Engineering

Sustainable Design and Life Cycle Assessment in CAD

Sustainable design as an engineering discipline: design guidelines, the product life cycle, life cycle assessment, the four core environmental impact factors, ISO framework stan…

The Engineering Design, CAD, Manufacturing and CAM Processes

How the engineering design process, the CAD process, the manufacturing process and the CAM process nest together, and what each one contributes between an idea and a finished en…

The SOLIDWORKS Environment: Interface, Options and Templates

Orientation to the CAD working environment: the three panes and the modes they serve, system options versus document properties, customisation and productivity tools, templates …

Electrical13 Aug 2026 · 7 min read

Alternating Current: The Transformer, Polyphase and the Contest with Direct Current

Five milestones that removed the distance limit on electricity supply, decided a commercial contest fought partly by public smear, and ended in the two systems being combined ra…

Biology as Manufacturing: Recombinant Proteins, Gene Editing and mRNA at Scale

Three milestones that turned living systems into a manufacturing platform, made the instructions programmable, and compressed the development timeline to months.

Electrical13 Aug 2026 · 6 min read

Biomedical Engineering Begins: The ECG, the Defibrillator and Keyhole Surgery

Between 1899 and 1910 the living body became an object of measurement, controlled energy delivery and remote manipulation. How each of those three problems was actually solved.

Bolted Joint Design

Designing bolted joints in tension, shear, gasketed pressure joints and combined loading: stress area, preload stress, assembly torque, bearing on the plate and shank against th…

Civil & Structural13 Aug 2026 · 6 min read

Boring and Lifting: Tunnel Boring Machines and the Safety Elevator

Two machines that move in opposite directions and solve the same problem: making ground and height usable without disturbing what is already there.

Civil & Structural13 Aug 2026 · 6 min read

Building in Brick and Stone: The Ziggurat, the Corbel and the True Arch

Four milestones in spanning a gap and standing up, using materials strong in compression and nearly useless in tension.

Civil & Structural13 Aug 2026 · 7 min read

Building Tall: Foundations, the Skeleton Frame and Wind

Four milestones in which building height stopped being limited by structure and started being limited by economics.

Chemical Engineering at Scale: Ammonia Synthesis and the Continuous Process Plant

Industrial ammonia synthesis resolved a direct conflict between thermodynamics and kinetics, and in doing so established catalysis, high pressure, recycle and continuous operati…

Closing the Loop: Fly-by-Wire, Functional Safety and Propulsive Landing

Three milestones in which software became the thing keeping a machine stable, and one standard written because that made software a structural safety concern.

Compression Ignition: Otto, Diesel and Thermal Efficiency

Three milestones in which an engine was designed from a thermodynamic argument rather than developed from an existing machine, and immediately outperformed everything else.

Electrical13 Aug 2026 · 9 min read

Computation as Infrastructure: Utility Computing and Machine Learning at Scale

Two recent milestones included for their engineering content rather than settled historical weight: computing became a utility, and pattern recognition became a matter of scale.

Computing & Software13 Aug 2026 · 8 min read

Connecting to SolidWorks from Visual Studio in C# and VB.NET

Setting up a .NET project against the SOLIDWORKS interop assemblies, attaching to a running session, starting one when none exists, casting rules, and COM object lifetime discip…

Mechanical13 Aug 2026 · 17 min read

Detail Drafting in CAD

Producing detail drawings in CAD — absolute, relative and polar coordinate entry; the template and layer standard; dimension styles set to AS 1100; the model-space insertion-sca…

Mechanical13 Aug 2026 · 11 min read

Electric Motor Selection

Selecting three phase and single phase squirrel cage motors: frame size, pole count and synchronous speed, slip and design-load speed, part-load efficiency, IP protection and ra…

Electrical13 Aug 2026 · 10 min read

Electric Traction: Railway Electrification and a Second Current War

Three milestones in which electricity moved into railway traction, and in which the alternating-versus-direct argument was fought again under different constraints.

Engineering Education: From Apprenticeship to Degree

Four milestones in the institutional answer to applied science: if engineering rests on theory, apprenticeship alone can no longer produce an engineer.

Civil & Structural13 Aug 2026 · 8 min read

Engineering the System: Containerisation, Motorway Networks and Critical Path Scheduling

Three milestones within two years, none of which invented a device. Each fixed an interface or made a hidden structure explicit, and each generated more value than most inventio…

Computing & Software13 Aug 2026 · 8 min read

First SolidWorks Automation Tasks: Batch Export and Document Information

The guard preamble every SOLIDWORKS tool needs, batch export of every drawing sheet to DXF, save options and error codes, reading document information, and the system-units trap.

Flow Production Comes of Age: The Moving Assembly Line and Statistical Process Control

The moving line made work flow at a fixed cycle; the control chart made process variation intelligible. Together they define how physical goods have been made ever since.

Fluids and Comfort: Powered Flight, Sailing Hydrodynamics and Air Conditioning

Three milestones united by fluid mechanics: a machine that generates lift to fly, a rig that generates lift to outrun the wind, and a cycle that moves heat against its gradient.

Electrical13 Aug 2026 · 7 min read

From Amber to Electron: The Science Electrical Engineering Was Built On

Nine milestones over a century and a half, at the end of which a complete engineering discipline could be built from results none of whose discoverers were engineers.

From Vacuum to Engine: Savery, Newcomen, Smeaton and Watt

Five milestones across eighty years that turn a laboratory observation about atmospheric pressure into a general source of industrial power.

Generation Without Fuel: Photovoltaics and the Modern Wind Turbine

Two milestones whose importance lies in decades of accumulated process improvement rather than in a breakthrough, and in what a zero marginal fuel cost does to a power system.

Heat into Work: The Gas Turbine and the Fission Reactor

Two technologies with a straightforward efficiency argument that says run hotter, and one shared constraint: both are limited by what the hot parts are made of, not by thermodyn…

Helical Spring Design and Selection

Designing and selecting helical compression and extension springs: spring rate and pre-load, spring index, allowable stress by duty, the Wahl factor, active coils, free length w…

High Pressure and the Portable Engine: Trevithick and Evans

Three milestones that made the engine small enough to move, by doing the one thing James Watt refused to do.

History of Engineering: Complete Collection Index

Master index to a six-series reference collection covering the history of engineering from the first engineered cities to 2020, with every page listed by series and order.

Mechanical13 Aug 2026 · 13 min read

History of Engineering: From the First Cities to the Age of Steam

A structured reference series covering fifty-eight engineering milestones from the first engineered cities to the Rainhill trials, organised by engineering problem rather than b…

History of Engineering: Milestones of the Modern Era 1845-1910

A structured reference series covering twenty-six engineering milestones between 1845 and 1910, organised by engineering problem rather than by date.

History of Engineering: Milestones of the Modern Era 1911-1969

A structured reference series covering thirty-five engineering milestones between 1911 and 1969, organised by engineering problem rather than by date.

History of Engineering: Milestones of the Modern Era 1970-2020

A structured reference series covering forty-one engineering milestones between 1970 and 2020, organised by engineering problem rather than by date.

Hot Rolled Steel Section Selection

Selecting hot rolled steel sections for machine frames and supports: available grades and strengths, section families, and beam selection by section modulus including the self-w…

Iron at Scale: Coke Smelting, Puddling and the Boring Mill

Four milestones in metallurgy and machine tools without which the steam engine would have remained a curiosity, one of them driven by an environmental crisis.

Journal and Porous Bronze Bearing Selection

Selection of plain and porous bronze journal bearings using bearing pressure, surface velocity, the pv factor and the bearing modulus, with the boundary, thin-film and thick-fil…

Civil & Structural13 Aug 2026 · 8 min read

Learning from Catastrophe: Seven Investigations That Changed Practice

Seven formal investigations between 1979 and 2010 that changed engineering practice across industries. In every one, the physical mechanism was known or knowable beforehand.

Electrical13 Aug 2026 · 8 min read

Light and the Central Station: Electricity Finds a Mass Market

Six milestones in which electricity acquired its first mass market, and in which the decisive engineering turned out to be system design rather than lamp design.

Civil & Structural13 Aug 2026 · 7 min read

Long Spans and Hard Lessons: Sydney Harbour, Golden Gate and Tacoma Narrows

Two celebrated bridges and one destroyed one. The collapse taught the profession more than either success, and the mechanism is still widely taught wrongly.

Machine Element Design and Selection: Series Overview

A fifteen-part mechanical design reference covering bearings, belt and chain drives, couplings, gearboxes, gears, motors, shafts, springs, bolted and welded joints, power screws…

Machine Element Design by Proportion and Analysis

Designing machine elements from good proportions and verifying by strength of materials: rigid coupling proportions, knuckle joint geometry and complete stress analysis, and lev…

Electrical13 Aug 2026 · 6 min read

Machines That Sustain Life: Dialysis, the Heart-Lung Machine and the Pacemaker

Three devices that take over the function of an organ, under constraints unlike anything else in engineering: the load cannot be reduced and there is no safe shutdown state.

Making Things Differently: Additive Manufacturing and Composite Primary Structure

Three milestones that broke the link between geometric complexity and cost, and then took three decades each to reach certified service.

Civil & Structural13 Aug 2026 · 11 min read

Manufacturing Drinking Water: Seawater Reverse Osmosis and Supply Security

Australian metropolitan desalination turned urban water supply from a hydrological problem into an energy and membrane one, and produced an asset with an unusual duty profile.

Materials for a Harder Duty: Stainless Steel, Light Alloys and Synthetic Polymers

Five materials milestones that each removed a constraint designers had treated as fixed: corrosion, weight, fibre supply, glazing cost and the stiffness penalty of mass.

Materials That Built the Modern World: Steel, Plastics and Engineered Timber

How the Bessemer converter, the first synthetic polymers and engineered wood products replaced found material properties with specified, warranted ones.

Measurement and Method: Instruments, Mathematics and Experimental Science

Seven milestones in roughly a century, after which an engineer could calculate in advance what had previously only been learned by building.