Willem Einthoven

from Wikipedia

Willem Einthoven (21 May 1860 – 29 September 1927) was a Dutch doctor and physiologist. He invented the first practical electrocardiogram (ECG or EKG) in 1903 and received the Nobel Prize in Medicine in 1924 for it.

BackgroundWillem_Einthoven_ECG

Einthoven was born in Semarang on Java in the Dutch East Indies (now Indonesia), the son of Louise Marie Mathilde Caroline (de Vogel) and Jacob Einthoven. His father, a doctor, died when Einthoven was a child. His mother returned to the Netherlands with her children in 1870 and settled in Utrecht. His father was of Jewish and Dutch descent, and his mother’s ancestry was Dutch and Swiss. In 1885, Einthoven received a medical degree from the University of Utrecht. He became a professor at the University of Leiden in 1886.

In 1902, he became member of the Royal Netherlands Academy of Arts and Sciences.

He died in Leiden in the Netherlands and is buried in the graveyard of the Reformed Church at 6 Haarlemmerstraatweg in Oegstgeest.
Work

Continue reading “Willem Einthoven” »

What do you know about pneumonia?

Article taken from http://newsnetwork.mayoclinic.org/?s=pneumonia on September 22, 2016

By Dana Sparks written on September 12, 2016

Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills and difficulty breathing. A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia.

Causes

Many germs can cause pneumonia. The most common are bacteria and viruses in the air you breathe. Your body usually prevents these germs from infecting your lungs. But, sometimes, these germs can overpower your immune system — even if your health is generally good.

Pneumonia is classified according to the types of germs that cause it and where you got the infection.

Community-acquired pneumonia

Continue reading “What do you know about pneumonia?” »

Arthur Caplan: Voters barely worry about their own health. Do they really care about the president’s?

Taken from http://www.sltrib.com/opinion/4365058-155/arthur-caplan-voters-barely-worry-about on September 22, 2016

First Published Sep 17 2016 06:36AM      Last Updated Sep 17 2016 09:15 pm

The first of three planned presidential debates will take place at Hofstra University in Hempstead, N.Y., on Sept. 26. Maybe it’s good the debate is slated for a gym. If Hillary Clinton and Donald Trump are really serious about proving their physical vigor and stamina, they can do laps in the arena while they answer questions.

Clinton, of course, had to leave a 9/11 commemoration in New York early last Sunday, suffering from dehydration and a case of pneumonia. The infection had been diagnosed two days earlier, after she saw a doctor for a cough that had drawn intense interest from the ready-to-pounce conservative media. The only real health issue the illness raised is whether she had received the recommended vaccines to prevent pneumonia in people over 65 — something the 70-year-old Trump should be asked, as well.

Continue reading “Arthur Caplan: Voters barely worry about their own health. Do they really care about the president’s?” »

Einstein’s Riddle

 Can You Solve Einstein’s Riddle?

Taken from http://www.iflscience.com/editors-blog/solving-einsteins-riddle/

on September 22, 2016

The following riddle is claimed to have been written by Einstein as a boy. It’s also sometimes attributed to Lewis Carrol, although there’s no evidence that either of them actually wrote it. Either way, it’s fiendishly clever and is popularly called “Einstein’s riddle”. It’s rumored that only 2% of the world can solve it.

See if you can figure it out:

There are five houses in five different colors in a row. In each house lives a person with a different nationality. The five owners drink a certain type of beverage, smoke a certain brand of cigar and keep a certain pet. No owners have the same pet, smoke the same brand of cigar, or drink the same beverage. Other facts:

Continue reading “Einstein’s Riddle” »

Albert Einstein

Albert Einstein

Taken From Wikipedia, the free encyclopedia on September 22, 2016

Albert Einstein (/ˈnstn/;[4]German:[ˈalbɛɐ̯t ˈaɪnʃtaɪn]; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist. He developed the general 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 in popular culture 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”, in particular 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 to the development of his special theory of relativity. 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.

He was visiting the United States when Adolf Hitler came to power in 1933 and, being Jewish, did not go back to Germany, where he had been a professor at the Berlin Academy of Sciences. He settled in the U.S., becoming an American citizen in 1940. On the eve of World War II, he endorsed a letter to President Franklin D. Roosevelt alerting him to the potential development of “extremely powerful bombs of a new type” and recommending that the U.S. begin similar research. This eventually led to what would become the Manhattan Project. Einstein supported defending the Allied forces, but largely denounced the idea of using the newly discovered nuclear fission as a weapon. Later, with the British philosopher Bertrand Russell, Einstein signed the Russell–Einstein Manifesto, which highlighted the danger of nuclear weapons. Einstein was affiliated with the Institute for Advanced Study in Princeton, New Jersey, until his death in 1955.

Continue reading “Albert Einstein” »