A sundial in St. Mary’s Church of Krakow

Photography by Carlos Dorce

Photography by Carlos Dorce

This sundial is on the south wall of St. Mary’s Basilica of Krakow (also known as Church of Our Lady Assumed into Heaven).

Photography by Carlos Dorce

Photography by Carlos Dorce

This 14th-century chuch is famous because on every hour the Hejnal mariacki is played from the top of its highest tower. The song breaks doesn’t finish to commemorate the death of trumpeter who was shot in the throat while sounding the alarm before the Mongol attack on the city.

Location: St. Mary’s Church in Krakow (map)

Grace Hopper’s 108th Birthday

This doodle was published last year to commemorate  Grace Hopper’s 107th Birthday. Hopper (December 9, 1906 – January 1, 1992) was an American computer scientist who first developed the first compiler for a computer programming language. Her ideas led to development of COBOL programming language.

Source: Wikimedia Commons

She was buried in Arlington National Cemetery.

A plaque in the Cloth Hall in Krakow

Photography by Carlos Dorce

Photography by Carlos Dorce

In the ground floor of the Cloth Hall of Krakow there is this modern plaque (2007) designed by Czeslaw Dźwigaj and the selection of the text was made by Jerzy Wyrozumski and Alexander Kravchuk:

1257 Krakow city rights advocates by the German tradition and the situation of the market and the houses and affected courts

It was Bolesław V, “the Chaste One”, (1226–1279), Duke of Sandomierz in Lesser Poland from 1232 and High Duke of Poland from 1243 until his death, who introduced in 1257 the city rights modelled on the Magdeburg law allowing for tax benefits and new trade privileges for the citizens and this plaque was designed to conmemmorate the 750th anniversary of this moment.

The Cloth Hall is one of the most emblematic symbols of Krakow because is probably the oldest shopping mall in the World:

Source: Wikimedia Commons

It’s in the middle of the main square of Krakow and everybody visit it and buy something in the shops of the ground floor.

Photography by Carlos Dorce

Photography by Carlos Dorce

So next time that you visit Krakow look at the floor to this conmemorative plaque:

Location: The Cloth Hall in Krakow (map)

Mikhail Lomonosov’s doodle

Today is Lomonosov’s birthday.

This doodle was published by Google in Russia in the same date of 2011 celebrating his 300th birthday.

Source: Wikimedia Commons

Hua Luogeng’s 101st Birthday

This doodle was published in November 12, 2011 to celebrate Hua Luogeng’s 101st birthday.

Hua Luogeng (12 November 2011 – 12 June 1985) was a Chinese mathematician who became famous for his contributions to the Number Theory.

Source: Wikimedia Commons

You can read some information about him in the Doodle’s page:

Hua Luogeng was well known for two important contributions. One was his work on one of the greatest unsolved mathematical problems, known as Goldbach’s Conjecture…. and yes, it is a little trickier than 1+1, though it involves prime numbers! (We celebrated one of his students, Chen Jungrun, in a previous doodle, who made significant progress on this problem).

Luogeng was also known for his methodology on achieving efficiency, known as “Overall Coordination.” His analogy, taught to most schoolchildren, lays out the premise of wanting to drink tea when you don’t yet have boiled water. The most optimized approach is that you first rinse and fill the kettle and place it on the burner. Meanwhile, you should wash the serving teapot, the tea cups, and prepare the tea leaves. When the water has boiled, you can immediately brew your tea. That’s multi-tasking boiled down for you!

You can always learn something new!

Counting with Count Von Count

I know that this is not the correct place for a doodle dedicated to Count Von Count but five years ago this doodle was published to celebrate the 40th anniversary of Sesame Street. I watched it when I was a child I and I loved Count Von Count who taught children to count. Do you remembere it? There were thunders and lightnings after each number!

Edmond Halley’s doodle

Today is Edmond Halley’s birthday and this doodle was published in yhe United Kingdom in 2011 to celebrate his 355th birthday.

Source: Wikimedia Commons

Shakuntala Devi’s doodle

Shakuntala Devi (November 4, 1929 – April 21, 2013) was a mental calculator who travel around the World showing her arithmetic talent.

According to Wikipedia:

Examples of the problems presented to Devi included calculating the cube root of 61,629,875, and the seventh root of 170,859,375. […] Devi provided the solution to the aforementioned problems (395 and 15, respectively) before [prof. Arthur] Jensen could copy them down in his notebook.

In the 1982 Guinness Book of Records is mentioned that on June 18, 1980, she demonstrated the multiplication of two 13-digit numbers—7,686,369,774,870 × 2,465,099,745,779—picked at random by the Computer Department of Imperial College, London. She correctly answered 18,947,668,177,995,426,462,773,730 in 28 seconds.

Source: Wikimedia Commons

This doddle was published last year to commemorate Devi’s 84th birthday in a lot of countries of the World.

Finally will be the last?

Photography by Carlos Dorce

Photography by Carlos Dorce

We were coming back to our apartment and… another Copernicus! How many Copernicus are in Poland? This is made with 100 kg of chocolate and it must be the sweetest one. It was in the ancent Royal Pharmacy and current Cukierna Sowa:

The Royal Pharmacy

Here was the oldest pharmacy in Torun, established in the 14th century by Arnold, an apothecary from Wroclaw. In 1652 the pharmacy was granted the name “The Royal Pharmacy”. A figure of an eagle was placed over the door in the 18th century. From then on it has been called “The Pharmacy under the Eagle”.

It was a nice present before leaving Torun!

Photography by Carlos Dorce

Photography by Carlos Dorce

Location: Cukierna Sowa in Torun (map)

More Copernicus in Torun!

Photography by Carlos Dorce

Photography by Carlos Dorce

There is another monument of Copernicus in Torun designed by Wiktor Brodzki (1817-1904) in 1871. It is inside the Old Town Hall and you can see it in the main entrance of the museum housed there. So, enjoy it! One more monument for the collection!

Photography by Carlos Dorce

Photography by Carlos Dorce

Location: Old Town Hall in Torun (map)

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