Dr Shane, Dr Jen, Dr Ray and Dr Catherine discuss ultrasound technology to treat Alzheimer's disease, how brain chemistry relates to empathy, quasicrystals in meteorites and the mars one project.

First guest: Dr Michelle Smith, School of Botany and Ecology, University of Maine, USA (via Skype call). Michelle discusses active learning techniques being tested to improve student engagement.

Second guest: Joe Micallef, Victorian State Manager of Engineering Australia, discusses the wonderful "SUBS in Schools Technology Challenge" program.

Third guest: Adam Taylor, Centre for Micro-Photonics, Swinburne University discusses how gold particles stability is under question due to their peculiar reshaping behaviour below melting points.

Program page: http://www.rrr.org.au/program/einstein-a-go-go/Facebook page: Einstein A Go GoTwitter: https://twitter.com/einstein_agogo