02/06/2012 Click

sail down the Thames. There is an interactive route map.

Wouldn't it be nice if someone was It you are always watching shadows,

this week, Click can help. We're looking at the technology designed

to keep you safe and let your family know what you are.

Taking a stroll through the corridors of power. We check out

the technology that captures wasted energy.

We are in Dallas to take a big view of TV.

All of that and the very latest tech news and the best of the word

in Webscape. -- the best of the Web. When it comes to your personal

safety, you can't be too careful. While our smartphones and other

portable devices can't do karate, they can allow our loved ones to

keep track of us. We have been finding out just how safe the

latest safety tech really is. Our phones can locate where we are,

take pictures, make alarm sounds and contact our friends and family.

The development of apps that makes these talents should in theory

provide the perfect security device. It will find way you are by

combining GPS phone networks and Wi-Fi locators, then the app can

communicate with your chosen contacts or a dedicated Monitoring

Centre in the event of an alarm being raised. BSafe's app has been

downloaded almost 100,000 times. If you sign up to a monitoring contact

at the start -- contract, it will contact your loved ones with your

location. The monitoring contracts are quite a cheap and simple,

starting at just a few pounds per month. PanicGuard is the first to

be approved by UK police. As well as providing tracking, emergency

contacts and is at Inst -- emergency contact Barden, it

triggers your phone's flash to shine bright and it will trigger

your phone's camera. But what if you can't raise the alarm yourself

in an emergency? StaySafe gets around this problem by expecting

you to check into the places you're meant to be. If you have not

checked in, your emergency contacts will be notified. As an employer,

we have an obligation to the safety of our workers and became up at

this as a solution to make sure we can follow them and make sure they

are OK while there are at work. Their reaction has been fantastic

because it demonstrates we are a caring employer who is looking out

for them. Some fear that employees could just feel they are being

watched for the wrong reasons. with your right restrictions and

oversight, they can be a valid way of ensuring safety, but there is a

huge potential for abuse and an employee could very easily feel

their employer is collecting information outside working hours,

that their employer does not trust them, or that they are being spied

upon. Some people will worry that their location details could be

hacked into. Despite the use of secure servers by these services.

Sometimes, we feel our most vulnerable at night. It is dark,

you don't know who was behind to, and flicking through your phone to

find the alarm button may not be a deal. He may prefer to have

something closer to hand. There is no shortage of hardware to keep

track their movements either. This bracelet will cost nearly 180 quid

but aims to look like a simple fashion accessory. It has a built

in panic button at debated by pulling at the bracelet and it

sinks while Leslie with your phone. -- while asleep. This key fob is a

GPS device that can track location and act as a panic button. When it

comes to be sure your kids are, brightly-coloured devices like this

watch offer dedicated extras like safe zones, areas your child should

stay with him, causing an alert should they go outside of them or

if the water is removed. While all these devices aim to be foolproof,

there is still the question of false alarms. One way to send your

friends and family into total panic or seemed like you're crying wolf.

Can a piece of tech be the best method of self-defence? If you're

worried about being attacked in the street, you could do with something

instead. On sounds on your phone are unlikely to reach the

aggressive tricks of some conventional personal safety alarms.

Nor spray anything in the face of the regressive. You need to think

about what happens when you press that button. As the person on the

other end Nate you are out? Do they know what to do when you press the

button? What happens if the lease back to power? What happens if you

are separated from your phone? The device is only tracking your phone

and not you. While some devices may make us feel safer, when it comes

to using apps, the one thing that should be protecting us is probably

the most valuable thing we have on A look at this week's tech news.

An anti-virus Burma once of what its expense -- suspects is an

orchestrated attacks by a nation state. Kaspersky Lab says that the

virus is one of the most complex threats ever discovered. It is told

the BBC that it believes that the malware which steals confidential

information has been active since 2010. The company thinks the tax

may have been state-sponsored but can't be sure. -- the attacks.

Samsung has admitted it is facing manufacturing issues are the people

-- blue models of the Galaxy S III. Customers are facing weeks of

delays. The company said the plume models require a new finishing

process that is taking longer to produce than first thought. All

variants of the smartphone were supposed to be in the shops in 28

European and Middle Eastern countries last month.

PayPal is bringing its online shopping business to the high

street. The company says its UK customers will be able to use an

apt to pay in selected shops. Customers will have to create a

PayPal account with a security pen for the app.

This track and these three cars have carried out the first test of

a convoy of self- driven vehicles on public roads in Europe. The

convoy completed the 200 km journey on a Spanish motorway using a

wireless standard developed for the calls and a number of Sciences

IndyCars. The cars themselves are being driven by software while the

truck had a human driver. They accelerated, brake and toned just

as the truck it. This project comes a few weeks after Google got a

mission in the US to test its autonomous, on public roads in

Nevada. -- autonomous car. Most tech has been shrinking but

TV's have gone the other way. It is not uncommon to see a 50 in TV

these days. In Dallas, they have something which would dwarf

anything you could imagine. This is the largest suspended HDTV

in the wild, and its home is the Cowboys stadium in Arlington Texas

outside of Dallas. It can hang as low as 25 feet and as high as 120

feet. With the screen, 108,000 fans can get up and put -- up close and

personal with the action happening down on the field. Each of the two

large screens are 40 yards wide. On the sides, there are two smaller 48

feet wide screens. This screen had to be built piece by piece with

four by six panels. They tried playing some 3D for the audiences

but their words are receptive. With a screen this big, I can see why 2D

If he used a laptop on your actual loud, you will know these things

can get pretty hot. They have a habit of running out of battery. At

the thought, he took his energy. Why it -- what if he could capture

the excess heat and use it to power a battery? That is the principle

behind an up and coming branch of tech innovation called Energy

Remember your schooldays? I have quite a lot of energy at this age.

Imagine if you could harness all that energy in something that was

used for? That is exactly what is happening to these children's

footsteps in this corridor. At this school in the Kentish countryside,

they are travelling a system of flexible paving slabs that collect

kinetic energy from each tart's footsteps, turning it into an

electrical charge used to light up a pulp. When the stand on the tile,

it flexes five millimetres in the centre. We convert that to

electrical power. Seven watts per footstep is created. The heavier

you are, the more energy is created. This installation is only four

tiles and has been set up to demonstrate the efficacy of the

system. It also shows how tough they are. We have a lower than

hundred students in the school. That is about as robust as you get.

If we put something like this in London Underground stations, that

would be very exciting. It is easy to see the potential. What more

corporations and public bodies needing to beat Green emissions

targets, it could play an important part in the sustainable energy mix.

One of the key sites we're working on it is at Westfield. This is the

largest ever shopping centre in Europe. We will see 40 million

people walking to this area of the Olympics. With that amount of

football -- would fall, we will be able to power a large proportion of

the lighting within the shopping centre. We weren't allowed to look

inside the system, such is the fierce competition in this sector.

Small companies are worried their ideas will be copied if they reveal

all. But kinetic energy is typically collected using an

electromagnetic system, which creates a coloured by moving a

magnet inside a Coyle. It is a process that has been widely used

in self- winding wrist watches for years. Other systems collect heat.

This land can power a radio. Or crystals that make electric

currents when under any kind of stress. And well and gas refinery

plant, we have many k am of pipework and these motors and pumps

fail. 1 One Wales, someone has developed a sensor which is powered

by vibration. When a change of sound occurs, that sense of squirts

out a signal to tell a base unit that this pub at this location

needs replacing. The motor industry is using self powered senses that

tore Wireless lead to the on-board computer. No wiring to add to the

weight of the car, improving efficiency. Energy harvesting is

sparking the imagination of inventors across the globe. Like

this Kenyan entrepreneur who wants to power your mobile phone with a

pad in the heel of your ship. Researchers at Cornell University

believe a tree with thousands of lapping leaves may one day replace

the when deter crime. Before we get carried away, a word of caution

from the organisation who would like to establish a Europe-wide

standard for measuring this technology. Many people would love

to see energy harvesting being used in consumer devices. The current

technology at the size and scale you need it to be at can't deliver

Watts of power. It is delivering 1,000 times less than is required.

A really good example of how energy harvesting can be used in a

consumer environment is to extend the life of batteries. Your mobile

phone will last three days between charges rather than one.

average person will walk 150 million steps in their lifetime. In

theory, using the slabs, that is enough to power the average family

home for three weeks. Imagine how many Christmas trees you could

Whether or not you get the point of Twitter, you cannot deny that it is

a force to be reckoned with. 140 million active users are tweaking

some 340 million comments every day. -- tweeting. That is the equivalent

of reading around 79,000 good novels. Who has time to keep up

with all of that chapter? You-know- who and she is coming up now with

Webscape. Here is Kate Russell. Instead of checking out my Twitter

timeline when I am supposed to be working, I found a better way to

keep up with it - the social Radio 4 Twitter app. Link it to your

account and then get on with your life. Soothing electronic voices do

all the hard work. -- The Social Radio 4 Twitter. The Act dials into

your Twitter feet at various intervals, reading anything that

came in since you last checked. But to turn it off -- but turn it off

before you go into any meetings or it could swing into life and reveal

more about 2G new plant. Yes, I am speaking from experience. -- more

about you than you planned. This has to be the autumn at multi-

tasking tool and will make you re- evaluate who you follow on Twitter.

-- the ultimate. It might shock you to learn that according to the

Environment Agency, one in six homes in England is at risk of

flooding. If you live in one of them, you is a Facebook app that

could help you stay ahead of the weather. Flood Alerts kelpie said

an area of interest. This could be your home or we'll grandparents

live and keep you informed of any flood warnings using live data

provided by the UK Environment Agency. It seems odd to be talking

about flooding when many parts of the UK have been in official

drought status. But heavy rain represents one of the biggest risks

of flooding because the hardened soil is not capable of draining

away the water during a sudden downpour. The app will not stop the

tide coming but forewarned is forearmed, as they say. Once it is

running, it will post any flood warnings on your wall which you can

share with the people you know, making you the modern-day hero. The

Act is built using technology that can be rolled out across the world

now, which could be a game changed her before the rainy season. -- the

app is built. The internet can be a busy place. Multiple e-mail

accounts, media and social screens -- streams, file transfer services,

the list goes on. Tracky is a new platform designed to cut through

the clatter of by providing a simple home for all of your e-mail,

chat and file sharing around a particular shared task of. The

people you invite to a task group will need to be registered with

Tracky and it is best you seek the permission before handing over

their e-mail address to a service that they may not want to join.

Nobody likes to be getting repeated e-mails reminding them to accept an

invitation they did not want in the first place. Link into your social

accounts led to push information out to them from within the Act, as

well as holding private conversations, sitting up tasks and

assigning responsibilities. -- app. A nice addition to the pockmarks of

anyone who likes to be organised. There are a couple of historic

events happening this week. On the fifth and sixth June, Venus will

pass in front of the Sun, visible from most parts of the world

through a solo shade. It will not be seen of her for a very hundred

years. -- seen again on her. Link mac is an explorer with a penis

trans bid simulator which will take knew when to expect these amazing

site where you are. There are links and advice about how to observe

this celestial spectacle safely. Talking of spectacles, the UK

celebrates the Queen's Diamond Jubilee this weekend. There will be

street parties and parades across the country and HistoryPin is

providing a lovely home for all of you Jubilee memories with a

dedicated channel where you are encouraged to upload photos, past

and present, in celebration of Elizabeth's 16-year reign. -- 60-

Thank you, Kate Russell. All of those links are up on the

website. The address you need is here on

screen. You can also quick to Click on the