Science and technology. Episode 2: In this episode we learn about the science behind the failures when you cast a fishing net, Build a sled track alone and jump head to shallow waters. Sat.H.

The risks and pace are high in the American shipyard world. The race is at its peak to return the vessel as quickly as possible to fully functioning waters. Sat.H.

Certificate. 5. A treasure in the depths of the: The guys come to Colorado for a spectacular display of military collections, And Sean finds a silver rod that may have been part of a famous Spanish ship. Sat.H.

Certificate. 6. Pirate Gun: Sean fires an adjustable cannon from the middle of the 5th century-18, While a Hummer checks a sword a salesman tells him it's a Japanese katana sword. Sat.H.

After a dangerous accident, Chris and Jesse return to the crash site to scramble trees. Alex came across a surprise on his journey on the river. Michael loses control of his dog sled. Sat.H.

Certificate. 10. Nightmare in Afghanistan: National Airlines Flight 102, Took off from Bagram Afghan airport with military luggage. Within seconds, the pilots lost control of the Boeing 747 when it broke down and crashed to the ground. Sat.H.

Certificate. 1. Lethal access: After the crash of Northwest Airlines Flight 5719, Researchers discover pattern of abuse that led to fracture in team collaboration. Sat.H.

Certificate. 6. Lost atomic bombs: Data collected from research expeditions, Accurate scans and measurements and classified information, Help create photos and videos, Revealing the atomic secrets of the Cold War. Sat.H.

John Ryan, The owner of ''Shamrock Extraction and Towing''', Faced with a rusty 27-meter barge towing that has been swept ashore. Sat.H.

Certificate. 7. The Secret Flame: The Guys Go to Colorado Springs, Where Jim discovers one of the biggest items put up for auction: A World War II spotlight. Sat.H.

Certificate. 8. Elusive trigger: As they hunt for souvenirs, A police officer checks at a World War II automatic Browning rifle range, And Sean tries to estimate the value of two pistols that seem to be missing a minute. Sat.H.