Yes. You can start learning relativity on Coursera for free in two ways:

1. Preview the first module of many relativity courses at no cost. This includes video lessons, readings, graded assignments, and Coursera Coach (where available).
2. Start a 7-day free trial for Specializations or Coursera Plus. This gives you full access to all course content across eligible programs within the timeframe of your trial.

If you want to keep learning, earn a certificate in relativity, or unlock full course access after the preview or trial, you can upgrade or apply for financial aid.‎

To learn relativity, start by identifying a structured course that aligns with your current knowledge level. Engage with the course materials, including lectures, readings, and problem sets. Supplement your learning with textbooks and online resources to deepen your understanding. Participate in discussion forums or study groups to clarify concepts and share insights. Regular practice with problem-solving will reinforce your knowledge and help you apply relativity principles effectively.‎

Typical topics covered in relativity courses include the postulates of special relativity, time dilation, length contraction, the equivalence principle, and the curvature of spacetime in general relativity. Courses may also explore applications of relativity in modern physics, such as black holes, gravitational waves, and cosmological models. Understanding these concepts is essential for grasping the implications of relativity in both theoretical and practical contexts.‎

For training and upskilling employees in relativity, courses like General Relativity I: Theoretical Foundations and General Relativity II: Applications are excellent choices. These courses provide a comprehensive understanding of relativity, suitable for professionals in physics, engineering, and technology sectors. They can enhance critical thinking and problem-solving skills, making them valuable for workforce development in scientific and technical fields.‎