Even biological organisms use electrical signals for control purposes

Smart phones are mobile networked communications devices with powerful onboard computers and cameras that allow a user to film, take pictures, talk to anyone anywhere in the world and text each other. They also have built in GPS antenna such that the user knows where they are on the planet.

In order to make a smartphone work, you will need a service plan, from a provider. A company that sells airtime on the radio network. You will also need a phone number that is unique to you. This is purchased via a SMI card. SIM stands for Subscriber Identification Module. The international version is a IMSI.

When you purchase a plan, the service provider will send you a SIM card, which you insert into your smartphone, or handset. Since, not all phones are smart.

We are concerned with devices that are likely to be used to control Jimmy Watson's DinoBot, and provide useful information to the giant robot, such as to allow the onboard artificial intelligence to self learn from the internet. To make this happen, Anthony needs his own SIM card, smartphone and number, with a suitable service plan.

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HOW DO MOBILE PHONES COMMUNICATE?

Mobile phones work by sending and receiving low powered radio waves.

The radio waves are sent to, and received from, a mast or aerial, called a mobile phone base station.

The base station passes the signal/call into the landline network or on to the mast nearest the mobile phone the call is being made to.

Each mobile phone base station covers an area known as a cell.

Cells are aligned next to each other in a similar pattern to a honeycomb, and it is for this reason that mobile phone networks are sometimes referred to as cellular networks.

The phone masts can act as repeater stations, passing the call from mobile phone A to mobile phone B.

Base station transmitters/receivers are often positioned high up, often on tall radio masts.

They cannot be spaced so far apart that hills, tall buildings or the curvature of the Earth stop the beam.

Microwaves are used to send signals to and from satellites.

The satellites can relay signals around the Earth.

Microwaves are used because they can pass through the Earth’s atmosphere and can travel through the vacuum of space.

The signals may be for television programmes, long distance telephone conversations, weather forecasting or spying.

Radio waves are not used to send signals to satellites as they are reflected by the Earth’s atmosphere and do not penetrate out into space and so would not reach the satellite.

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