09/09/2011 Newsround

Good evening. You are tuned into Newsround with Leah and Ricky.

have everything from World Cups to psychic sheep on the show. That is

not all. Find out how it feels when your dad becomes a World Champion.

I'm like yes, he won! You won a gold medal!

Plus, David Walliams gets some extra support as he tries to swim

the length of the River Thames. before all of that, it is time for

bone-crunching tackles, thumping collisions and dazzling skills -

the Rugby World Cup has kicked off. Millions of people will be going

rugby crazy. Get ready for the haka, a

traditional war dance and New Zealand have been using it to

terrify their opponents for years. It did the job today. The All

Blacks thumping Tonga 41-10. They are favourites to win the whole

thing but they haven't lifted the tro -- trophy for 24 years. England

won it in 2003. Made it to the final in 2007, not world-class so

far this season, but should still make the semis. Wales have two very

tough group matches. They could pull off a big surprise. Scotland

will be desperate to beat England. They have reached the quarterfinals

at every World Cup. Ireland not looking good. They lost

four warm-up games before the tournament and need to find some

form fast. If you want to learn how to do the

haka, check out our picture guide on the Newsround website. If you

are not an expert on rugby, it is a good thing we caught up with

Lawrence Dallaglio for his handy guide.

The idea is to score tries. A try is worth five points. A try is

scored when one player puts the ball down with two hands over the

opposition line. After you have scored the try, you can get two

more points by kicking a conversion. Wherever the try has been scored,

you move backwards, put the ball down and you have a kicker who

kicks the ball between the two posts and gets an extra two points

so if you score a converted try, that is seven points to you. Often

you will see two teams come together in a scrum which is where

the eight forwards from one side collide with the eight forwards

from another side. The scrum happens when the ball gets knocked

forward and the put-in is given to the other team and it is a way of

restarting the game. The fly-half is the guy who does a lot of

kicking. He has the control. He is able to decide which way the ball

is going. It is a look-out for that number 10 shirt.

Of course, like with most World Cup competitions, there is often a

predicting animal knocking about. You will remember Paul the Octopus

from the Football World Cup. Rugby has its own psychic animal. Sonny

Wool the Sheep correctly predicted New Zealand would win today's match

by choosing to munch the hay under a New Zealand flag. Right. Moving

on. David Walliams has passed the half-way point on his mission to

swim the length of the River Thames. He is rid of that tummy bug that

was making him sick. He has got a great boost from these school kids

who cheered him on from the bank. He is due to reach Big Ben next

week. He spoke to Radio One's Chris Moyles. There was such a lovely

turn-out in Reading. I feel like I can see the end in sight. We have

still 70 miles to go. I have broken the back of it now. I'm half-way.

satellite is crashing towards Earth but don't panic - NASA says there

is little chance of it hitting anyone. That is good to know. There

are thousands of satellites circling the Earth. This one has

stopped working after 20 years in space. Most of it will burn up in

the atmosphere, but there is no way of knowing where the remains will

land. Experts say no-one has ever been hurt by falling space junk so

you probably don't need to strap on any protective headgear. If your

dad had become a World Champion, you will probably be quite proud.

So we thought we would get Mo Farah in. He became the first Brit ever

to win gold in the 5,000 metres. When he popped in, he brought along

his daughter. What is it like being the World

Champion? It feels awesome to hear that. I can't quite believe it. It

is amazing. I have heard a rumour when you were little you wanted to

be a footballer, is that right? 100%. At school, I wanted to play

football. That is all I wanted to do. If it wasn't for my PE teacher,

I wouldn't be in the sport. I'm excited about having the Olympics

on our doorsteps. I have to stay injury-free and keep training hard.

What does it take to be a World Champion? Is it hard work? It is

hard work. Being away from my family, my daughter and you have to

keep training and keep working hard. Your dad is World Champion. How

does that feel? He is cool. He is cool? He even wears his medals to

the dinner table! My mum's been bugging every night for three

nights and it is getting annoying so much. Daddy is the World

Champion. You know what, he is the World Champion! What is it like

when he has to go away from home. Do you miss him? I say when are we

going to see daddy. When he comes back with the gold... Yes, he won

one! You won a gold medal. Wooh! She is more excited than you are.

She saulz excited! Just quickly, I like cycling and I like sailing but

it is hard to do the two together. A teenager from Suffolk has helped

design a sailing bike. Ned wanted his two wheels to go a bit faster

so he stuck a mast on his bike. A company has been so impressed they