
Google often modifies its logo to reflect current events and celebrate anniversaries of well-known public and accomplishments. This post collects all the science- and tech-related anniversaries and events that Google celebrated with a special logo last year.
Many of these logos were only shown in one or a selected number of countries, so you have probably only seen a fraction of them.
(1834 – 1874) Self-taught German scientist and inventor. He built an early telephone, today referred to as the Reis Telephone, which he demonstrated in 1861. Thomas Edison based his work on the carbon microphone on Reis’s research, and has acknowledged Reis as the initially inventor of a telephone.

Shown on the Google homepage in Germany on January 7, 2009.
(1745 – 1818) Japanese surveyor and cartographer. He is well-known for completing the initially map of Japan done with modern surveying techniques. It was a huge task. He spent the last 17 years of his life mapping out the entire coastline of Japan and some of its interior, spending 3,737 days doing measurements.

Shown on the Google homepage in Japan on February 11, 2009.
(1809 – 1882) An English naturalist. He is of course most well-known for coming up with the theory of evolution and natural selection, published in his On the Origin of Species (1859).

Shown worldwide on the Google homepage on February 12, 2009.
The Unix operating systems represent date and time internally with a single number, and on February 13 at 23:31:30 UTC that number ticked over to 1234567890. This was celebrated by tech geeks around the Web, counting Google.

Shown worldwide on the Google homepage on February 14, 2009.
(1835 – 1910) Italian astronomer and science historian. He is most well-known for his studies of Mars, where he named the “seas” and “continents” of the planet, and the linear structures he called “canalis”, which means channels. Though, the word was mistranslated to “canals” (an artificial construction instead of something natural), inspiring widespread speculation in this area intelligent life on Mars.

Shown worldwide on the Google homepage on Development 14, 2009.
(1489 – 1588) Chief architect and civil engineer of the Ottoman Empire (now Turkey). During 50 years he was responsible for either supervising or constructing all the major buildings in the Ottoman Empire and has more than 300 major structures credited to his name.

Shown on the Google homepage in Turkey on April 15, 2009.
(1629 – 1695) Dutch mathematician, astronomer, physicist, horologist as well as an early writer of science fiction. He studied the rings of Saturn, learned Titan (one of Saturn’s moons), invented the pendulum clock, argued that light consists of waves, learned the centrifugal break down and numerous additional accomplishments, counting playing an vital role in the development of modern calculus. Huygens is sometimes called the initially theoretical physicist.

Shown on the Google homepage in the Netherlands on April 16, 2009.
(429 – 500) Chinese mathematician and astronomer. He pioneered a number of mathematical techniques that made it possible to construct very right calendars and additional astronomical calculations (for example he calculated the distance to Jupiter, correctly). He made a significant number of mathematical contributions, counting the closest approximation of Pi for over 900 years and a formula for finding the volume of a sphere.

Shown on the Google homepage in China on April 20, 2009.
(1862 – 1957) Japanese botanist. He is often referred to as the Father of Japanese Botany and was one of the initially to perform extensive classification of Japanese plants using the at the time new system produced by the Swedish Carl von Linné (Carl Linnaeus). He documented over 50,000 specimens. His birthday is called “Botany Day” in Japan.

Shown on the Google homepage in Japan on April 24, 2009.
(1791 – 1872) American painter that shortly in life became dedicated to develop a means of rapid long-distance communication after his wife had become sick and passed away while he was away from home. He co-developed the single-wire telegraph system and Morse code, which also bears his name.

Shown worldwide on the Google homepage on April 27, 2009.
The Royal Botanical Gardens in Kew consist of 121 hectares of gardens and botanical glasshouses southwest of London, England. They contain the world’s largest collection of living plants and employs more than 650 scientists and additional staff. Kew Gardens have more than 30,000 kinds of living plants and a herbarium with over seven million preserved plant specimens. It is a UNESCO World Heritage Site.

Shown on the Google homepage in the UK on May 5, 2009.
(1859 – 1906) Russian physicist. He was the initially to demonstrate the practical application of electromagnetic waves and continued the research performed by additional radio pioneers such as Heinrich Hertz, enabling long-distance radio communication with a radio receiver (and lightning detector) of his own creation.

Shown on the Google homepage in Russia, Ukraine and Belarus on May 7, 2009.
Learned in 1983 in Germany, the fossil of the Darwinius masillae that has affectionately been dubbed Ida has been dated as being 47 million years ancient. It’s the only one of its kind that has been found. On May 19, 2009, new findings were published that referred to Ida as “the missing link” in the primate lineage and human evolution.

Shown worldwide on the Google homepage on May 20, 2009.
(1933 – 1996) Chinese mathematician. He made significant contributions to number theory and is ranked as one of the leading mathematicians of the twentieth century.

Shown on the Google homepage in China on May 22, 2009.
The video game designed and plotted by Alexey Pazhitnov in 1984. Perhaps not quite as “sciency” as the additional selections we included here, but considering how iconic it was and how loved by tech geeks it is, we included it anyhow.

Shown on the Google homepage in selected countries on June 6, 2009.
(1856 – 1943) Serbian inventor and a mechanical and electrical engineer. Born in the Austrian Empire (now Croatia) he shortly migrated to the United States. He is one of the most well-known scientists in human history, known among additional things for his pioneering work with money-making electricity, electromagnetism, and numerous additional discoveries.

Shown worldwide on the Google homepage on July 10, 2009.
On the 40th anniversary of the 1969 Apollo 11 Moon landing, Google place up this nifty logo to celebrate the initially manned mission to land on the Moon.

Shown on the Google homepage in selected countries on July 20, 2009.
(1777 – 1851) Danish physicist and chemist. He is most well-known for learning that electric currents induce magnetic fields, a fundamental aspect of electromagnetism. He was also the initially to produce pure aluminium, a notable contribution to the field of chemistry.

Shown worldwide on the Google homepage on August 14, 2009.
Few have had a larger impact on the history of science than Galileo Galilei (1564 – 1642). He has been called the “father of modern observational astronomy,” the “father of science” and the “father of modern science”. He produced what is commonly known as the Galilean telescope, which allowed him to observe the heavens with up to 30 times magnification. Galileo spent the last part of his life in house arrest by the broad Church since the Inquisition had found him “vehemently suspect of heresy” after he had defended the heliocentric worldview in his work (that Earth and the planets revolve around the Sun, instead of everything revolving around Earth).

Shown worldwide on the Google homepage on August 25, 2009.
The initially use of bar codes was to mark railroad cars in the ‘60s. Though, they didn’t really become well loved until they started being used to automate supermarket checkout systems in the ‘70s. The original bar code design was inspired by Morse code, but with the lines and dots drawn out as bars.

Shown worldwide on the Google homepage on October 7, 2009.
On November 13, 2009, NASA reported that they had found traces of water on the Moon (often referred to as Lunar water).

Shown worldwide on the Google homepage on November 13, 2009.
(1911 – 2009) Chinese scientist. He made vital contributions to the missile and space programs of both China and the United States.

Shown on the Google homepage in China on December 11, 2009.
Learned and excavated in Mexico City in 1790, the large sculpture is a representation of the Aztec calendar. It measures in this area 3.6 meters (12 feet) in diameter and weighs 24 tons.

Shown on the Google homepage in Mexico on December 17, 2009.
(1787 – 1869) Czech anatomist and physiologist. He is most well-known for his discovery of Purkinje cells (named after guess who?) in 1837. They are large neurons with lots of branching dendrites found in the cerebellum of the human brain (and look pretty much like the Google logo not more than). He also introduced the scientific terms plasma (blood plasma) and protoplasm.

Shown on the Google homepage in the Czech Republic on December 18, 2009.
Overall, it seems that Google has really ramped up the number and variety of custom Google logos compared to previous years. These were just the ones in this area tech and science. You can find more over at Google’s Celebration Logos page, which is also where we found the metaphors for this article.
Further reading: If you found this post fascinating, you might want to check out 25 incredible public celebrated by Google.

From:
How Google celebrated science in 2009