At home was several hours' hack-work waiting for him before he went to bed, and after he went to bed there was a volume of Weismann waiting for him, to say nothing of Herbert Spencer's Autobiography, which was as replete for him with romance as any thrilling novel.
The ocean's deepest area is the Mariana Trench (also called the Marianas Trench), which is about 11 km (almost 7 miles, or almost 36,000 feet) deep. The trench is 1,554 miles long and 44 miles wide, and is like the Grand Canyon of the ocean, although it is 120 times larger.
Near the southern tip of the crescent, there is a small slot-shaped area called the âChallenger Deep.. With a measured depth of approximately 36,000 feet below sea level, a journey to the bottom of the Challenger Deep is nearly seven miles, making it the deepest known place on Earth. To give you an idea of just how deep the Mariana Trench is, if Mt. Everest were placed in the deepest part, there would still be over a mile of water above its peak!