Wednesday, February 18, 2015

Schools : Alessandro Volta's 270th birthday





Google Doodle : Alessandro Volta
Mark Holmer, doodler


Once again, Google surprises us. Today the Doodle honors Alessandro Volta, who invented an early form of the electric battery in 1799. 

Today February 18, Google Doodle pays tribute to the inventor of one of the most significant inventions till date. It celebrates the 270th birthday of the battery inventor Alessandro Volta.
A click on the doodle shows the battery charging and google lighting up simultaneously. Another click takes you to a Google search of Alessandro Volta's links about his life and works.


Alessandro Volta

Some biographical information:

Alessandro Giuseppe Antonio Anastasio Volta was the 18th century Italian physicist, natural philosopher, chemist and electrical pioneer who invented battery in the 1800s. 

Born in 1745 in the town of Como in what is now northern Italy, Volta was the son of a nobleman. He became a professor of physics in 1774 at Como’s Royal School before going on to work on the development of the “electrophorus”, a device that produced static electricity.



Volta’s invention consisted of discs of different metals, including copper and zinc, separated by cardboard that had been soaked in brine.

He was also the first person to isolate methane which further led to the discovery that methane mixed with air could be exploded with an electric spark.



Luigi Galvani

The turning point for Volta’s development of the battery was in 1780, when his friend Luigi Galvani discovered that contact of two different metals with the muscle of a frog resulted in the generation of an electric current.

Volta came to the conclusion that it was the liquid in the frog’s leg that was important rather than the frog itself. The same effect was achieved after he replaced the leg with paper soaked in brine. 

Volta began experimenting in 1794 with metals alone and found that animal tissue was not needed to produce a current.



Victorian posters

Within just weeks it inspired a wave of discoveries and inventions and ushered in a new age of electrical science.

In 1881, scientists decided that the unit of electric potential would be called the volt to recognize Volta’s great contributions to electrical science.




 Alessandro Volta
Mark Holmes, Google doodler

Apart from these inventions, Alessandro Volta was a natural philosopher quite a traveler and was a master of many languages. His proficiency in Latin, French, German and English helped him in travelling across the whole of Europe.



Alessandro Volta and Napoleon Bonaparte
1801, Epistolario di Alessandro Volta, Vol.III, 1951, BGUC

Just six years later, Volta invented the first electric battery, which he would go on to showcase at year later in front of Napoleon in Paris. The leader was so impressed that he made Volta a count and senator of the kingdom of Lombardy.

Later, the emperor of Austria made him director of the philosophical faculty at the University of Padua in 1815.


Alessandro Volta 
Line engraving by G. Bonatti after G. Garavaglia
credits: Wellcome Library, London. Wellcome Images

After being made a count in 1810 by Napoleon Bonaparte, Volta retired in 1819 
at the age of 74. He decided it was time to hang up his capacitors, his voltaic piles, his electrophorus, and his administrative work at the university.

Volta lived in Como until his death, aged 82, on March 5, 1827A museum was later built in his memory which displayed some of the experimental equipment.

Education:


Along the years, I introduced some interesting doodles of the day in curricula. It's a wonderful motivation and it can surprise your students to start a lesson or to reinforce a point that we are trying to make in class.

Doodles are the fun, and sometimes spontaneous changes that we can introduce in our lessons to teach about famous writersartspioneers, and scientists.

Reading Volta's biography, I realize once more how sciences and humanities go together. We can be good in both, i'ts a matter of natural curiiosity and learning.



Activities:

Here some activities that I think might involve your students. Of course you are free to propose your own ideas:

  • Organize an open day (today or/and nex week) in our schools with our students to highlight the importance of science for the world development;
  • Ask your students to visit the World Library of Science onlineThe World Library of Science is a free online resource for a global community. You will find a complete information and resources.
  • Open discussions in the classroom to enphazise  the many different ways science & technologies touch our daily lives;
  • Contact school newspaper coordinator to highilight the importance of celebrating Volta in science;
  • Ask yoour students to write articles, news, or create comics, in the classroom about the importance of science for sustainable societies and include the best works in the school newspaper;
  • Build classroom-to-classroom connections between schools via the Internet:  schools websites, schools accounts on Facebook, Twitter, Google + to share science projects that will interest students;
  • Arrange a Science Museum visit. Museums are awesome practical lessons.

Levels: All levels (different activities for different ages and grades): Primary, Secondary, Vocational education.

Curriculum : Sciences ; Cross-curricular Languages ; Sciences ; Technologies.

Some curiosity?




In the honor of his works, Alessandro Volta's image was depicted on the Italian 10,000 lira note (no longer in circulation) with a sketch of his voltaic pile. 



Doodle graphic design
Mark Holmer, doodler

Mark Holmer, Google new doodler (his 2nd doodle) explains the Doodle process after a research on Volta and images of his inventions, until he came to the last version of Volta's doodle. 
An interesting reading for students, not only in Design curriculum.

Why not mention how the electric battery as we know it today, is crucial to our everyday lives as mobile phones demand great things from tiny devices, continue to push the technology forward.

“What is it possible to do well, in physics particularly, if things are not reduced to degrees and measures?”

Alessandro Volta

G-Souto

18.02.2015
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