What is an anti-siphon valve?
In houses with a built-in sprinkler system, anti-siphon valves prevent pesticides, pet waste, and other contaminants from polluting the home's water source. Check out this HowStuffWorks podcast to learn more about anti-siphon valves.
Fw:Thinking: The Internet of Things
In the future, the Internet of Things will impact our daily lives. Learn how the Internet of Things will work in this video from Fw:Thinking.
Fw:Thinking: The Future of Time
Defining time is a more complicated concept than it might seem. Learn about the future of time in this video from Fw:Thinking.
BrainStuff: Why Do Movie Theaters Sell Popcorn?
For millions of moviegoers, the idea of visiting the local theater automatically conjures memories of popcorn. But this wasn’t always the case – so why, out of all snacks, did popcorn become the #1 snack for film?
BrainStuff: What Is Satanism?
Just the term "satanism" is controversial. But what's actually going on with this counter-culture religion that values individualism and nonconformity?