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100 engineering ideas that have changed the world

Our first-floor lobby display showcases 100 ideas that changed the world, as chosen by IET members.

3D printing

AC power generation

Agricultural mechanisation

Air conditioning

Artificial satellites

Automobiles

Aviation

Bicycle

Brake caliper

Buildings & infrastructure

Cameras

Canned food

Carbon fibre

Cement

Colossus

Computer programming

Computing

Control systems

Copper

Data storage

Domestic electricity

Electric battery

Electric lamp

Electrical regulations

Electrical safety

Electromagnetic induction

Electronic semiconductivity

Elevators and escalators

Encryption / code breaking

Fibre optic communication networks

Fire detection

Flood defence

Glass

Hydraulics

IET and E&T Innovation of the Year and Start-up

Innovation Award Model-Based Engineering and Power / Energy category

Innovation Award Technology Transfer category

Integrated electronic circuitry

Innovation Award Young Innovators category

Internal combustion engine

Internet

Jet engine

Lasers

Light emitting diodes

Lightning protection

Measurement

Measurement of length

Medical devices

Medical imaging

Microphone

Microprocessor

Microscope

Mobile telephony

Movable type printing

Nanotechnology

Navigational instruments

Nuclear power

Oil production

Optical data storage

Particle physics

Photography

Plastics

Pneumatic tyre

Portable music

Power transmission and distribution

Radar

Radio

Railway electrification

Refrigeration

Road infrastructure

Robotics

Satellite navigation

Sewer systems

Shipping

Solar energy

Sound detection/sonar

Space exploration

Space transportation

Spectacles

Steam technology

Steel

Suspension bridge

Switches

Synthetic textiles

Telegraphy

Telephony

Telescope

Television broadcasting

Timekeeping

Traffic signals

Trains

Transistor

Triode valve

Typewriter

Video recorder

Water supply

Weaponry

Wearable technology

Wind energy

X-rays