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{{Short description|Portuguese chemical engineer}} ...[[Portugal|Portuguese]] [[chemical engineer]]. He is emeritus Professor of Chemical Engineering at [[Universidade do Porto]] and Director of the Laboratory of ...

...per kilogram.<ref>Perry, R.H. and Green, D.W, (2007) ''[[Perry's Chemical Engineers' Handbook]]'' (8th Edition), Section 12, Psychrometry, Evaporative Cooling ...ls available from typically used arcjet engines are very low compared with chemical engines. ...

*[[Connecting rod]]: a device invented by Roman engineers to transform circular motion into linear motion. ...700 BC<ref>The inventions that changed the world, Reader's Digest (1982) [Portuguese edition of 1983]</ref> ...