They pierce their noses.
the mobile communication is done only through Antennas.
Ham Nation - 2011 Mobile HF Antennas 2-56 was released on: USA: 20 July 2012
Most people currently have television that do not have antennas because it was required the you get a booster box to pick up certain channels. Howevere, they're are still people that do use antennas.
Xiaodong Chen has written: 'Antennas for global navigation satellite systems' -- subject(s): Global Positioning System, Space vehicles, Antennas (Electronics), Mobile communication systems, Radio antennas, Radio wave propagation
Zois Papadopoulos has written: 'Patch antennas for mobile satellite handhelds'
John M. Vanderau has written: 'Mobile antennas' -- subject(s): Standards, Antennas, Equipment and supplies, Radio, Law enforcement 'A technological rationale to use higher wireless frequencies' -- subject(s): Wireless communication systems, Radio frequency, Mobile communication systems
A transmit antenna sends radio energy from an electronic circuit into space. A receive antenna captures radio energy from space and connects it to an electronic circuit. Most people own several antennas, for example in transistor radios, mobile phones, keyfobs for locking the car, television satellite dishes or antennas on chimneys.
having exam
They communicate using antennas on their heads
No, mobile phones do not harm the ozone layer. The chemicals that were previously used in refrigerants, air conditioning systems, and aerosol products were found to harm the ozone layer, but not mobile phones. It is important to properly recycle electronics to prevent harmful chemicals from affecting the environment.
Mobile Phone has many harm things these are following With the mobile using students do not pay their attention to their studies they use facebook at the when they should be learn their lesson and concentrate to their studies. They pass their time in using internet and listening music and other things so in this way they waste their a lots of time. The other thing which is harm in phones is that mobile is also used in terrorism and the thief is also used mobile used when they used to stolen something from somewhere. This is the very bad news and harm things of mobile phone
The length of an antenna is based on what frequency it is designed to send or receive. The higher the freq. the shorter the antenna. For instance, cell phone antennas are very short while AM radio antennas are long. CB antennas are 18 feet long but there are many exceptions where people have tried to design shorter versions that will still work well.