Myanmar, Liberia, and the United States of America. Those are the only three countries left in the world that don’t use the metric system. Ted-Ed traces the history of the metric system (thank you French Revolution) to show how important it is to have one universal measurement system for the world, what can happen when conversions go wrong (NASA crashing an orbiter into Mars), and what the future of the metric system will be (basing it off universal constants like the speed of light).
Shooting stars may fill you with child-like wonder, but these celestial showstoppers are also reminders that Earth is hardly alone in space, and some of those cosmic objects can be downright dangerous.
You retire to an income-tax-free state and you don’t expect to pay any income tax. So imagine the surprise a former California couple in their 60s got when they went to a tax preparer in Tennessee for help with their 2015 federal tax return, and she gave them the news that they owed $1,200 in taxes to Tennessee on their capital gains, interest and dividend income, thanks to the 6% state “Hall Tax.”
Sport’s highest tribunal on Thursday rejectedRussia’s appeal against a doping ban for its entire athletics team from the Rio Olympics starting in 15 days’ time, drawing swift and angry condemnation from Moscow.