Basic twin lobe rotary air blower pÃ¬inciple Let us focus on twin lobe blowers, also popularly know as 'Roots blowers' on the name of its inventors. Twin lobe rotary air blowers belong to the category of positive displacement .blowers. They consist of a pair ot involute profiled (shape of 8) lobes/rotors rotating inside an oval shaped casing, closed
Top 10 Elite Fighting Units. Seal Team 6, the U.S. special-operations force that took out Osama bin Laden, is one of the most highly trained units in the world. For years, governments have prepared small, mobile forces that specialize in everything from ending a hostage situation to stealthily eliminating enemy combatants. Full List.
Garry Kasparov: Putin is 'the most dangerous man' in the world and a bigger threat to the U.S. than the Islamic State. September 30, 2014. Garry Kasparov: Putin is 'the most dangerous man' in the world and a bigger threat to the U.S. than the Islamic State. 1  Arguably the world's best chess player ever, Garry Kasparov is on a new mission. He hopes to convince the world that the biggest threat to global unrest is not the Islamic State, al-Qaida or North Korea.