:00:20. > :00:25.It's Friday,you're with Newsround, and BBC One just got even better.
:00:25. > :00:31.Yep, you've got Leah and Ricky here tonight, dream-team material.
:00:31. > :00:34.Coming up, we meet the little girl making big waves. And calls for
:00:34. > :00:40.Hamilton and Button to pull out of the Grand Prix in Bahrain as the
:00:40. > :00:43.trouble increases. First to some good news in the fight against
:00:44. > :00:47.famine and drought in Africa. We've all got used to seeing these
:00:47. > :00:48.sorts of images over the years as the continent battles with the
:00:49. > :00:51.problems caused by a lack of fresh water.
:00:51. > :00:55.But today scientists have announced an exciting new discovery, as I've
:00:55. > :01:02.been finding out. The devastating effects of drought
:01:02. > :01:05.and famine, something we're all used to seeing in Africa. The lack
:01:05. > :01:10.of clean drinking water has been a problem there for decades, and it's
:01:10. > :01:14.still effecting tens of millions of lives. It's a particular problem
:01:14. > :01:17.right now for the central African country of Niger. The people there
:01:17. > :01:22.face severe famine, because they lacked the water to grow enough
:01:22. > :01:28.food. Water is vital to survival, and in many parts of Africa you
:01:28. > :01:32.can't just turn on the tap to get it. But it turns out there might be
:01:32. > :01:35.a solution deep under the ground. Up until recently, little was known
:01:35. > :01:39.about what lies beneath Africa's soil, but research led by British
:01:39. > :01:49.scientists has shown that there are huge water reservoirs underneath
:01:49. > :01:49.
:01:49. > :01:53.How work shows that there is potentially enough groundwater
:01:53. > :02:01.across Africa to support small- scale drinking water supplies for
:02:01. > :02:04.millions of people with careful exploration. The findings come on
:02:04. > :02:07.the same day the UN announced their global targets for supplying clean
:02:07. > :02:10.drinking water around the world are not being met. This could radically
:02:10. > :02:17.change all that. The question is how to get to the water to the
:02:17. > :02:21.places that need it most. Groundwater will be within 50
:02:21. > :02:26.metres of the surface, so it can be accessed by drilling down into the
:02:26. > :02:33.ground and fitting a hand pump on to the top of the bore holes, which
:02:33. > :02:36.people can pump themselves to bring water to the surface. The results
:02:36. > :02:39.of the study could potentially mean fresh drinking water for over 300
:02:39. > :02:41.million people, so that could mean a solution to one of Africa's
:02:41. > :02:44.biggest problems could lie just beneath their feet.
:02:44. > :02:47.Next to the latest from Bahrain, where there's been calls for top
:02:47. > :02:50.British drivers to pull out of this weekend's Formula One race. A group
:02:50. > :02:53.of UK politicians want the race to be cancelled because of continued
:02:53. > :02:55.violence in the country. Last night, there were tear-gas attacks on
:02:55. > :02:58.protestors angry at the way the country is run. The government
:02:58. > :03:06.there say everything will be OK. Here's what the racing drivers
:03:06. > :03:10.think. At the moment, it is business as normal, we are here to
:03:10. > :03:15.race, and I want to be part of it. It is difficult to answer, I'm here
:03:15. > :03:20.as a racing driver, not 18 spokesman. I think we are here for
:03:20. > :03:25.a reason, to race. We have a federation working to give safety
:03:25. > :03:28.for everybody. I trust them. Now to computers that can recognise
:03:28. > :03:31.our emotions. Scientists in America are working on the idea and, as Joe
:03:31. > :03:39.has been finding, they'll be putting the gadgets to very good
:03:39. > :03:42.Whether you are feeling excited, nervous, sad or happy, power and
:03:42. > :03:47.motions I really big part of being human, so imagine if your computer
:03:47. > :03:52.could work out what mood you are in. Scientists in America are trying to
:03:52. > :03:55.train computers to do just that. It is all done through looking at our
:03:55. > :03:58.faces and expressions changed depending on how we are feeling,
:03:58. > :04:07.and gradually the computer learns which expressions go with which
:04:07. > :04:13.Commotions. -- emotions. identifies the main points on your
:04:13. > :04:19.face, eyes, eyebrows and nose, and attracts how they move. When I
:04:19. > :04:23.smile, it goes up. When I shake my head, the pink line goes up.
:04:23. > :04:27.they muster this technology, it could lead to some exciting results.
:04:27. > :04:32.-- Master. People with conditions like autism have trouble working
:04:32. > :04:42.out what facial mannerisms mean, so the kit could help them out. It is
:04:42. > :04:46.
:04:46. > :04:50.not just your face that signed his It will be a while until a computer
:04:50. > :04:53.can really tell our emotions, but thanks to these high-tech
:04:53. > :05:02.developments, we should one day be able to tell the world how we are
:05:02. > :05:05.feeling by looking at the screen. Is this thing working? Come on!
:05:05. > :05:09.Something big has been happening in Liverpool today. Three puppets on a
:05:09. > :05:19.giant scale have been roaming the streets. It's all to mark 100 years
:05:19. > :05:28.
:05:28. > :05:37.since the Titanic sunk, and I was The story begins here in France,
:05:37. > :05:41.something magical has been taking shape inside this building. Actors,
:05:41. > :05:49.acrobats and inventors are putting together a production on a titanic
:05:49. > :05:59.scale. Inside the workshop, giant puppets have been created for a
:05:59. > :06:00.
:06:00. > :06:04.Meet the little giant. She has been brought all the way to Liverpool to
:06:04. > :06:09.star in a three-day events to mark the 100th anniversary of the
:06:10. > :06:13.Titanic disaster. The inspiration behind the production is a young
:06:13. > :06:19.girl from Liverpool wrote a letter to her father, who was on board the
:06:19. > :06:23.ship when it sank. Earlier today, the big crowds waited for the
:06:23. > :06:28.little giant. Finally, she has made her way into a heart of Liverpool.
:06:28. > :06:32.Thousands of people have turned up to see her. The puppet is about
:06:32. > :06:38.nine metres in height. She is made out of wood and operated by about
:06:38. > :06:43.30 people. It is quite an impressive sight. My mummy and
:06:43. > :06:49.daddy thought that I look like it. What did you think of the puppet?
:06:49. > :06:53.Yeah. These events will continue over the weekend. A quarter of a
:06:53. > :06:57.million people are expected to watch their inaction.
:06:57. > :07:01.That looks amazing. Now let us show you some of the world's newest
:07:01. > :07:04.gadgets before we go. They're on show at an exhibtion in Switzerland.
:07:05. > :07:11.Some of the gadgets on display include a robotic claw and a water
:07:11. > :07:15.wheel. But there was also a super low-tech hands-free umbrella. Well,