Refine Your Search

United States USA 1969 stock footage and images

- Showing 32875 to 32880 of 34837 results
Snow cover behavior and stability being observed and recorded with the help of instruments in Alta, Utah.

A training film about the means of forecasting avalanches in Alta, Utah. A Ram Penetrometer being used by a ranger to observe and study the behavior of snow cover. It measures the hardness of snow. A ranger digs a pit alongside the penetrometer with a shovel. Snow temperature being recorded with the help of a dial thermometer in the dugout. Layering of snow being recorded by the ranger to detect an avalanche. About half meter long sample tubes being inserted in different layers of snow. Sample tubes being removed and weighed to determine the water content and stability. Similar tests being conducted along a fracture line. A ranger with a penetrometer at the fracture line. Snow layers being observed and recorded at the fracture line. Ram resistance and slope angles being measured and recorded at the fracture point to make a profile of the fracture line.

Location: Alta Utah USA
Date: 1950
Duration: 3 min 40 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059581
Snow rangers ski down the test slopes to detect the actual behavior of the snow cover in Alta, Utah.

A training film about the means of forecasting avalanches in Alta, Utah. A snow ranger skis down a test slope in Alta, Utah to detect the actual behavior of the snow cover. Snow drifts down a slope setting in motion a slab avalanche. A ranger test skies along the sides of a slope avoiding the center of the slopes. Snow being dislodged and drifts down due to test skiing. Ranger falls down while skiing.

Location: Alta Utah USA
Date: 1950
Duration: 2 min 40 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059582
Test skiing, explosives and avalauncher being used to detect the occurrence of an avalanche in Alta, Utah.

A training film about the means of forecasting avalanches in Alta, Utah. A snow ranger skies down a slope during testing. Incorrect and correct or safer ways of test skiing demonstrated. Explosives being used to set an avalanche in motion. Cables attached and a charge package of TNT (Trinitrotoluene) prepared. Fuse lit up with an igniter. A man throws the charge and explosion results in a crater indicating the least possibility of occurrence of an avalanche. Another man throws a charge and results in slab avalanche as snow breaks up in blocks. An electric cap being used to control time of detonation of explosive. A man throws the charge and a slab avalanche occurs as a result of a slide set on motion by the explosion. A man works on a projectile called avalauncher. Men work on the projectile and fire it at a slope.

Location: Alta Utah USA
Date: 1950
Duration: 6 min 39 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059583
Military weapons like 81 mm mortar and 75 mm Howitzer being used to set off avalanches in Alta, Utah.

A training film about the means of forecasting and controlling avalanches in Alta, Utah. A 81 mm mortar being used to set off an avalanche. Men work on the mortar. A 75 mm Mountain Howitzer being worked on for setting off an avalanche. Men load a shell into the Howitzer and fire. A slab avalanche is set off as snow drifts down a slope. A dust cloud is formed.

Location: Alta Utah USA
Date: 1950
Duration: 1 min 19 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059584
Military weapons like 105mm Recoilless Rifle and a 75mm Howitzer being used to set off avalanches in Alta, Utah.

A training film about the means of forecasting and controlling avalanches in Alta, Utah. A 75 mm Mountain Howitzer fired from a highway. It does not result in an avalanche. A 105 mm Recoilless Rifle being fired at a slope, which does not result in an avalanche. Backlash of the rifle results in two avalanches down a slope.

Location: Alta Utah USA
Date: 1950
Duration: 1 min 1 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059585
Military weapons like 105 mm Recoilless Rifle and a 75 mm Recoilless Rifle used to set off avalanches in Alta, Utah.

A training film about the means of forecasting and controlling of avalanches in Alta, Utah. A 105 mm Recoilless Rifle fired from a tower. A 75 mm Recoilless Rifle fired from a temporary tower. The Shell impacts and snow drifts down a slope at a great speed.

Location: Alta Utah USA
Date: 1950
Duration: 59 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675059586
<< Previous | Page: 1 ... 5480 5481 5482 ... 5807 | Next >>