Time travel is one of the most fascinating ideas in science. The ability to go back, change events, or see the future sounds almost limitless. But the moment you actually think about it… things start ...

A team of researchers from the Okinawa Institute of Science and Technology (OIST) and the University of Turin, investigating how fast a fluid filled with particles mixes with a particle-free one, has ...

All the Latest Game Footage and Images from Problem Solved You can’t solve all your problems with a Uzi in third-person shooter El Paso, Elsewhere “Problem Solved, a coop adventure where you and your ...

Fermat’s Last Theorem is one of the most famous problems in mathematical history. Proposed in the 17th century, it claimed that certain equations have no solutions in whole numbers. For centuries, ...

In his State of the Union address on Feb. 24 — how long ago that seems — the president claimed that the problem of “affordability” was solved. He spoke too soon. Even before the strikes on Iran drove ...

Some readers may solve the problem procedurally: line up the two numbers, add the ones column, carry the one, and add the tens to get 43. Others might instead notice a creative shortcut: 29 + 14 is ...

When solving a puzzle, the answer could lie in your dreams. In a study of lucid dreamers, playing soundtracks linked with unsolved puzzles helped the sleepers solve the problems the next day, ...

A decade ago, when I became a stay-at-home dad, I was too busy sanitizing baby bottles and washing reusable diapers to read a short story, let alone an entire novel. Now I have a pair of night-owl ...

Each variable represents a specific influence in a person’s life. “X” refers to inheritance: family background, environment, and circumstances beyond individual control. The lowercase “i” represents ...

Q: I bought a GE refrigerator four years ago for more than $3,000. The freezer portion has failed five times because of a coolant leak that technicians can’t locate. Each repair costs more than $1,200 ...

The freezer compartment on Paris Perlick’s GE refrigerator keeps failing because of an elusive coolant leak. The manufacturer has tried to repair it five times over four years, but the problem ...