Michiel 2005's photos with the keyword: museum boerhaave

Dates from 1745.

Einstein used this pen between 1912 and 1921, the period when he worked on the theory of Relativity. Then he gave the pen to Ehrenfest. Exhibition Einstein & Friends.

Lorentz sent the confirmation of the theory of Relativity as a result of the solar eclipse of May 29, 1919 to Einstein in Berlin. The telegram was partly sent by normal mail, probably as the result of the aftermath of the First World War. Exhibition Einstein & Friends.

Einstein and De Sitter corresponded about the consequences of Relativity on astronomy. Exhibition Einstein & Friends.

Einstein was guest professor at Leiden University from 1920 until 1946 (officially). He had to have a visum to stay in the Netherlands. Exhibition Einstein & Friends.

Exhibition Einstein & Friends.

Einstein applied for a job with professor Kamerlingh Onnes in 1901 and he included a reply card. Einstein got no answer. Exhibition Einstein & Friends.

From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

Later known as Halley's Comet. From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

This is the edition of Leiden University Library. From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

The Iron Lung was a medical apparatus for people who suffered from polio. Partial vacuum was used to draw air into the lungs, nowadays air pressure is used from pressurised containers. From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

Kamerlingh Onnes made helium into a liquid by cooling it close to 0 Kelvin. He used several pumps in series, using the same principle as the household fridge. From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

Made by Otto Brungels. Strasbourg 1539 From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

Made by Siemens & Halske It was the world second largest electromagnet. From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.

From their website: National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.