Ever wondered how vaccines work, why whales strand themselves or if luck exists? The Explainer: From Déjà Vu to Why the Sky Is Blue, and Other Conundrums is a collection of around 100 of the best articles published in ‘The Explainer’ and ‘Monday’s Medical Myths’ sections of The Conversation. The book answers questions on everyone's mind about a diverse range of topics, abstract concepts, and popular and hard core science. Sections include: animals and agriculture, body, climate and energy, me...