Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...
The solution to one of the Zodiac Killer’s cipher, unsolved for 51 years, was cracked by a team of citizen codebreakers earlier this month, with the FBI confirming the decoded message’s authenticity.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback