Task 1
Electromagnetism is the study of the physical interaction that happens among electrically charged particles. This electromagnetic force is typically apparent in magnetic fields, electric fields and sources of light. This electromagnetic force that occurs between particles is one of the four ultimate interfaces in nature.
On April 8, 1911 in Leiden, Heike Kamerlingh Onnes discovered Superconductivity. Superconductivity is the phenomenon when a material cooled below a certain temperature emits no electromagnetic fields and has zero electrical resistance. With this discovery and electrical current can now persist indefinitely when flowing through a loop of superconducting wire.
On April 30th 1897 J.J. Thomson discovered the electron. He discovered this through his research on the properties of cathode rays. By measuring the amount of heat generated when the rays collided in a thermal junction and comparing this to the amount of magnetic deflection of the rays, he was able to estimate the mass of cathode. The results from his experiments advocated that the rays were over 1,000 times lighter than the hydrogen atom, and that their mass was the same from which ever type of atom they had originated. In the end, he found that the rays consisted of very light, negatively charged particles, which were the foundation of all atoms. These particles are known today as electrons.
In 1888 Heinrich Hertz built a device that produced and detected UHF radio waves. The device proved his theory of the existence of electromagnetic waves. During his research he also found depending on frequency that some waves could be transmitted through some materials and reflected by others, as in the xray. His discoveries concerning wavelength and frequency, led to many future innovations such as wave based wire telegraphy, radio, audio, and television to come later on.
In 1878 Thomas Edison invented an improved version of the incandescent light bulb. Although it wasn’t the first electric light
On April 8, 1911 in Leiden, Heike Kamerlingh Onnes discovered Superconductivity. Superconductivity is the phenomenon when a material cooled below a certain temperature emits no electromagnetic fields and has zero electrical resistance. With this discovery and electrical current can now persist indefinitely when flowing through a loop of superconducting wire.
On April 30th 1897 J.J. Thomson discovered the electron. He discovered this through his research on the properties of cathode rays. By measuring the amount of heat generated when the rays collided in a thermal junction and comparing this to the amount of magnetic deflection of the rays, he was able to estimate the mass of cathode. The results from his experiments advocated that the rays were over 1,000 times lighter than the hydrogen atom, and that their mass was the same from which ever type of atom they had originated. In the end, he found that the rays consisted of very light, negatively charged particles, which were the foundation of all atoms. These particles are known today as electrons.
In 1888 Heinrich Hertz built a device that produced and detected UHF radio waves. The device proved his theory of the existence of electromagnetic waves. During his research he also found depending on frequency that some waves could be transmitted through some materials and reflected by others, as in the xray. His discoveries concerning wavelength and frequency, led to many future innovations such as wave based wire telegraphy, radio, audio, and television to come later on.
In 1878 Thomas Edison invented an improved version of the incandescent light bulb. Although it wasn’t the first electric light