| Physics and Science Reference by PhysLINK.com - http://www.physlink.com/Reference/Index.cfm Includes physical constants, online unit conversions, periodic table of elements, exact time, fundamental physical formulae and equations. - Read more |
| Eformulae.com - http://www.eformulae.com/ Online resource providing engineering, science, math, physics and chemistry formulae for reference. - Read more |
| Science & Engineering Encyclopaedia Version - http://www.diracdelta.co.uk/ Descriptions, equations, calculators, conversions and material data for engineering, mathematics, physics and chemistry. - Read more |
