Marry daivd

Crust and how it continues to mold the planet takes us back to 1872 when a British research vessel HMSchallenger set out on the first ever mission to map the ocean floor from us to record history men just assume that beyond a certain level the sea was pretty flat pretty dead fairly lifeless they weren't expecting to find anything very interesting for four years the challenger crisscross the oceans covering 70,000 miles a third of the distance to the moon the crew plumb the Nutra Tosterone depths every 140 miles using a total of 249miles a rope and hundreds of pounds let wait it was tedious backbreaking work but at the time it was the only way to measure the depth the ocean floor when they got to the western Pacific two hundred miles off the island of Guam the crew routinely lowered the rope for measurement but the wait kept on dropping and dropping it's a big surprise nobody thought the ocean was this day so all the sudden we've got scientists saying why is that on old eventually the weight .