In recent years there's been a lot of hype surrounding blockchain and the system's applications — particularly as it applies to cryptocurrencies. But what, exactly, is blockchain? And how does it work?
One of the latest frontiers in the push for clean energy is the effort to capture the energy of human movement. The World's Clark Boyd reports on the development of a new paving tile that captures the energy of footsteps and turns it into electricity.
Conferences like the Fed retreat at Jackson Hole or Davos weren't always considered backdrops for major policy announcements. When did this change? And why? We're speaking with Matt Taibbi, contributing editor at Rolling Stone.
In his State of the Union Address, President Obama described the key role math and science education is going to play in the nation's future. For more, we're joined now by one of the nation's top science educators.
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