Recent content by Lena01

Tapatalk is primarily designed to provide improved forum access for mobile platforms over access provided by the forum software itself. The application was originally designed for Android but now also supports iOS and Windows Phone. Tapatalk allows the user to have a unified interface to access...

Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.[n 1] When radio waves strike an electrical conductor...

hi all, my name is Lena)) I am a new member here )) thanks for your post , nice to meet you all here, in this web site