The Ultimate Pizza Quiz

Dmitri Mendeleyev presented his periodic table of elements at the Russian Chemical society on March 6, 1869. His table was based on increasing atomic weight. It was not, however, the first attempt at organizing the elements. In 1864, Lothar Meyer published a table with the placement of 28 elements.

Good news for the women out there. According to researchers, a mother’s genes determine the intelligence of a child. Scientists say that the cleverness gene is carried by the X chromosome. Smart ladies!

If you're thinking about learning a new language, here's a good reason you should go ahead with those plans: learning a language can help improve memory and slow down the process of aging! Sounds like a pretty good reason to start, right?