Recently TV and radio personality Relebogile Mabotja went into anaphylactic shock after eating a salad that contained nuts. We take a closer look at allergies with pediatrician and allergologist, Dr Claudia Gray. In Unscience, we find out how a boiled egg can now be unboiled. Our scientist behind the science is Dr Siphephile Ncube, a PhD student from Wits School of Physics. She speaks about her recent work into the potential of carbon nanotubes for faster devices and magnetic memory applications.