The Collatz Conjecture is defined by a rule simple enough for a child to follow. No matter what number you start with, the process always appears to end the same way — and it has never been observed ...

Nuclear physics is the study of the protons and neutrons at the centre of an atom and the interactions that hold them together in a space just a few femtometres (10-15 metres) across. Example nuclear ...

Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...

The mouth is often described as a window to overall health – and for good reason. A growing body of research reveals a significant link between poor dental hygiene and cardiovascular disease. While ...

Nuclear astrophysics is the study of nuclear-level processes that occur naturally in space. Notably, this includes understanding the chain of fusion events, or nucleosynthesis, that occurs in stars, ...

Although permanent teeth are meant to last a lifetime, there are a number of reasons why you may need to have a tooth pulled as an adult. Broken, infected, or overcrowded teeth can not only affect the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Katrina Ávila Munichiello is an experienced ...