By Oliver Bean - Engineering Student @ Wadham College, Oxford
One technology that has been critical to digitalisation is wireless communication. Without it, we wouldn’t be able to access satellites and GPS - or even use our home WiFi. Wireless technologies utilise electromagnetic waves - these are invisible to the naked eye but ubiquitous in the modern world. Radar was the first major use of electromagnetic waves and ‘wireless’ technology; radar created the foundations for our entire modern communication systems.