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Solution: ‘A Drunkard’s Walk in Manhattan’
City blocks help illustrate why walking randomly tends to take you away from your starting point.
Colliding Black Holes Tell New Story of Stars
Just months after their discovery, gravitational waves coming from the mergers of black holes are shaking up astrophysics.
A Seeker of Dark Matter’s Hidden Light
The astrophysicist Tracy Slatyer is searching for faint wisps of dark matter annihilating in the early universe — and perhaps in hiding places closer to home.
The Strange Case of Typhoid Mary
The infamous case of Typhoid Mary underscores the importance of tolerance in understanding disease.
A New Way to Predict Infection’s Toll
Scientists have developed new ways to forecast who will bounce back from disease by studying not just the way the immune system fights infections, but how the body repairs itself.
A New Step in Re-Creating First Life on Earth
An RNA molecule that can make copies of a variety of RNAs adds new support to the RNA-world theory.
The Neuroscience Behind Bad Decisions
Irrationality may be a consequence of the brain’s ravenous energy needs.
Supersymmetry Bet Settled With Cognac
The absence of supersymmetry particles at the Large Hadron Collider has settled a 16-year-old bet among physicists.
A Drunkard’s Walk in Manhattan
Why is it that when you walk randomly, the more you walk, the farther you get from your starting point?