The proof resolves a nearly 80-year-old problem known as the Duffin-Schaeffer conjecture. In doing so, it provides a final answer to a question that has preoccupied mathematicians since ancient times: ...

The National Weather Service provides a way to roughly calculate distance from a lightning strike. A bolt of lightning heats the air to about 50,000 degrees when it strikes. There’s no safe place ...

Which normal density curve best approximates the sample histogram? The answer suggested here is the normal curve that minimizes the integrated squared deviation between the histogram and the normal ...