Einstein's brain
On November 25th, 1915, Albert Einstein presented his general theory of relativity, which was published on December 2nd. To mark these dates, we are highlighting stories from The Economist's archive showing how the theory, and the man behind it, were received. Here, we meet someone obsessed with that man.
THE Japanese find nothing odd with obsessions, be they for autumn leaves in Kyoto or Mont Blanc pens. So it is not surprising to learn of the passion of Kenji Sugimoto, a professor of mathematics and history of science at Kinki University, in Higashi-Osaka. All his adult life he has amassed a collection of Albert Einstein memorabilia and now plans a museum for it. The centrepiece will be what Mr Sugimoto believes is a piece of Einstein's brain, which he tracked down last year. On April 1st. Mr Sugimoto's quest will be featured on "Arena", a BBC arts programme.
Discover more
Deforestation is costing Brazilian farmers millions
Without trees to circulate moisture, the land is getting hotter and drier
Robots can learn new actions faster thanks to AI techniques
They could soon show their moves in settings from car factories to care homes
Scientists are learning why ultra-processed foods are bad for you
A mystery is finally being solved
Scientific publishers are producing more papers than ever
Concerns about some of their business models are building
The two types of human laugh
One is caused by tickling; the other by everything else
Scientists are building a catalogue of every type of cell in our bodies
It has thus far shed light on everything from organ formation to the causes of inflammation