Lighter than air Balloons and the airplane.
Lava Lamp
Reconnaissance
Off the top of my head I can think of the land mine, the machine gun, the repeating rifle, the practical iron clad warship and the gun turret. They were all used to kill people. Michael Montagne - also there was the hot air balloons for reconnaissance missions
Hot air balloons were important during the Civil War because they were used for reconnaissance missions to gather information on enemy positions and movements. This aerial surveillance provided valuable intelligence to both Union and Confederate armies, allowing them to make informed strategic decisions on the battlefield. Additionally, balloons helped to revolutionize military surveillance and reconnaissance tactics during this time.
Before and during all combat operations
Aerial reconnaissance and radar.
The most recent pictures taken by the Lunar Reconnaissance Orbiter do not have a high enough resolution to show the LRVs, but you can see the tracks they left during the missions. See "Related Links" below.
The Reconnaissance Corps was created in 1941 during World War II by the British Army. It was established to fulfill the need for specialized units that could gather and provide information on enemy positions, movements, and intentions. The corps played a crucial role in reconnaissance and intelligence gathering throughout the war.
They supply power to the spacecraft during missions.
Richard Nixon was the President of the United States during the Apollo moon missions.
During World War I, airplane pilots transitioned into fighter roles as the need for aerial combat emerged. Initially used for reconnaissance, aircraft soon faced threats from enemy planes, prompting the development of tactics for air-to-air combat. Pilots began modifying aircraft with machine guns and other weapons, leading to the rise of dedicated fighter pilots who engaged in dogfights to gain air superiority. This evolution marked the beginning of aerial warfare as a critical component of military strategy.
In Venice, after you fly in Da Vinci's flying machine you get a codex page that is the instructions for the hidden gun.