Their research group has some amazing videos of quadrotors in coordinated flight, and quadrotors working together to perform a coordinated construction task. The GRASP lab is involved in numerous other projects that are worth checking out.
Here is a video of quadrotors in coordinated flight:
Tokyo Fire Department’s rescue robot transfers a mock victim onto itself during an anti-terrorism exercise in the response to a radiological dispersal device in Tokyo, on November 7, 2008. Tokyo Metropolitan government conducted the exercise with eleven organisations including Metropolitan Police Department. (TOSHIFUMI KITAMURA/AFP/Getty Images)
European researchers are working on an EU-funded project called HISMAR (Hull Identification System for Marine Autonomous Robotics) to develop a robotic hull cleaning system to remove marine growth from ships. Marine growth significantly increases the friction of a ship moving through water, which significantly increases the cost in terms of energy. In addition, marine growth poses an environmental hazard.