How to Smell the Roses

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The part of the brain that processes smell is closely linked to the parts that process emotions and memory. Science doesn't understand what the building blocks of smell are. If you change one single chemical bond, a scent can shift from sweet to rancid. Maybe at some point if we're able to fix these issues then maybe one day users will be able to stop, swipe and smell the roses.

Italy’s longest-serving prime minister has died aged 86. He inspired as much derision as devotion, and for all his gaffes and scandals he helped to shape the country’s media—and its economic malaise. Unfettered by the abandoned nuclear deal, Iran is now making its bomb programme unassailable. And bringing the 20th-century idea of “Smell-o-vision” into the 21st.

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