Applications
There is a common perception that relativistic physics is not needed for practical purposes or in everyday life. This is not true. Without relativistic effects, gold would look silvery, rather than yellow. Many technologies are critically dependent on relativistic physics:
- Cathode ray tubes,
- Particle accelerators,
- Global Positioning System (GPS) – although this really requires the full theory of general relativity
Read more about this topic: Introduction To Special Relativity