Electromagnet's "Birthday"

Hi guys..how's your revision?..hope u are doing well with your trial & SPM preparation..

If u notice today, google has displayed above image on top of its search engine. It looks like a wire coiled on a nail, which then connected to a battery. Hmm.. it seems like an electromagnet, isn it?
Then i checked & found out the image is meant to remind us on the birthday of a man named
Hans Christian Ørsted.
Who is he??? ..to know more about this mysterious guy,read this article if u wanna know abt some SPM tips:

While preparing for an evening lecture on 21 April 1820, Ørsted developed an experiment which provided evidence that surprised him. As he was setting up his materials, he noticed a compass needle deflected from magnetic north when the electric current from the battery he was using was switched on and off. This deflection convinced him that magnetic fields radiate from all sides of a wire carrying an electric current, just as light and heat do, and that it confirmed a direct relationship between electricity and magnetism. The first person to observe this phenomenon was actually Gian Domenico Romagnosi in 1802^[2]. Romagnosi's account of an electrostatic charge from a voltaic pile deflecting a magnetic needle, published in an Italian newspaper, was largely overlooked by the contemporary scientific community.

At the time of discovery, Ørsted did not suggest any satisfactory explanation of the phenomenon, nor did he try to represent the phenomenon in a mathematical framework. Three months later he began more intensive investigations. Soon thereafter he published his findings, proving that an electric current produces a magnetic field as it flows through a wire.

His findings resulted in intensive research throughout the scientific community in electromagnetism. The findings influenced French physicist André-Marie Ampère's developments of a single mathematical form to represent the magnetic forces between current-carrying conductors.

Well..i think he has contributed a lot in the world of physics. As a result, like it or not, u & i have to crack our brain while studying his discovery on electromagnet. I think electromagnet gonna be one of the favorate questions in SPM this year as well as in trial exam for KL student.So make sure u 've covered abt principle of electromagnet,induction,lenz law,faradays law & its experiment and its application like electric bell, motor,generator & etc.

By the way..to Mr Hans..just wanna wish uHappy Birthday wherever u are :) hehe