The Defense Advanced Research Projects Agency (DARP) is a central research and development organization for the Department of Defense.
The organization is working with an aircraft company to design a surveillance drone shaped like a mapleseed. The remote-controlled nano air vehicles (or NAVs, for short) would be dropped from an aircraft. Then, it would whirl around a battlefield snapping pictures or delivering various payloads. Besides controlling lift and pitch, the wings will also house telemetry, communications, navigation, imaging sensors, and battery power. If built, the NAV may only be about 1.5 inches long and have a maximum takeoff weight of about 0.35 ounces.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.