:00:04. > :00:14.sail down the Thames. There is an interactive route map.
:00:14. > :00:35.
:00:35. > :00:39.Wouldn't it be nice if someone was It you are always watching shadows,
:00:39. > :00:44.this week, Click can help. We're looking at the technology designed
:00:44. > :00:48.to keep you safe and let your family know what you are.
:00:48. > :00:52.Taking a stroll through the corridors of power. We check out
:00:52. > :00:56.the technology that captures wasted energy.
:00:56. > :01:00.We are in Dallas to take a big view of TV.
:01:00. > :01:08.All of that and the very latest tech news and the best of the word
:01:08. > :01:13.in Webscape. -- the best of the Web. When it comes to your personal
:01:13. > :01:19.safety, you can't be too careful. While our smartphones and other
:01:19. > :01:24.portable devices can't do karate, they can allow our loved ones to
:01:24. > :01:31.keep track of us. We have been finding out just how safe the
:01:31. > :01:38.latest safety tech really is. Our phones can locate where we are,
:01:38. > :01:41.take pictures, make alarm sounds and contact our friends and family.
:01:41. > :01:48.The development of apps that makes these talents should in theory
:01:48. > :01:55.provide the perfect security device. It will find way you are by
:01:55. > :01:59.combining GPS phone networks and Wi-Fi locators, then the app can
:01:59. > :02:07.communicate with your chosen contacts or a dedicated Monitoring
:02:07. > :02:11.Centre in the event of an alarm being raised. BSafe's app has been
:02:11. > :02:15.downloaded almost 100,000 times. If you sign up to a monitoring contact
:02:15. > :02:20.at the start -- contract, it will contact your loved ones with your
:02:20. > :02:26.location. The monitoring contracts are quite a cheap and simple,
:02:26. > :02:32.starting at just a few pounds per month. PanicGuard is the first to
:02:32. > :02:36.be approved by UK police. As well as providing tracking, emergency
:02:36. > :02:43.contacts and is at Inst -- emergency contact Barden, it
:02:43. > :02:47.triggers your phone's flash to shine bright and it will trigger
:02:47. > :02:54.your phone's camera. But what if you can't raise the alarm yourself
:02:54. > :02:58.in an emergency? StaySafe gets around this problem by expecting
:02:58. > :03:08.you to check into the places you're meant to be. If you have not
:03:08. > :03:09.
:03:09. > :03:14.checked in, your emergency contacts will be notified. As an employer,
:03:14. > :03:18.we have an obligation to the safety of our workers and became up at
:03:18. > :03:21.this as a solution to make sure we can follow them and make sure they
:03:21. > :03:25.are OK while there are at work. Their reaction has been fantastic
:03:25. > :03:29.because it demonstrates we are a caring employer who is looking out
:03:29. > :03:33.for them. Some fear that employees could just feel they are being
:03:33. > :03:38.watched for the wrong reasons. with your right restrictions and
:03:38. > :03:43.oversight, they can be a valid way of ensuring safety, but there is a
:03:43. > :03:46.huge potential for abuse and an employee could very easily feel
:03:46. > :03:50.their employer is collecting information outside working hours,
:03:50. > :03:57.that their employer does not trust them, or that they are being spied
:03:57. > :04:07.upon. Some people will worry that their location details could be
:04:07. > :04:11.hacked into. Despite the use of secure servers by these services.
:04:11. > :04:15.Sometimes, we feel our most vulnerable at night. It is dark,
:04:15. > :04:19.you don't know who was behind to, and flicking through your phone to
:04:19. > :04:23.find the alarm button may not be a deal. He may prefer to have
:04:23. > :04:29.something closer to hand. There is no shortage of hardware to keep
:04:29. > :04:33.track their movements either. This bracelet will cost nearly 180 quid
:04:33. > :04:37.but aims to look like a simple fashion accessory. It has a built
:04:37. > :04:45.in panic button at debated by pulling at the bracelet and it
:04:45. > :04:50.sinks while Leslie with your phone. -- while asleep. This key fob is a
:04:50. > :04:56.GPS device that can track location and act as a panic button. When it
:04:56. > :05:00.comes to be sure your kids are, brightly-coloured devices like this
:05:00. > :05:05.watch offer dedicated extras like safe zones, areas your child should
:05:05. > :05:13.stay with him, causing an alert should they go outside of them or
:05:13. > :05:18.if the water is removed. While all these devices aim to be foolproof,
:05:18. > :05:24.there is still the question of false alarms. One way to send your
:05:24. > :05:34.friends and family into total panic or seemed like you're crying wolf.
:05:34. > :05:37.Can a piece of tech be the best method of self-defence? If you're
:05:37. > :05:42.worried about being attacked in the street, you could do with something
:05:42. > :05:46.instead. On sounds on your phone are unlikely to reach the
:05:46. > :05:52.aggressive tricks of some conventional personal safety alarms.
:05:52. > :05:57.Nor spray anything in the face of the regressive. You need to think
:05:57. > :06:00.about what happens when you press that button. As the person on the
:06:00. > :06:05.other end Nate you are out? Do they know what to do when you press the
:06:05. > :06:09.button? What happens if the lease back to power? What happens if you
:06:09. > :06:15.are separated from your phone? The device is only tracking your phone
:06:15. > :06:19.and not you. While some devices may make us feel safer, when it comes
:06:19. > :06:29.to using apps, the one thing that should be protecting us is probably
:06:29. > :06:33.
:06:33. > :06:38.the most valuable thing we have on A look at this week's tech news.
:06:38. > :06:45.An anti-virus Burma once of what its expense -- suspects is an
:06:45. > :06:49.orchestrated attacks by a nation state. Kaspersky Lab says that the
:06:50. > :06:54.virus is one of the most complex threats ever discovered. It is told
:06:54. > :06:59.the BBC that it believes that the malware which steals confidential
:06:59. > :07:05.information has been active since 2010. The company thinks the tax
:07:05. > :07:09.may have been state-sponsored but can't be sure. -- the attacks.
:07:09. > :07:15.Samsung has admitted it is facing manufacturing issues are the people
:07:15. > :07:19.-- blue models of the Galaxy S III. Customers are facing weeks of
:07:19. > :07:25.delays. The company said the plume models require a new finishing
:07:25. > :07:31.process that is taking longer to produce than first thought. All
:07:31. > :07:34.variants of the smartphone were supposed to be in the shops in 28
:07:34. > :07:37.European and Middle Eastern countries last month.
:07:37. > :07:43.PayPal is bringing its online shopping business to the high
:07:43. > :07:47.street. The company says its UK customers will be able to use an
:07:47. > :07:51.apt to pay in selected shops. Customers will have to create a
:07:52. > :07:55.PayPal account with a security pen for the app.
:07:55. > :07:59.This track and these three cars have carried out the first test of
:07:59. > :08:06.a convoy of self- driven vehicles on public roads in Europe. The
:08:06. > :08:09.convoy completed the 200 km journey on a Spanish motorway using a
:08:09. > :08:18.wireless standard developed for the calls and a number of Sciences
:08:18. > :08:21.IndyCars. The cars themselves are being driven by software while the
:08:22. > :08:26.truck had a human driver. They accelerated, brake and toned just
:08:26. > :08:29.as the truck it. This project comes a few weeks after Google got a
:08:29. > :08:39.mission in the US to test its autonomous, on public roads in
:08:39. > :08:45.Nevada. -- autonomous car. Most tech has been shrinking but
:08:45. > :08:51.TV's have gone the other way. It is not uncommon to see a 50 in TV
:08:51. > :09:01.these days. In Dallas, they have something which would dwarf
:09:01. > :09:03.
:09:03. > :09:09.anything you could imagine. This is the largest suspended HDTV
:09:09. > :09:14.in the wild, and its home is the Cowboys stadium in Arlington Texas
:09:14. > :09:22.outside of Dallas. It can hang as low as 25 feet and as high as 120
:09:22. > :09:27.feet. With the screen, 108,000 fans can get up and put -- up close and
:09:27. > :09:32.personal with the action happening down on the field. Each of the two
:09:32. > :09:42.large screens are 40 yards wide. On the sides, there are two smaller 48
:09:42. > :09:51.feet wide screens. This screen had to be built piece by piece with
:09:51. > :09:56.four by six panels. They tried playing some 3D for the audiences
:09:56. > :10:06.but their words are receptive. With a screen this big, I can see why 2D
:10:06. > :10:17.
:10:17. > :10:24.If he used a laptop on your actual loud, you will know these things
:10:24. > :10:31.can get pretty hot. They have a habit of running out of battery. At
:10:31. > :10:35.the thought, he took his energy. Why it -- what if he could capture
:10:35. > :10:39.the excess heat and use it to power a battery? That is the principle
:10:39. > :10:49.behind an up and coming branch of tech innovation called Energy
:10:49. > :11:01.
:11:01. > :11:05.Remember your schooldays? I have quite a lot of energy at this age.
:11:05. > :11:08.Imagine if you could harness all that energy in something that was
:11:08. > :11:14.used for? That is exactly what is happening to these children's
:11:14. > :11:18.footsteps in this corridor. At this school in the Kentish countryside,
:11:18. > :11:23.they are travelling a system of flexible paving slabs that collect
:11:23. > :11:28.kinetic energy from each tart's footsteps, turning it into an
:11:28. > :11:34.electrical charge used to light up a pulp. When the stand on the tile,
:11:34. > :11:39.it flexes five millimetres in the centre. We convert that to
:11:39. > :11:45.electrical power. Seven watts per footstep is created. The heavier
:11:45. > :11:49.you are, the more energy is created. This installation is only four
:11:49. > :11:54.tiles and has been set up to demonstrate the efficacy of the
:11:54. > :12:00.system. It also shows how tough they are. We have a lower than
:12:00. > :12:04.hundred students in the school. That is about as robust as you get.
:12:04. > :12:10.If we put something like this in London Underground stations, that
:12:10. > :12:14.would be very exciting. It is easy to see the potential. What more
:12:14. > :12:20.corporations and public bodies needing to beat Green emissions
:12:20. > :12:26.targets, it could play an important part in the sustainable energy mix.
:12:26. > :12:30.One of the key sites we're working on it is at Westfield. This is the
:12:31. > :12:35.largest ever shopping centre in Europe. We will see 40 million
:12:35. > :12:38.people walking to this area of the Olympics. With that amount of
:12:38. > :12:42.football -- would fall, we will be able to power a large proportion of
:12:42. > :12:47.the lighting within the shopping centre. We weren't allowed to look
:12:47. > :12:50.inside the system, such is the fierce competition in this sector.
:12:50. > :12:54.Small companies are worried their ideas will be copied if they reveal
:12:54. > :12:58.all. But kinetic energy is typically collected using an
:12:58. > :13:03.electromagnetic system, which creates a coloured by moving a
:13:03. > :13:10.magnet inside a Coyle. It is a process that has been widely used
:13:10. > :13:15.in self- winding wrist watches for years. Other systems collect heat.
:13:15. > :13:22.This land can power a radio. Or crystals that make electric
:13:22. > :13:29.currents when under any kind of stress. And well and gas refinery
:13:29. > :13:37.plant, we have many k am of pipework and these motors and pumps
:13:37. > :13:47.fail. 1 One Wales, someone has developed a sensor which is powered
:13:47. > :13:49.
:13:49. > :13:55.by vibration. When a change of sound occurs, that sense of squirts
:13:55. > :14:03.out a signal to tell a base unit that this pub at this location
:14:03. > :14:08.needs replacing. The motor industry is using self powered senses that
:14:08. > :14:14.tore Wireless lead to the on-board computer. No wiring to add to the
:14:14. > :14:19.weight of the car, improving efficiency. Energy harvesting is
:14:19. > :14:23.sparking the imagination of inventors across the globe. Like
:14:23. > :14:27.this Kenyan entrepreneur who wants to power your mobile phone with a
:14:27. > :14:34.pad in the heel of your ship. Researchers at Cornell University
:14:35. > :14:41.believe a tree with thousands of lapping leaves may one day replace
:14:41. > :14:43.the when deter crime. Before we get carried away, a word of caution
:14:43. > :14:48.from the organisation who would like to establish a Europe-wide
:14:48. > :14:58.standard for measuring this technology. Many people would love
:14:58. > :15:02.to see energy harvesting being used in consumer devices. The current
:15:03. > :15:09.technology at the size and scale you need it to be at can't deliver
:15:09. > :15:14.Watts of power. It is delivering 1,000 times less than is required.
:15:14. > :15:18.A really good example of how energy harvesting can be used in a
:15:18. > :15:24.consumer environment is to extend the life of batteries. Your mobile
:15:24. > :15:29.phone will last three days between charges rather than one.
:15:29. > :15:33.average person will walk 150 million steps in their lifetime. In
:15:34. > :15:40.theory, using the slabs, that is enough to power the average family
:15:40. > :15:50.home for three weeks. Imagine how many Christmas trees you could
:15:50. > :15:52.
:15:52. > :15:59.Whether or not you get the point of Twitter, you cannot deny that it is
:15:59. > :16:04.a force to be reckoned with. 140 million active users are tweaking
:16:04. > :16:11.some 340 million comments every day. -- tweeting. That is the equivalent
:16:11. > :16:18.of reading around 79,000 good novels. Who has time to keep up
:16:18. > :16:23.with all of that chapter? You-know- who and she is coming up now with
:16:23. > :16:27.Webscape. Here is Kate Russell. Instead of checking out my Twitter
:16:27. > :16:33.timeline when I am supposed to be working, I found a better way to
:16:33. > :16:38.keep up with it - the social Radio 4 Twitter app. Link it to your
:16:38. > :16:48.account and then get on with your life. Soothing electronic voices do
:16:48. > :16:51.all the hard work. -- The Social Radio 4 Twitter. The Act dials into
:16:51. > :16:59.your Twitter feet at various intervals, reading anything that
:16:59. > :17:03.came in since you last checked. But to turn it off -- but turn it off
:17:03. > :17:10.before you go into any meetings or it could swing into life and reveal
:17:10. > :17:19.more about 2G new plant. Yes, I am speaking from experience. -- more
:17:19. > :17:25.about you than you planned. This has to be the autumn at multi-
:17:25. > :17:32.tasking tool and will make you re- evaluate who you follow on Twitter.
:17:32. > :17:36.-- the ultimate. It might shock you to learn that according to the
:17:36. > :17:44.Environment Agency, one in six homes in England is at risk of
:17:44. > :17:48.flooding. If you live in one of them, you is a Facebook app that
:17:48. > :17:52.could help you stay ahead of the weather. Flood Alerts kelpie said
:17:52. > :17:58.an area of interest. This could be your home or we'll grandparents
:17:58. > :18:03.live and keep you informed of any flood warnings using live data
:18:03. > :18:07.provided by the UK Environment Agency. It seems odd to be talking
:18:07. > :18:11.about flooding when many parts of the UK have been in official
:18:11. > :18:15.drought status. But heavy rain represents one of the biggest risks
:18:15. > :18:21.of flooding because the hardened soil is not capable of draining
:18:21. > :18:27.away the water during a sudden downpour. The app will not stop the
:18:27. > :18:31.tide coming but forewarned is forearmed, as they say. Once it is
:18:31. > :18:35.running, it will post any flood warnings on your wall which you can
:18:35. > :18:39.share with the people you know, making you the modern-day hero. The
:18:39. > :18:48.Act is built using technology that can be rolled out across the world
:18:48. > :18:54.now, which could be a game changed her before the rainy season. -- the
:18:54. > :18:58.app is built. The internet can be a busy place. Multiple e-mail
:18:58. > :19:03.accounts, media and social screens -- streams, file transfer services,
:19:03. > :19:07.the list goes on. Tracky is a new platform designed to cut through
:19:07. > :19:15.the clatter of by providing a simple home for all of your e-mail,
:19:15. > :19:20.chat and file sharing around a particular shared task of. The
:19:20. > :19:23.people you invite to a task group will need to be registered with
:19:23. > :19:27.Tracky and it is best you seek the permission before handing over
:19:27. > :19:32.their e-mail address to a service that they may not want to join.
:19:32. > :19:37.Nobody likes to be getting repeated e-mails reminding them to accept an
:19:37. > :19:41.invitation they did not want in the first place. Link into your social
:19:41. > :19:44.accounts led to push information out to them from within the Act, as
:19:44. > :19:50.well as holding private conversations, sitting up tasks and
:19:50. > :20:00.assigning responsibilities. -- app. A nice addition to the pockmarks of
:20:00. > :20:04.
:20:04. > :20:09.anyone who likes to be organised. There are a couple of historic
:20:09. > :20:14.events happening this week. On the fifth and sixth June, Venus will
:20:14. > :20:20.pass in front of the Sun, visible from most parts of the world
:20:21. > :20:30.through a solo shade. It will not be seen of her for a very hundred
:20:30. > :20:34.years. -- seen again on her. Link mac is an explorer with a penis
:20:34. > :20:42.trans bid simulator which will take knew when to expect these amazing
:20:42. > :20:52.site where you are. There are links and advice about how to observe
:20:52. > :21:01.
:21:01. > :21:08.this celestial spectacle safely. Talking of spectacles, the UK
:21:09. > :21:13.celebrates the Queen's Diamond Jubilee this weekend. There will be
:21:13. > :21:17.street parties and parades across the country and HistoryPin is
:21:17. > :21:21.providing a lovely home for all of you Jubilee memories with a
:21:21. > :21:31.dedicated channel where you are encouraged to upload photos, past
:21:31. > :21:31.
:21:31. > :21:41.and present, in celebration of Elizabeth's 16-year reign. -- 60-
:21:41. > :21:49.
:21:49. > :21:51.Thank you, Kate Russell. All of those links are up on the
:21:51. > :21:55.website. The address you need is here on
:21:55. > :21:57.screen. You can also quick to Click on the