 2,000 feet. All US subs are nuclear powered. This type of propulsion doesn't require air. Electrolysis creates air from sea water. The limiting factor for how long a sub can stay under water and away from port is the amount of food they can carry.