The internet may have to be re-weighed after European researchers completed their first proof that Einstein's theory of relativity is wrong.
Einstein's E=mc2 formula, which claims a direct relation between energy and mass, was used by a US professor to work out the weight of the electrons flying around the internet at any given moment.
His calculation of 50 grams is comparable to a strawberry or medium-sized egg, and he used the figure to work out how much heavier an Amazon Kindle e-reader is after loading books onto it.
However, an experiment proving it is possible to travel faster than the speed of light - something Einstein's theory claims is impossible - has passed a first round of validation, calling into question the foundation of the web weigh in.