Making the World’s Largest Lemon Battery for a Lemon-Powered Car. Volkswagen's experimental car went on to win the Pikes Peak Hill Climb Record.

*

Why Sam Houston, Texas Hero, Opposed the Civil War. That opposition was the end of his amazing political career.

*

North America Will Not Be Able to See the Longest Lunar Eclipse of the Century, Sorry. Most of the world will see it on July 27.

*

'Cadillac Frank,' 'Ice Pick Willie,' And the Nicknames Of American Mobsters. They had some interesting origin stories.

*

The Board Game at the Heart of Viking Culture. Called hnefatafl, it was significantly more important than other games of the time.

*

How Chocolate is Made in Guatemala. See both an old, traditional method and a modern process.

*

How The NFL's New Helmet Rule Could Change Football As We Know It. If players can't use their helmets as weapons, where will the violence and injuries come from?

*

Researchers Recommend at Least 30 Minutes of Nature Time Per Week. If you can arrange for more, that's all the better.