Stamp collector known to decorate her dressing room with them

A young woman who collected stamps placed an advertisement or a notice (back in the day) in the Times of London in 1841 soliciting canceled postage stamps. Continue reading

James Watt

James Watt FRS FRSE (30 January 1736 (19 January 1736 OS) – 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen’s 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. Continue reading

City with more than 1 million inhabitants

London, England was the place, the census of 1811 showed that the city of London had a population of 1,009,546 at the time. Continue reading

Albert Einstein

Albert Einstein (/ˈaɪnstaɪn/; German: [ˈalbɛɐ̯t ˈaɪnʃtaɪn]; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist. He developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein’s work is also known for its influence on the philosophy of science. Einstein is best known by the general public for his mass–energy equivalence formula E = mc2 (which has been dubbed “the world’s most famous equation”). He received the 1921 Nobel Prize in Physics “for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect”, a pivotal step in the evolution of quantum theory.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led him to develop his special theory of relativity during his time at the Swiss Patent Office in Bern (1902–1909), Switzerland. He realized, however, that the principle of relativity could also be extended to gravitational fields, and with his subsequent theory of gravitation in 1916, he published a paper on general relativity. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the large-scale structure of the universe.

More at: Albert Einstein – Wikipedia

Albert Einstein

      Albert Einstein
      Theoretical Physicist
      March 14, 1879, Ulm, Germany
      April 18, 1955, Princeton, New Jersey, United States
      Elsa Einstein (m. 1919–1936), Mileva Marić (m. 1903–1919)
      Eduard Einstein, Lieserl Einstein, Hans Albert Einstein

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Imagination is more important than knowledge.

The important thing is not to stop questioning. Curiosity has its own reason for existing.

Anyone who has never made a mistake has never tried anything new.

Try not to become a man of success, but rather try to become a man of value.

Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.

Science without religion is lame, religion without science is blind.

No problem can be solved from the same level of consciousness that created it.

Everything should be made as simple as possible, but not simpler.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

I have no special talents. I am only passionately curious.

Additional Information:

The Guinea gold coins

First minted in 1663 in England, the coins were made of gold mined in what is now the Republic of Guinea (to which the name Guinea coins) in West Africa, were initially worth £1. Continue reading

Watt steam engine led directly to the motor vehicle

James Watt, a designer, built the Watt steam engine. Continue reading

Scientific proof of the general theory of relativity

Scientific proof of the general theory of relativity was obtained during the total eclipse of the sun in 1919. Continue reading

James Nasmyth

James Hall Nasmyth (sometimes spelled Naesmyth, Nasmith, or Nesmyth) (19 August 1808 – 7 May 1890) was a Scottish engineer, artist and inventor famous for his development of the steam hammer. Continue reading

Isambard Kingdom Brunel

Isambard Kingdom Brunel FRS (/ˈɪzəmˌbɑːd bruːˈnɛl/; 9 April 1806 – 15 September 1859), was an English mechanical and civil engineer who is considered “one of the most ingenious and prolific figures in engineering history”, “one of the 19th century engineering giants”, and “one of the greatest figures of the Industrial Revolution, [who] changed the face of the English landscape with his groundbreaking designs and ingenious constructions”. Continue reading

Anemometer for measuring air speed

Invented by English physicist Robert Hooke in 1644, his anemometer for measuring air speed device counted the turns of a horizontal bladed rotor exposed to the wind.
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