This is the best explanatory video I have ever seen on the relationship between mass, energy, space and time. It explains time dilation, the ‘Twins Paradox’, why GPS satellites work and why Maxwell and Einstein were such clever clogs!
I started in medical lasers in 1986! I have been involved in clinical research, medical laser and IPL development, sales and marketing across Europe and South East Asia, business start-ups, theoretical research into laser-tissue interactions, training course development, writing articles for peer-reviewed journals and industry magazines. I am currently the Chairman of the Association of Laser Safety Professionals.
View all posts by Mike Murphy
