Editing Nuclear salt-water rocket (section)

==Proposed design==
[[Chemical rocket]]s use heat energy produced by a chemical reaction to heat the gas products.  The hot products exit through a propulsion nozzle at a very high speed, creating thrust.<ref>{{cite journal |last1=Angelin |first1=Marcus |last2=Rahm |first2=Martin |last3=Gabrielson |first3=Erik |last4=Gumaelius |first4=Lena  |title=Rocket Scientist for a Day: Investigating Alternatives for Chemical Propulsion |journal=Journal of Chemical Education  |date=Aug 17, 2012 |volume=89 |issue=10 |pages=1301–1304 |doi=10.1021/ed200848r |bibcode=2012JChEd..89.1301A}}</ref>  In a [[nuclear thermal rocket]] (NTR), thrust is created by heating a fluid by using a nuclear fission reactor. The lower the [[molecular weight]] of the exhaust (hydrogen having the lowest possible), the more efficient the motor can be. However, in this engine the propellant can be any of many fluids having suitable properties as it does not participate in generating heat.<ref>{{cite web |last1=Babula |first1=Mariah |title=Nuclear Thermal Rocket Propulsion |url=http://trajectory.grc.nasa.gov/projects/ntp/ |archive-url=https://web.archive.org/web/20130611233450/http://trajectory.grc.nasa.gov/projects/ntp/ |url-status=dead |archive-date=June 11, 2013 |website=NASA.gov |publisher=NASA Space Propulsion and mission analysis office |access-date=May 1, 2016}}</ref> In a NSWR, the nuclear salt-water would be made to flow through a reaction chamber and out of an exhaust nozzle in such a way and at such speeds that critical mass will begin once the chamber is filled to a certain point; however, the peak [[neutron flux]] of the [[nuclear fission|fission]] reaction would occur outside the vehicle.<ref name="zubrin91"/>