Nothing but a G thing

Nothing but Relativity, Redux

A previous paper demonstrated that spacetime transformations consistent with the principle of relativity can be derived without assuming explicitly the constancy of the speed of light. Here we correct an error in the earlier paper while showing that this derivation can be done under weaker assumptions, in particular, without an implicit assumption of differentiability or even continuity for the...

Nothing but the truth

Everything gives you cancer, at least if you believe what you read in the news or see on TV. Fortunately, every thing also cures cancer, from red wine to silver nanoparticles. Of course the truth lies somewhere in between, and scientists might point out that these claims are at worst dangerous sensationalism and at best misjudged journalism. These kinds of media story, which inflate the risks a...

Nothing but Relativity

We deduce the most general space-time transformation laws consistent with the principle of relativity. Thus, our result contains the results of both Galilean and Einsteinian relativity. The velocity addition law comes as a bi-product of this analysis. We also argue why Galilean and Einsteinian versions are the only possible embodiments of the principle of relativity. Historically, Einstein’s sp...

Nothing But Tears

Nanotechnology: the next big thing, or much ado about nothing?

Nanotechnology encompasses an increasingly sophisticated ability to manipulate matter at the nanoscale, resulting in new materials, products and devices that demonstrate new and unusual behaviour. While emerging nanotechnologies have great potential for good, there are increasing concerns that the selfsame attributes that make them attractive will also lead to new risks to human health. Researc...