An old calculator uses a seven-segment display, in which numerals are represented by different patterns of vertical and horizontal line segments. But the device is faulty and no longer shows any ...

Specifically, the AI was able to make progress on a complex problem called the Andrews–Curtis conjecture, which has stumped ...

Test your knowledge about the human digestive system... from the mouth to the bum! Help Dr Chris, Dr Xand and Dr Ronx on their fantastic voyage.