Here's your chance to crack ciphers similar to those Bletchley Park's codebreakers faced during World War II. Below, we present three ciphers of different levels of difficulty, from easiest to ...

A little over a year ago we’d written about a sub $100 muon detector that MIT doctoral candidate [Spencer Axani] and a few others had put together. At the time there was little more than a paper ...

This was one of the most secure hand ciphers used in the Second World War. It was used by both the Allies and the Axis, and served both well. Its main weakness was that if the attacker intercepted ...

One of the best water leak detectors can help prevent this from happening by sensing temperature and water leaks, and alerting you if anything is wrong — before it becomes a major problem.

Learn more The best smoke detectors let you sleep easily knowing your home is being protected from fire and carbon monoxide by a reliable, audible alarm. As a residential carpenter, I've installed ...

In addition to smoke detectors, carbon monoxide (CO) detectors are essential for home safety. The best carbon monoxide detectors alert you when there's a potentially harmful concentration of this ...

Few cases have captured the public's imagination and baffled investigators quite like the Zodiac Killer. For decades, this unidentified serial murderer taunted law ...

When 16-year-old Sabrina cracks the cryptic Parallax, she’s recruited to track down a serial killer... who might not be from this world. Starring Anya Chalotra and Chance Perdomo. Show more When ...

There is valuable history buried in the ground, waiting to be discovered. If only there was a tool to tell us where it is… The best metal detectors will help you unearth old coins, jewellery, ...

Detectors cover the measurement of energies spanning from the very low to the highest energies observed in cosmic rays. Describing the instrumentation for experiments in high energy physics and ...

That’s why carbon monoxide detectors, which are relatively inexpensive and easy to install, are a recommended safety device in every home. Despite the ease of use and wide availability of these ...

“He’s a cipher, forever undercover.” “Slow Horses” has thus far offered only intimations of the trauma that turned Lamb into a personal wreck, while heightening his skill as a spy to ...