11/02/2016 Newsround


11/02/2016

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Hello - it's Ayshah here with Newsround on TV and online

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We've got the latest on a massive discovery by scientists

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Scientists have just announced that they've made an incredible discovery

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that will help us fully understand gravity.

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Because of the force of gravity if you drop something it falls down

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Now for around 100 years, scientists have had ideas about how

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gravity might change in space and create

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Now a US team has been able to prove that those theories are true.

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Black holes - the strangest objects in the universe.

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They don't have a surface like a planet or a star and can't be

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seen, but scientists know they're there because of the way they move

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Now a group of researchers watching them in space,

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think they've made one of the biggest discoveries

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In a galaxy far, far away, two black holes smashed together

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But it's only now that the shock waves have reached Earth.

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When you consider that these black holes actually spiralled out over a

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billion years ago and the signal has been travelling to us since then and

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we turned on our detectors at just the right time to detect arrive.

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This is a model of what the scientists actually found.

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First two black holes spin towards each other.

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As they get closer they give off waves of gravity,

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which is a force that attracts things towards each other.

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These waves get stronger and stronger until the black

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Professor Stephen Hawking is one of the world's most famous

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He says that the discovery is a special moment in the history

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Gravitational waves provide a completely new way of looking at the

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universe. The ability to detect them has the potential to revolutionise

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astronomy. By scanning the skies,

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astronomers can use these waves to find black holes,

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things that have been completely invisible

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to the telescopes until now. Scientists hope this will open up

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parts of the universe that they've Today we've been asking

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for your opinion on pocket money, It's all because new research has

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found that most of you get it Some people think that's a bad idea

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because pocket money can be a good way of helping kids learn

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important life skills. So we've been asking what you do

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to earn pocket money. Ayran from Watford says,

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"I play the guitar to earn my pocket money and I think it's wrong that

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people just get it free." Izzy who lives in Shrophire told us

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some of the things she does "I have to vacuum the house,

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do the dishes, empty Megan from Buntingford

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in Hertfordshire says, "I think

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we should work for pocket money, because otherwise it's just

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like we get a present every week." Now to a classroom

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with a difference. in Bradford in West Yorkshire have

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been taking part in a special experiment to help them

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keep fit and healthy. They're the first in

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Europe to try it out. Can you spot the difference

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in this classroom? Here in this class, it's

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all about...standing. It's part of an experiment to see

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if standing throughout the day, instead of sitting down,

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helps improve your health by keeping you more active,

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so how does it work? To go up, you push this

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lever and it goes up. To go down, you hold the lever

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and you push on the top of the desk. When you're standing up,

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you've got to put your chair to one side and then you put it

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to the right height by making an L-shape with your elbow

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and adjusting the height. The results of the tests so far have

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shown students spend less time What do these guys think

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of their standing desks? They are more relaxing

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than when we had the normal desks. They are really awesome

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because you can stand up or down on them so you don't have to just

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sit down all the time The stand-up sit-down desks

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are popular with this class and researchers hope

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to bring their idea to other schools Hayley will be here at

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7.40am tomorrow morning.

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