ارتباط با اولیاء و دانش آموزان. نقاشی چهار بعدی بخش سوم. نقاشی چهار بعدی بخش دوم. درختی فوق العاده با میوه چسبیده به تنه. درمان معجزه آسای تخم مرغ.

Two Years Before The Mast. Richard Henry Dana, was born in Cambridge, Massachusetts. He left his studies at Harvard in the hope that a sea voyage would aid his failing eyesight. He shipped out of Boston as a common seaman on board the brig Pilgrim bound for the Pacific, and returned to Massachusetts two years later. Two Years Before the Mast.

Dana is a world leader in highly engineered solutions for improving the efficiency, performance, and sustainability of powered vehicles and machinery. Dana supports the passenger vehicle, commercial truck, and off-highway markets, as well as industrial and stationary equipment applications. Our leading driveline systems are on all types of wheeled vehicles, with both conventional and alternative-energy powertrains. All precision engineered to elevate performance, efficiency, and productivity.