Drones are increasingly making an impact on society and economy. Drones are used by the military for intelligence gathering, anti-aircraft target practice, and also for weapons platforms. They are also used for many civilian roles such as agricultural surveillance, mapping, tracking, search and rescue, traffic monitoring, firefighting, weather monitoring, engineering …

Torpedoes are self-propelled guided projectiles that operate underwater and are designed to detonate on contact or in proximity to a target. For the U.S. Navy, the modern torpedo enables submarines to defeat surface and undersea threats and gives surface ships and aircraft the means to reach beneath the surface and …

Some parts of our bodies can repair themselves quite well after injury, but others don’t repair at all. We certainly can’t regrow a whole leg or arm, but some animals CAN regrow – or regenerate – whole body parts. So what can we learn from these regenerative animals? Regeneration means …