A new species of early human? Why we should be cautious about new fossil footprint findings

Matthew Robert Bennett, Bournemouth University and Sally Christine Reynolds, Bournemouth University A collection of fossil footprints at Laetoli in Northern Tanzania, preserved in volcanic ash and dated to 3.66 million years ago, are still yielding surprises almost 45 years after … Continue reading A new species of early human? Why we should be cautious about new fossil footprint findings

Non-Classified Earth Propulsion Systems

    Armadillo Aerospace‘s quad rocket vehicle showing visible banding (shock diamonds) in the exhaust plume from its propulsion system Propulsion is a means of creating force leading to movement. A propulsion system has a source of mechanical power (some type of engine or motor, muscles), and some means of using this power to generate force, such as wheel and axles, propellers, apropulsive nozzle, wings, fins or legs. Other components such as clutches, gearboxes and so forth may be needed to connect the power source to the force generating component. The term propulsion is derived from two Latin words: pro meaning before or forwards and pellere meaning to drive.   Vehicular propulsion Air propulsion Main article: Powered aircraft A turboprop-engined Tupolev Tu-95 An aircraft propulsion … Continue reading Non-Classified Earth Propulsion Systems

Guardians of the High Frontier – Air Force Space Command & United States Space Surveillance Network

    Air Force Space Command (AFSPC) is a major command of the United States Air Force, with its headquarters at Peterson Air Force Base, Colorado. AFSPC supports U.S. military operations worldwide through the use of many different types of satellite, launch and cyber operations. Operationally, AFSPC is under the Combatant Commander of the U.S. Strategic Command. More than 40,000 people perform AFSPC missions at 88 locations worldwide, including military, civilians and contractors. This includes approximately 22,000 military personnel and 9,000 civilian employees, although their missions overlap. On 1 December 2009, the intercontinental ballistic missile mission was transferred to the new Air Force Global Strike Command. AFSPC gained the cyber operations mission … Continue reading Guardians of the High Frontier – Air Force Space Command & United States Space Surveillance Network