“Dear listeners in faraway countries” — with these words from German President Theodor Heuss, Deutsche Welle began broadcasting on May 3, 1953. Germany’s foreign public radio station was charged with providing audiences abroad with a political, economic and cultural picture of the country. DW broadcast via shortwave and initially only in Germany.
The Safety Question, Pt.2TPM… of ionizing radiation: alpha particles [helium nucleus], beta particles [electrons], and gamma rays [short wave, high energy electromagnetic waves]). …and more »
Shahidul Haq Khan, a Bangladeshi health worker, and Tim Miner, an American with the World Health Organization, worked together on a smallpox eradication team in […]
Sammanfattning: We discuss various topics concerning the propagation, generation, and detec-tionof high-frequency (HF) radio waves in the Earth’s ionosphere. With re-gardsto propagation, we derive a […]