Tag Archives: Physics

Traffic Part II: Rules That Don’t Work

Traffic is all about rules. But which rules work, and which don’t? A smart planner will always be observing rules and seeing how they might work better. Lifts, for example, have never been optimized for how people organise themselves inside the lift. Buildings will often arrange lines for getting into a lift, but not for what… Read More »

How to Poison Someone on the Cheap

Intrigued and disturbed by reports that the former KGB officer Alexander Litvinenko may have been killed by radiation poisoning, I couldn’t help wondering how something like that was done? How easy would it be to get your hands on Polonium-210, the chemical element? Quite easy, it turns out. If you’re in the U.S., or have someone with… Read More »

Your Watch Is Ringing

Jiji Press of Japan is reporting (can’t find any link for this) that Seiko Instruments “has developed a prototype of a wristwatch that alerts the wearer to mobile phone calls.” The watch uses Bluetooth to monitor a cell phone and vibrates or sounds an alarm when a call comes in. Useful, I guess, if you… Read More »