Why is This Church Steeple in a Lake?

Anyone visiting Lake Reschen in South Tyrol will quickly find themselves marvelling at the church spire rising up out of the water. It is all that remains of the village of Graun. In the 1950s, an Italian electricity company built a reservoir for a hydroelectric power plant to generate electricity. The valley surrounding Graun was flooded and the residents of the village were forced to move. Today, barely any trace of Graun remains – just the 14th-century bell tower of the parish church St Katharina.

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Can You Knit a Heart?

Using a super-elastic metal known as nitinol and a traditional Bolivian knitting technique, cardiologist Franz Freudenthal has developed a hand-stitched patch to close a hole in the heart. Nitinol, a nickel-titanium alloy, reacts to temperature fluctuations by changing its shape. The cooled patch is folded and grafted into place using a catheter. Once it warms up to  body temperature, it recovers its original shape and then blocks the hole in the heart.

The Deepest Hole in the World	Weird Discoveries Can't Explain	Interest Facts About Neptune
What is the Darkest Material	Interesting Facts About Mars	Stars Put Sun to Shame
Amazing Facts About Sun	Interesting Facts About Sun	Science Facts Didn't Learn
Science Facts No Longer Taught	Recent Science Discoveries	Ridiculous Science Myths
Most Dangerous Plants	Uncontacted Tribes Still Exist	Is Freezing Contagious
Can an Animal Clone Itself	How Much Google Cost	What Are Tree Bombers
Brief History of Alcohol	How Alcohol Make Drunk	Facts About Recycling
Most Danngerous Weapons	Most Mysterious Lakes	Equation Changed the World

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How Do Spiders Spin the First Web?

Unlike Spider-Man, a spider is not able to ‘shoot’ its threads through the air. So how does the arachnid manage to spin the first threads of its web? “Spiders let a thin thread go, which is then picked up by the wind and sticks wherever it lands,” explains spider researcher Bernhard Huber. Using this method, arachnids like the Darwin’s bark spider can build a web up to seven metres wide to make a bridging line across a river. However, the spider can’t choose which way these anchoring threads blow. “If no suitable anchoring point is found, the spider gives up and tries somewhere else,” says Huber. But if the thread sticks, it hangs from it and replaces the thin thread with a thick, silky version. This is the base frame for the spider’s web.

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Is There a Secret Ocean Under the Earth?

As John McNeill steps into his lab at the University of Alberta, little does he know that he is about to discover a hidden ocean. He’s been handed samples collected near a diamond mine in Brazil. Now one of them, a tiny diamond weighing just 0.09g, lies under his spectroscope and what he’s about to see takes McNeill’s breath away.

Hidden in the gemstone is ringwoodite, a mineral formed under great pressure. Where? In the cosmos or deep in the Earth. Analysis shows that 1.4% of the mineral comprises molecules of water. With this discovery, experts can prove that a giant ocean exists 700km beneath North America. Scientists now believe that large quantities of the world’s water began life deep inside the Earth.

Geologist Steve Jacobsen speaks of 4.2 billion cubic kilometres of water under North America alone – more than three times the volume of all the world’s oceans. Were these water masses to rain down on Earth, only the highest mountains in the world would still be visible above the super oceans created.

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How Much Does a Failed Rocket Launch Cost

On 28th October 2014, an Antares rocket exploded on the launch platform on Wallops Island on the east coast of the USA. The explosion at the Mid-Atlantic Regional Spaceport was so powerful that pressure waves knocked onlookers off their feet up to fi ve kilometres away. Constructed by space firm Orbital Sciences, the transporter was loaded with just over two tons of food, technology and mini-satellites bound for the International Space Station. In an effort to save the launch platform, technicians deployed the flight termination system in the rocket’s engine – but to no avail. It was too late. The damage to the destroyed Antares rocket system has been put at US$200 million – not including associated costs such as contract delays and termination fees of around US$100 million. As for repairing the launch platform itself? Well, that’ll cost a cool US$13 million.

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