13/09/2014 Newsround

It's Saturday, I'm Ricky, and here's what we've got coming

We'll show you the footy flood lights being powered by people.

Plus, Prince Harry gives wheelchair rugby a go at the Invictus games.

But first to a global effort to try and tackle litter.

Today, people all round the world are giving up their time

The "Let's Do It" campaign was launched in Estonia

in Eastern Europe, but has since spread to loads of other countries.

Thousands of people have volunteered to help out in their local area,

including this lot in the north west of England.

We have about 40 clean-ups taking place. We are hoping to bring down

as many people as possible, thousands, to stand together against

litter. I am disgusted with all the rubbish around, being thrown by

irresponsible beeping. It is very distressing, we have to come

together as a community to solve this problem. It is very inspiring,

if we can make this an annual event. Next, the question of whether people

power could be converted A UK company has just built

a high-tech footy pitch in one of Brazil's poorest slums that uses

the foot movement of players to turn They think it could just be

the beginning. The World Cup may well be over, but

Brazil is showing off a brand-new specially built playing surface in

the slums of Rio. This is the first player powered football pitch. The

more you run, the more energy is created to power the floodlights

that light up the pitch. The technology behind it all was

developed by a UK company, and these kids were the first to give it a

go. So, how does it work? These special tiles laid under the surface

turn the energy of movement into electricity. That, combined with

solar panels around the pitch, helps produce energy, enough to power the

floodlights overhead. However, it does not stop there. It is hoped the

technology can help to help fuel the future by storing the energy created

by us as we walk, not just playing football, but in shopping centres

and train stations, where there are lots of people. It can be used in

busy areas where there are people walking to power localised

lighting, safety lighting, football pitches, anywhere where there are

each points of people and it can go straight into the local grid as a

power source. It is hoped that developments like this in places

like Brazil can help showcase that their dreams are not limited to

footballing fame, but that science and technology is the future. And it

will remind children that there are two teas -- other opportunities for

people out there, not just football. It is an opportunity for the new

generation, for science, the kits can be more aware about this, there

is more opportunity. It is wonderful. The technology is new and

does not come cheap, but powering the football pitch is one small

example of what one day maybe a reality in towns and cities in

fuelling the future. Prince Harry might have thought up

the idea for the Invictus Games, but A sell-out crowd of more than 6,000

were left cheering in delight as he and a star-studded cast took part in

a special game of wheelchair rugby. It was the highlight

of the second day of the games, which are for wounded and injured

ex-servicemen and women. Former Olympic runner,

Dame Kelly Holmes, was one During practice, Prince Harry kept

barging into me and blocking me, and I was determined to get him back

today but I didn't get the chance. Everyone gave their best, but most

of all we enjoyed it. We were all incredibly honoured to be part of

it. It was an exciting experience. If dancing bears,

funny tongues and bats breaking into to TV studios are your kind

of thing, then don?t go anywhere! Yes, it's time to check out

the weirdest and most wonderful stories of the week with Strange,

Stranger, Strangest. You have probably heard of the

foxtrot, but how about the bear cub swivel? A couple of friends caught

this extraordinary moment was out playing golf in Western Canada. The

bear cub decided to put his dancing shoes on. This little fellow is

after a place on Strictly! You might think my job is difficult, but these

poor newsreaders got a shock during a live broadcast in America. A bat

gate-crashed this newsroom in Tennessee, sending the presenters

into a bit of a flap. They eventually managed to catch the bat

several hours later and released it into nearby woods.

Guinness world records celebrates its 60th anniversary this year, and

the newest setting record holders are as strange as ever. This cat set

the record for the longest jump for a cat by leaping over 1.8 metres.

But this next record left the use round off his tongue tied. This man

has the world's longest tongue. It is a whopping ten centimetres long.

That's all from me, but Newsround is back here tomorrow.

Check out the quiz of the week on the website in the meantime and