Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.
2015 • Health
Can emerging technology defeat global warming? The United States has invested tens of billions of dollars in clean energy projects as our leaders try to save our crumbling economy and our poisoned planet in one bold, green stroke. Are we finally on the brink of a green-energy "power surge," or is it all a case of too little, too late?
In the final episode of the series, Anita Rani investigates the tsunami of single-use plastic that parents pick up in the form of give-away toys. It turns out that McDonald's are the largest toy distributor in the world, handing out over 1.4 billion plastic toys per year worldwide. They claim on their website that they are recyclable, but a visit to Simon Ellin, the CEO of the Recycling Association, makes it very clear that while that may be true in theory, in reality it’s not that simple. Meanwhile, Hugh is in Scotland. He’s learnt that at the same time as the public are trying to reduce the amount of plastics in their lives, the plastics industry has big plans to increase plastic production by 50% before 2040. To find out more, he visits the INEOS factory in Grangemouth, owned by the richest man in Britain, where they produce a staggering 60-70 billion tiny plastic pellets every day.
Rented by the BP oil company to drill an oil well in the Gulf of Mexico, the Deepwater Horizon drilling rig explodes on April 20, 2010, before sinking into the ocean and causing a gigantic oil spill. At issue: negligence in the maintenance and in the tests carried out.