Wednesday, March 18, 2020

Niels Bohr Institute

Niels Bohr Institute The Niels Bohr Institute at the University of Copenhagen is one of the most historically-significant physics research sites in the world. Throughout the early twentieth century, it was home to some of the most intensive thinking related to the development of quantum mechanics, which result in a revolutionary rethinking of how we understood the physical structure of matter and energy. Founding of the Institute In 1913, Danish theoretical physicist Niels Bohr developed his now-classic model of the atom. He was a graduate of Copenhagen University and became a professor there in 1916, when he pretty much instantly began lobbying to create a physics research institute at the University. In 1921, he was granted his wish, as the Institute for Theoretical Physics at the University of Copenhagen was founded with him as the director. It was often referenced with the short-hand name Copenhagen Institute, and youll still find it referenced as such in many books on physics today. The funding to create the Institute for Theoretical Physics largely came from the Carlsberg foundation, which is the charitable organization affiliated with the Carlsberg brewery. Over the course of Bohrs lifetime, the Carlsberg forked out well over a hundred grants to him in his lifetime (according to NobelPrize.org). Beginning in 1924, the Rockefeller Foundation also became a major contributor to the Institute. Developing Quantum Mechanics Bohrs model of the atom was one of the key components of conceptualizing the physical structure of matter within quantum mechanics, and so his Institute for Theoretical Physics became a gathering point for many of the physicists thinking most deeply about these evolving concepts. Bohr went out of his way to cultivate this, creating an international environment in which all researchers would feel welcomed to come to the Institute to assist in their research there. The major claim to fame of the Institute for Theoretical Physics was the work there in developing an understanding of how to interpret the mathematical relationships that were being demonstrated by the work in quantum mechanics. The main interpretation that came out of this work was so closely tied to Bohrs Institute that it became known as the Copenhagen interpretation of quantum mechanics, even well after it had become the default interpretation the world over. There have been a number of occasions where people directly affiliated with the Institute received Nobel Prizes, most notably: 1922 - Niels Bohr for his atomic model1943 - George de Hevesy for work in nuclear medicine1975 - Aage Bohr and Ben Mottelson for work in describing the structure of the atomic nucleus   At first glance, this might not seem particularly impressive for an institute that was at the center of understanding quantum mechanics. However, a number of other physicists from other institutes throughout the world built their research on the work from the Institute and then went on to receive Nobel Prizes of their own. Renaming the Institute The Institute for Theoretical Physics at the University of Copenhagen was officially renamed with the less-cumbersome name Niels Bohr Institute on October 7, 1965, the 80th anniversary of Niels Bohrs birth. Bohr himself had died in 1962. Merging the Institutes The University of Copenhagen of course taught more than quantum physics, and as a result had a number of physics-related institutes associated with the University. On January 1, 1993, the Niels Bohr Institute joined together with the Astronomical Observatory, the Orsted Laboratory, and The Geophysical Institute at the University of Copenhagen to form one large research institute across all of these diverse areas of physics research. The resulting organization retained the name Niels Bohr Institute. In 2005, the Niels Bohr Institute added the Dark Cosmology Centre (sometimes called DARK), which focuses on research into dark energy and dark matter, as well as other areas of astrophysics and cosmology. Honoring the Institute On December 3, 2013, the Niels Bohr Institute was recognized by being designated an official scientific historical site by the European Physical Society. As part of the award, they placed a plaque on the building with the following inscription: This is where the foundation of atomic physics and modern physics were created in a creative scientific environment inspired by Niels Bohr in the 1920s and 30s.

Monday, March 2, 2020

5 Things We Wish Wed Been Told When Starting College

5 Things We Wish Wed Been Told When Starting College 5 Things We Wish We’d Been Told When Starting College Starting college can be tough. You’ve got new ideas to wrestle with, new friends to make, and you have to get used to looking after yourself. Here are 5 things we wish someone had told us when we first started college. 1) Don’t Buy Books! You might have been told to go out and buy all the books on your reading list, but this isnt usually necessary. Any college library worth its salt will have plenty of the required books. Just make sure you get there before the other students snap them up! And if you get really stuck, you can always get cheap hand-me-downs from last years students. 2) Choose One Club It’s really easy to get sucked into signing up for 10 clubs in the first week at college. Sure, archery, salsa dancing, the Russian food club and white water rafting all sound great, but will you really have the time? Better to wait a few months before buying any expensive equipment to make sure you are really committed, rather than spending loads of money on a wetsuit and sailing shoes in your first week only to use them about four times. 3) Start Writing Your Papers Early It’s so tempting to put off writing a paper until a week before it is due. However, you’ll save yourself a lot of stress and time if you start writing as soon as the title is set. If you get into the habit now, you’ll be an expert when you get into your final year. 4) Save the Introduction until Last Another great writing tip is, once youve planned your paper, to skip writing the introduction until last. This will help you help you write a really strong opening, since youll have a much better sense of what the paper is about. 5) Take it Easy on the Drink College is a time for partying, sure, but you will find that relentless drinking will take its toll sooner than you think. There’s so much to get used to in your first year of college, so it’ll be a hell of a lot easier without a constant hangover! Try alternating alcoholic drinks with soft drinks and having a few alcohol-free nights a week. It’ll help you stay emotionally balanced and make life much easier!