20/04/2012 Newsround

It's Friday,you're with Newsround, and BBC One just got even better.

Yep, you've got Leah and Ricky here tonight, dream-team material.

Coming up, we meet the little girl making big waves. And calls for

Hamilton and Button to pull out of the Grand Prix in Bahrain as the

trouble increases. First to some good news in the fight against

famine and drought in Africa. We've all got used to seeing these

sorts of images over the years as the continent battles with the

problems caused by a lack of fresh water.

But today scientists have announced an exciting new discovery, as I've

been finding out. The devastating effects of drought

and famine, something we're all used to seeing in Africa. The lack

of clean drinking water has been a problem there for decades, and it's

still effecting tens of millions of lives. It's a particular problem

right now for the central African country of Niger. The people there

face severe famine, because they lacked the water to grow enough

food. Water is vital to survival, and in many parts of Africa you

can't just turn on the tap to get it. But it turns out there might be

a solution deep under the ground. Up until recently, little was known

about what lies beneath Africa's soil, but research led by British

scientists has shown that there are huge water reservoirs underneath

How work shows that there is potentially enough groundwater

across Africa to support small- scale drinking water supplies for

millions of people with careful exploration. The findings come on

the same day the UN announced their global targets for supplying clean

drinking water around the world are not being met. This could radically

change all that. The question is how to get to the water to the

places that need it most. Groundwater will be within 50

metres of the surface, so it can be accessed by drilling down into the

ground and fitting a hand pump on to the top of the bore holes, which

people can pump themselves to bring water to the surface. The results

of the study could potentially mean fresh drinking water for over 300

million people, so that could mean a solution to one of Africa's

biggest problems could lie just beneath their feet.

Next to the latest from Bahrain, where there's been calls for top

British drivers to pull out of this weekend's Formula One race. A group

of UK politicians want the race to be cancelled because of continued

violence in the country. Last night, there were tear-gas attacks on

protestors angry at the way the country is run. The government

there say everything will be OK. Here's what the racing drivers

think. At the moment, it is business as normal, we are here to

race, and I want to be part of it. It is difficult to answer, I'm here

as a racing driver, not 18 spokesman. I think we are here for

a reason, to race. We have a federation working to give safety

for everybody. I trust them. Now to computers that can recognise

our emotions. Scientists in America are working on the idea and, as Joe

has been finding, they'll be putting the gadgets to very good

Whether you are feeling excited, nervous, sad or happy, power and

motions I really big part of being human, so imagine if your computer

could work out what mood you are in. Scientists in America are trying to

train computers to do just that. It is all done through looking at our

faces and expressions changed depending on how we are feeling,

and gradually the computer learns which expressions go with which

Commotions. -- emotions. identifies the main points on your

face, eyes, eyebrows and nose, and attracts how they move. When I

smile, it goes up. When I shake my head, the pink line goes up.

they muster this technology, it could lead to some exciting results.

-- Master. People with conditions like autism have trouble working

out what facial mannerisms mean, so the kit could help them out. It is

not just your face that signed his It will be a while until a computer

can really tell our emotions, but thanks to these high-tech

developments, we should one day be able to tell the world how we are

feeling by looking at the screen. Is this thing working? Come on!

Something big has been happening in Liverpool today. Three puppets on a

giant scale have been roaming the streets. It's all to mark 100 years

since the Titanic sunk, and I was The story begins here in France,

something magical has been taking shape inside this building. Actors,

acrobats and inventors are putting together a production on a titanic

scale. Inside the workshop, giant puppets have been created for a

Meet the little giant. She has been brought all the way to Liverpool to

star in a three-day events to mark the 100th anniversary of the

Titanic disaster. The inspiration behind the production is a young

girl from Liverpool wrote a letter to her father, who was on board the

ship when it sank. Earlier today, the big crowds waited for the

little giant. Finally, she has made her way into a heart of Liverpool.

Thousands of people have turned up to see her. The puppet is about

nine metres in height. She is made out of wood and operated by about

30 people. It is quite an impressive sight. My mummy and

daddy thought that I look like it. What did you think of the puppet?

Yeah. These events will continue over the weekend. A quarter of a

million people are expected to watch their inaction.

That looks amazing. Now let us show you some of the world's newest

gadgets before we go. They're on show at an exhibtion in Switzerland.

Some of the gadgets on display include a robotic claw and a water

wheel. But there was also a super low-tech hands-free umbrella. Well,