All Engineering
Civil Engineering 21
Mechanical Engineering 201
Electrical Engineering 16
Physics 0
Mathematics 674
Computers 20
Sheetmetal 0
Welding 0
Guide4 Aug 2026The Programmable Machine: The Microprocessor, Flash Memory and Lithography ScalingThree milestones that made computation a component rather than a facility, gave it persistent storage, and kept both getting cheaper for five decades.6 min readRead MoreGuide4 Aug 2026From Amber to Electron: The Science Electrical Engineering Was Built OnNine 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.7 min readRead MoreGuide4 Aug 2026Networks and Protocols: Ethernet, Public-Key Cryptography, TCP/IP and the WebFour milestones that connected machines in a building, secured communication between strangers, joined dissimilar networks into one, and put a usable interface on top.7 min readRead MoreGuide4 Aug 2026Telegraphy: The First Electrical IndustryFour milestones in the first industry assembled deliberately out of laboratory physics, and the first to design against a transmission medium that could not be inspected.7 min readRead MoreGuide4 Aug 2026Untethered: Digital Mobile Telephony, Satellite Positioning and the SmartphoneThree milestones that separated communication from place, made position and precise time a free service, and folded a dozen devices into one.6 min readRead MoreGuide4 Aug 2026Light and the Central Station: Electricity Finds a Mass MarketSix 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.8 min readRead MoreGuide4 Aug 2026Computation as Infrastructure: Utility Computing and Machine Learning at ScaleTwo recent milestones included for their engineering content rather than settled historical weight: computing became a utility, and pattern recognition became a matter of scale.5 min readRead MoreGuide4 Aug 2026Alternating Current: The Transformer, Polyphase and the Contest with Direct CurrentFive 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 rather than one winning.7 min readRead MoreGuide4 Aug 2026The Grid: Large-Scale Generation, Transmission and InterconnectionInterconnection turned separate power stations into one synchronised machine spanning a country, buying shared reserve and merit order dispatch at the price of propagating faults.5 min readRead MoreGuide4 Aug 2026Electric Traction: Railway Electrification and a Second Current WarThree milestones in which electricity moved into railway traction, and in which the alternating-versus-direct argument was fought again under different constraints.5 min readRead MoreGuide4 Aug 2026Signals and Standard Time: The Telephone Network and the Great ClockA clock that keeps a city's time and a network that carries a city's voice are the same kind of engineering: both distribute a shared reference that nobody owns and everybody depends on.6 min readRead MoreGuide4 Aug 2026Signals Without Wires: Broadcasting, Television and RadarThree uses of the same physics that each forced a different discipline into existence: spectrum management, bandwidth engineering and the statistical theory of detection in noise.7 min readRead MoreGuide4 Aug 2026Biomedical Engineering Begins: The ECG, the Defibrillator and Keyhole SurgeryBetween 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.6 min readRead MoreGuide4 Aug 2026The Solid-State Revolution: The Transistor, the Integrated Circuit and the First NetworkThree milestones that replaced the vacuum tube, removed the wiring between components, and then removed the assumption that computers must be connected point to point.6 min readRead MoreGuide4 Aug 2026Machines That Sustain Life: Dialysis, the Heart-Lung Machine and the PacemakerThree 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.6 min readRead MoreGuide4 Aug 2026Seeing Inside: Computed Tomography, Magnetic Resonance Imaging and the GenomeThree milestones that made the interior of the body, and then the sequence of its instructions, into computable data.6 min readRead More