This is a collection of useful calculators from Mechanical and Civil Engineering, including a few random GeoPhysics calculators.Special features include the ability to save calculated results, and the ability to share calculated results (for example, with classmates via email).The calculations are derived directly from Engineering texts, and include the following:Beam Deflection Calculator – Hollow RectangleBeam Deflection Calculator – Solid Round TubeBeam Deflection Calculator – Rectangular BeamsBeam Deflection Calculator – Round BeamsFuel Consumption CalculatorPotential Flight Time CalculatorTrip Fuel Consumption CalculatorPush / Pull Hydraulic Cylinder CalculatorSquare Tube Section properties CalculatorBlock Wall CalculatorConcrete Volume CalculatorConcrete Footing / Slab Pours CalculatorConcrete Column Fill CalculatorSeismic Geophone – Overburden or Upper Layer Depth CalculatorFind Weight on other planets – Online CalculatorWenner Spacing – Soil Resistivity CalculatorLuminosity of Stars Calculator