I test audio gear for a living — here's how to make a great home stereo system for under $500

Browsing HiFi sites can often make it feel like you need to spend thousands on a new system — but we've found a way to get great sound for a lot less.
The Cool Down on MSN

High school students create award-winning invention to solve major health crisis: 'We plan to create this into a real business'

While not everyone has the time or the technical know-how to invent a portable microplastic filter, there are simple steps ...