A burgeoning economic, political and military power, China is also aiming to lay down a marker on the renewable energy sector. On 22 September 2020, President Xi declared China’s commitment to achieving carbon neutrality by 2060, at the 75th Session…...
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A rocket is defined as a technologically advanced reaction motor that can carry its oxidant to propel a launch vehicle. A reaction motor is used as a propulsion device to generate a forward push by expelling the rocket structure in…...
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The International Energy Agency’s has found that the accelerating demand for electricity – due to a growing global population and rising levels of affluence – is on course to outpace the growth of renewable energy and increase reliance on fossil…...
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The potential use of nuclear weapons poses the greatest danger to U.S. security. According to the U.S. National Security Strategy, Recently Nuclear threat is rising again due to nuclear arms race in asia, modernisation of nuclear arsenal by Major and…...
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Transport is responsible for around 23% of energy-related carbon dioxide emissions globally. This is expected to double by 2050. Motor vehicles also put a burden on society, especially in urban environments where they are chiefly responsible for noise and air…...
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Vehicles propelled by rocket engines are commonly called rockets. Rocket vehicles carry their own oxidizer, unlike most combustion engines, so rocket engines can be used in a vacuum to propel spacecraft and ballistic missiles. Compared to other types of jet…...
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Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. At present, 90% of the sea-going naval ship are diesel-powered. To achieve the safe upper limit for global warming of 1.5 degrees…...
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Millimeter waves are electromagnetic signals with frequencies ranging from 30 to 300 GHz that correspond to wavelengths of 10 to 1 mm in the free space. Electromagnetic waves in the millimeter-wave band (with frequencies between 30 and 300 GHz, or wavelengths…...
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The past few decades have seen an escalation of power densities in electronic devices, and in particular in microprocessor chips. Together with the continuing trend of reduction in device dimensions this has led to dramatic increase in the thermal issues…...
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In traditional aircraft design, airframes and engines are designed separately and bolted together. This leads to inefficiencies due to additional drag. The approach also leads to propulsive inefficiencies via non-distributed propulsion. Hovering and VTOL requirements introduce even more complexity, size…...
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