A rescue crew explores a mine. Rescue team with Oxygen Breathing Apparatus use elevator to enter the mine. Rescue team explore mine tunnel to search for trapped workers. Rescue team tests a lamp for presence of methane gas. Flame rises inside lamp due to methane gas in mine. Flame goes out in lamp due to lack of oxygen.
Canary in a coal mine and carbon monoxide detector use for rescue operations inside mines. Rescue team uses a carbon monoxide detector and a caged canary bird to detect presence of carbon monoxide. Canary bird in cage expires due to high carbon monoxide.
Psychological warfare operations (PSYOP) and information dissemination demonstration by the United States Army during the Cold War. A loudspeaker jeep hidden distantly behind clump of trees in a grassy field. A tank (likely a Sherman M4 tank) with a loudspeaker moves across a field. Leaflets distantly visible in the sky. A B-26 plane flies past a field. More leaflets fill the sky distantly visible. Leaflets falling on the fields. A United States Army L-16 plane flying low, dropping leaflets over soldiers.
Psychological warfare operations (PSYOP) and information dissemination demonstration by the United States Army during the Cold War. A jeep with a loudspeaker driving on a field, driving into the bush. Two United States soldiers set up a horn loaded loudspeaker array in a field. A soldier speaking into a microphone, probably a lip-ribbon microphone or "lip mic" used to amplify in noisy environments. Two soldiers arrange a horn loaded loudspeaker array into place behind bushes.
Psychological warfare operations (PSYOP) and information dissemination demonstration by the United States Army during the Cold War. Two United States soldiers remove a smoke canister from a 105mm HE smoke shell at a small wooden table in a forest. They insert a pack containing leaflets inside the shell to replace the smoke canister. Soldier reassemble the shell containing leaflets. A soldier takes away the shell.
Psychological warfare operations (PSYOP) and information dissemination demonstration by the United States Army during the Cold War. Two United States soldiers a metal retaining ring containing a large roll of leaflets. A large bomb is opened by soldiers. Soldiers set in four large rolls of leaflets inside the bomb. A soldier cuts strings to close the bomb. The two United States soldiers carry the bomb away.
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