Radios first came about in the 19th century, when people discovered that electromagnetic waves could spread through space. Although there were many discoveries and inventors leading up to the radio that we have today, some big names are probably more recognizable than others. Nicola Tesla, Thomas Edison and Heinrich Rudolf Hertz were all to thank for this invention. Guglielmo Marconi may not be so familiar, but he was the one who built the commercial wireless telegraphy system in 1894 and is due most of the credit of the development of today’s radio. He used Hertzian waves to produce a useful communication system that could transmit signals up to 2 miles. He later won the Nobel Prize in Physics and is celebrated as the inventor to commercialize radio.
In recent years, the Australian school system has seen a drop in the number of students taking Math and Science subjects. Those who did, also chose easier versions in order to get good grades. Many universities do not put these subjects as prerequisites and therefore, students were entering fields like Engineering without even having to take basic levels of Math and Science in high school.