Criminals have been using drones in a variety of ways. They use them to prepare house break-ins, observe larger targets, spot security gaps, and determine security guard patterns. Militant organizations have started employing drones to further their terrorism. The small…
There are three major launch types for spacecraft: vertical takeoff, horizontal takeoff, and air launch. The cost of launching into space is often measured by the change in velocity required to reach the destination orbit, known as delta-v or Δv.…
The current Armed drones like Predators and Reapers are essentially remote controlled that is they involve human operators remotely controlling the vehicle with the assistance of fairly low levels of automation for some functions (e.g., the operator specifies waypoints to…
A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.0 miles per gallon and drives around 11,500 miles per…
In the history of spaceflight, almost all spacecraft have been manufactured and assembled on the ground, then integrated into a launch vehicle for delivery into orbit. This approach imposes significant limitations on the size, volume, and design of payloads that…
Humanitarian Crisis scenarios occur frequently and they typically require immediate rescue intervention. In many cases, the scene conditions may be prohibitive for the human rescuers to provide instant aid, as they have to act within hazardous conditions, like collapsed buildings,…
The civil global aviation market has experienced considerable economic growth in recent years and will keep increasing. It is estimated that around 1300 new international airports will be required, and the commercial aircraft fleet will double by 2050, with a…
A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.0 miles per gallon and drives around 11,500 miles per…
Energy storage is becoming increasingly important to the power industry. Lithium-ion battery technology has been implemented in many locations, but flow batteries offer significant benefits in long-duration usage applications and situations that require regular cycling throughout the day. With…
The function of the propulsion system is to produce thrust, which is the force that moves a rocket through air and space. Different propulsion systems generate thrust in different ways, but always through some application of Newton’s third law of…