- Calculate the second moment of area and radius of gyration of common shapes about weak and strong axes
- Combine primary and shear stresses into equivalent and principal stresses & their cosines
- Find, sort and reorganise the properties of nature's atomic elements with active periodic table
- Calculate unknowns in principle engineering formulas: stress, moments, power, energy, capstans, fluids, etc.
- Calculate the properties of triangles and triangular configurations including inscribed and circumscribed circles

Available Now▼
2ᴺᴰ Moment of Area
2ᴺᴰ Moment of Area+
Added Mass & Drag
Areas & Volumes
Balancing (rotary)
Beam Strength
Beam Strength+
Bearings (low friction)
Bearings (plain)
Bending Moments
BiMetallic Strip
Buoyancy
Carbon Steel
Catenary
Catenary+
Cathodic Protection
Centrifugal Force
Colebrook & Fanning
Column Buckling
Combined Stress
Co-ordinates
Copper Alloys
Electrical Current
Elliptical Curves
Engineering Basics
Explosions
Fans
Fatigue
Flange Gaskets
Flanges
Floors
Fluid Forces
Fluid Numbers
Friction
Galvanic Corrosion
Gears
Hardness Conversion
HPHT Flexible Pipe
Lift Rigging
Logs & Trig
Machining Tolerances
Metal Properties
Mode Shapes
Ocean Waves
Optical Lenses
Padeyes
Partial Pressures
Piling
Pipe Flow
Pipe Flow+
Pipe Strength
Plastic Stress in Beams
Plate Deflection
Pressure Vessels
Reel Capacity
Resolution of Forces
Screw Thread Machining
Screw Threads
Shafts
Shock Loads
Spring Coefficients
Spring Strength
Steel Beam Sizes
Stress Concentration
Table of the Elements
Thermal Conductivity
Trigonometry
UniQon
Upheaval Buckling
Velocity & Acceleration
Vessel Motions
Vessel RAOs
Vibration Damping
Vortex Shedding
Walls, Barriers & Tanks
Weight Lifting
Welding
Wire Rope

Technical Help▼
2ᴺᴰ Moment of Area
2ᴺᴰ Moment of Area+
Added Mass & Drag
Areas & Volumes
Balancing (rotary)
Beam Strength
Beam Strength+
Bearings (low friction)
Bearings (plain)
Bending Moments
BiMetallic Strip
Buoyancy
Carbon Steel
Catenary
Catenary+
Cathodic Protection
Centrifugal Force
Colebrook & Fanning
Column Buckling
Combined Stress
Co-ordinates
Copper Alloys
Electrical Current
Elliptical Curves
Engineering Basics
Explosions
Fans
Fatigue
Flange Gaskets
Flanges
Floors
Fluid Forces
Fluid Numbers
Friction
Galvanic Corrosion
Gears
Hardness Conversion
HPHT Flexible Pipe
Lift Rigging
Logs & Trig
Machining Tolerances
Metal Properties
Mode Shapes
Ocean Waves
Optical Lenses
Padeyes
Partial Pressures
Piling
Pipe Flow
Pipe Flow+
Pipe Strength
Plastic Stress in Beams
Plate Deflection
Pressure Vessels
Reel Capacity
Resolution of Forces
Screw Thread Machining
Screw Threads
Shafts
Shock Loads
Spring Coefficients
Spring Strength
Steel Beam Sizes
Stress Concentration
Table of the Elements
Thermal Conductivity
Trigonometry
UniQon
Upheaval Buckling
Velocity & Acceleration
Vessel Motions
Vessel RAOs
Vibration Damping
Vortex Shedding
Walls, Barriers & Tanks
Weight Lifting
Welding
Wire Ropes

Q & A▼
General
2ᴺᴰ Moment of Area
2ᴺᴰ Moment of Area+
Added Mass & Drag
Areas & Volumes
Balancing (rotary)
Beam Strength
Beam Strength+
Bearings (low-friction)
Bearings (plain)
Bending Moments
BiMetallic Strip
Buoyancy
Carbon Steel
Catenary
Catenary+
Cathodic Protection
Centrifugal Force
Colebrook & Fanning
Column Buckling
Combined Stress
Co-ordinates
Copper Alloys
Electrical Current
Elliptical Curves
Engineering Basics
Explosions
Fans
Fatigue
Flange Gaskets
Flanges
Floors
Fluid Forces
Fluid Numbers
Friction
Galvanic Corrosion
Gears
Hardness Conversion
HPHT Flexible Pipe
Lift Rigging
Logs & Trig
Machining Tolerances
Metal Properties
Mode Shapes
Ocean Waves
Optical Lenses
Padeyes
Partial Pressures
Piling
Pipe Flow
Pipe Flow+
Pipe Strength
Plastic Stress in Beams
Plate Deflection
Pressure Vessels
Reel Capacity
Resolution of Forces
Screw Thread Machining
Screw Threads
Shafts
Shock Loads
Spring Strength
Spring Coefficients
Steel Beam Sizes
Stress Concentration
Table of the Elements
Thermal Conductivity
Trigonometry
UniQon
Upheaval Buckling
Velocity & Acceleration
Vessel Motions
Vessel RAOs
Vibration Damping
Vortex Shedding
Walls, Barriers & Tanks
Weight Lifing
Welding
Wire Ropes

Useful Stuff▼
Algebra
Trig Functions
Calculus Max-Min
Differentiation Rules
Differentiation Trig
Differentiation Logs
Integration Methods
Standard Integrals
Stiffness & Capacity
Mohr's Circle
Earth's Atmosphere
Earth's Properties
Stars & Planets
Laws of Motion
Solar System Orbits
Planetary Spin
The Atom
Brakes and Tyres
Vehicle Impacts
Speeding vs Safety
Surface Finish
Pressure Classes
Hardness Conversion
Thermodynamics
Steam (properties)
Heat Capacity
Work Energy Power

Materials▼
Carbon Steel
SAE Steel Grading
Plain Carbon Steels
Special Carbon Steels
Alloy Carbon Steels
Stainless Steels
Uses
Utilisation

PhD Suggestions▼
Assignments...
Earth
Fuels
Pollution
Sub-atomic Physics
Transport
Fact, Fiction & Hmm!

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