Basics

Basic Information as SI-system, Unit converters, Physical constants...

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Acceleration of Gravity and Newtons Second Law

Acceleration of gravity and Newtons Second Law - SI and Imperial units.

Acceleration Units Converter

Convert between common units of acceleration

Air Properties

Air properties - temperature, density, specific heat, thermal conductivity, expansion coefficient, kinematic viscosity and Prandtl number for temperatures between -150oC and 400oC.

Angle Converter

Online angle units converter

British Imperial System

Principal system of units

Circles - Circumferences and Areas

Area and circumferences of circles with diameters in inches

Conversion Chart inch to mm

Convert fractional and/or decimal inches to metric mm or vice versa

Density, Specific Weight and Specific Gravity

An introduction and definition of density, specific weight and specific gravity - formulas with examples

Equilibrium

Mechanical, thermal, electrostatic, phase and chemical equilibrium

Exponents

Fractional and integer exponents laws

Flow Units Converter

Convert between common used volume flow units like gpm, liter/sec, cfm, m3/h and more - online flow unit converter

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Fraction-Decimal Equivalents

Inches - fractional decimal equivalents

Horsepower Estimation for Pumps, Fans and Turbines

A definition of British Horse Power for pumps, fans and turbines and how to convert to other common units

Inches and Decimal Equivalents

Decimal equivalents of eights, sixteenths, thirty-seconds and sixty-fourths of an inch

Length Units Converter

Convert between common length units like meters, feet, inches, nautical miles and many more

Logarithms

Rules of logarithms

Mass and Weight

What is weight and what is mass? An explanation of the difference between weight and mass

Miscellaneous Measuring Units

Some common measuring units - gross, dozen, quire, sheets ..

Mixtures, Solutions and Suspensions

The difference between mixtures, solutions and suspensions

Mole

The mol is the SI base unit that measures an amount of substance

Natural Trigonometric Functions

Sine, Cosine and Tangent - Natural Trigonometric Functions

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Online Fuel Equivalents Calculator

Online calculator to compute the fuels equivalents - oil and gas

Online Pressure Units Converter

Convert between common pressure units like Pa,  bar, atmosphere, pound square feet, psi and more - with converting tables

Online Units Conversion Calculator

Convert Energy, Pressure, Volume, Density, Specific Volume, Specific Heat (Entropy), Enthalpy, Thermal Conductivity, Viscosity (absolute) or Coefficient of Heat Transfer units

Ounces and Pounds converted into Grams

Converting ounces (ozs.) and pounds (lbs.) into grams (g)

pH Definition

An introduction to pH

Polar Moment of Inertia of Masses

The polar moment of inertia of a body depends on the mass of the object, its shape and its relative point of rotation

ppm - parts per million

ppm - parts per million - is commonly used as a unit of concentration

Prefix Names of Multiples and Submultiples of Units

Prefixes and decimal equivalents

Pressure

An introduction to pressure - the definition and presentation of common units as psi and Pa and the relationship between them - online pressure units converter

Pressure to Head Unit Converter

Convert between common units for pressure and head - lb/in2, atm, inch mercury, bars, Pa and more

Properties and State

Concepts of properties and state

Radians

The radian - a unit of angle measure

Ratio and Proportion

The ratio and proportion between two quantities

Real Numbers Algebra

Real numbers algebra - commutative law for addition, associative law for addition and more

SI System

An introduction to the SI-system

Specific Heat Capacity Converter

Online specific heat calculator with the most common units

Temperature

A short introduction to temperature - including Celsius, Fahrenheit, Kelvin and Rankine definitions - online temperature converter

The Elements

The elements with name, symbol, atomic number and weight

Unit Converter with the most Common Units

Common converting units for Acceleration, Area, Density, Energy, Energy per unit mass, Force, Heat flow rate, Heat flux, Heat generation per unit volume and many more

USCS - United States Customary System Units

United States Customary System Units or Imperial Units

Vector Addition

Online vector calculator - add vectors with different magnitude and direction

Velocity Units Converter

Convert between common velocity and speed units - with an online converter

Volume and Surface of some Common Solids

Surface and volume of solids like rectangular prism, cylinder, pyramid, cone and sphere

Volume Units Converter

Convert between common volume units like cubic meters, cubic feet, cubic inches and many more

Water - Pressure and Head

Pressure in pounds per square inch and head in feet of water

Water Content in Products

Water content before and after drying in some common materials as cork, grain, soap, peat, wood and more



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Resources, Tools and Basic Information  for Engineering and Design of Technical Applications!

Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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