Military Surveillance

noun a visible streak left in the sky by an aircraft or rocket, typically consisting of small particles of condensed water or ice

• The pilot could see the vapor trail left behind by the jet as it soared through the sky.
• I love watching the vapor trail of airplanes when I look up in the sky.
• Check out that cool vapor trail the plane is making!
• His success left a vapor trail of envy among his competitors.

noun a type of tiny wireless sensors that can detect light, temperature, humidity, and other environmental factors

adjective describing the small size and advanced technology of the sensors

• Smart dust refers to tiny wireless sensors that can detect and transmit data on environmental conditions.
• Have you heard about smart dust? It's these really small sensors that can collect data and send it wirelessly.
• I can't believe how cool smart dust is! It's like magic sensors that do all the work for you.
• The idea of smart dust spreading throughout the city, collecting information on everything, is both fascinating and slightly eerie.

noun A small unmanned aerial vehicle (UAV) typically used for surveillance or reconnaissance purposes.

• The military uses microdrones for surveillance and reconnaissance missions.
• I got a cool microdrone for my birthday, it's so fun to fly around.
• Check out this sick microdrone I just bought, it can do all kinds of tricks!
• The microdrone of gossip was buzzing around the office, spreading rumors everywhere.

noun A type of robotic system designed to operate in the air or atmosphere.

• Aerobots are unmanned aerial vehicles designed for specific tasks.
• I heard they're using aerobots for surveillance in the area.
• Those aerobots are pretty cool, huh?
• The aerobots danced gracefully in the sky, like mechanical birds.