Most spacecraft propulsion concepts can be classified into two categories: chemical and electric. Chemical propulsion relies on chemical reactions and can produce high thrust, but requires a large amount of fuel. Electric propulsion uses electromagnetic fields to accelerate ionized gases and is very fuel-efficient, but produces small amounts of thrust …
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US Military plans Battlefield Small Nuclear Reactors (SMR) for military bases and deployed troops
Energy is a critical enabling component of military operations and demand for it will continue to increase over time. In particular, energy usage during contingency operations will likely increase significantly over the next few decades. The modern operational space has amplified the need for alternative energy sources to enable mobility …
Read More »DARPA RPOD developing E-Waste recycling to address supply chain disruptions of critical elements
Consumer electronics constitute a rapidly increasing source of waste. Cell phones, tablets and the like are typically made of non-renewable, non-biodegradable, partly environmentally toxic materials. A report from United Nations University (UNU) found that the world produced 41.8 million metric tons of e-waste in 2014 – an amount that would fill …
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