Vic Morrow hosts and narrates this classic episode of the U.S. Army's The Big Picture series. Cameras capture the ultimate weapon in the U.S. Army's arsenal-the soldier. As technology increased the soldier's potential, the importance of effective ordnance increased. Featuring footage provided by the National Archives and Records Administration, this fascinating documentary examines the testing and evaluation of weapons and equipment that ensured the...

Relive Neil Armstrong’s incredible life story — from his time as pioneer of high-speed flight to that first legendary step on the moon — through never-before heard interviews from his friends and family.

To extract precious metals found beneath the earth requires a massive 232-ton, two-story-tall mining truck with a load capacity of 320 tons - a giant earth-mover like the Komatsu 930E. This amazing engineering achievement is made possible by five essential raw ingredients: coal, chromium, mineral oil, latex rubber and sulfuric acid, an electron superhighway that generates massive power.

Fire, Verda, Digit and Toola have made plans to visit Simka like "real guests" who first ring the doorbell before entering. But their plan is blocked when they discover that the doorbell isn't working. Please preview this videos as it models fire, which is a very dangerous thing. Also in this video, the animated characters put 2 wires together to see what will happen. This is a very dangerous idea and is poor modeling. It should be emphasized that...

Three blue-collar geniuses challenge each other with various puzzles and problems to determine who is The Smartest Guy in the Room. Terry and Guy must build self-propelling boats made of materials found on an ice cream truck. Randy competes head to head with them in a weights and measurements challenge.

Volvo's ReCharge hybrid car has an electric motor in each of its wheels, helping to reduce the amount of carbon dioxide created when being driven. But a car's performance on the road is only one part of its overall green rating. With the ReCharge serving as an example, this program shows how Life Cycle Assessment is employed to evaluate the environmental impact of manufactured goods-from their raw materials, to production, usage, and disposal. Designers...

A ride through the mountains and canyons with the mammoths proves chaotic for the Islanders when they experience the effects of sound reverberation. Brenda’s echoes startle the mammoths who run in every which way. Nevertheless, Brenda and co. make the most of their lesson and use the principles of SOUND to return the hairy beasts back to safety.

Host Emily Calandrelli speaks to experts who are learning everything they can about asteroids and their potential impact on earth. From the dinosaur killer to the Chelyabinsk meteor of 2013 - we learn about the destructive power of asteroids. Emily takes a trip to the Ames Vertical Gun Range for an experiment that predicts impact size on the moon and the Earth. Emily also travels to Seattle Washington to meet a company that has a plan to profit from...

This video covers the general installation of electrical conduits and wires and aspects of wiring particular to new construction and older homes. Pulling cable on a construction site and setting up a structured wiring system are emphasized. Tips on how to make sense of older wiring methods are also included, as well as approaches to routing wires on rehab and renovation jobs. Correlates to the National Center for Construction Education and Research...

Updated for 2009! Although the specific procedures for using load testers vary by car make and model, the general procedures are similar for all testers and vehicles. This video explains how to use a load tester to analyze the state of the battery, starting system, and charging system. Footage of an auto tech in action shows viewers how to check for a poor connection at the battery cables, measure battery voltage, check the amount of current drawn...