Niels Henrik David Bohr

February 24, 2009

Niels Bohr was born in Copenhagen on 7th October 1885 and Died on November 18 1962 in his home.
Niels Researched into atoms and radiation, for instance, he said that when an electron Jumps from an outer orbit into and inner one, it emits light. Other Physicists later expanded this into quantum mechanics. He won the Nobel Prize in 1922 “for his services in the investigation of the structure of atoms and of the radiation emanating from them”
. He also helped split the atom and advised the American scientists building the atomic bomb. He donated his Gold Nobel Prize Medal to the Finnish war effort. After the Second World War he established the Atoms for Peace convention and he helped found CERN (Europe’s particle accelerator and research station). He also made several theories, such as things may have a dual nature (Electrons being waves and particles) but that they can only be one of these things at once and the liquid drop theory which let people understand nuclear fission and in turn inspired the splitting of the atom. His Son Aage went on to be a physicist and also won the Nobel Prize in 1975 “for the discovery of the connection between collective motion and particle motion in atomic nuclei and the development of the theory of the structure of the atomic nucleus based on this connection”.
He expanded the theory put forward by Ernest Rutherford of the atom having a small dense Nucleus surrounded by a cloud of electrons. There were many problems with this theory, because classic physics said that the electrons of an atom should slowly lose energy and spiral towards the middle and thus cause the atom to collapse on itself. Niels solved this problem by saying that Electrons existed at various fixed energy levels, until the atom absorbed or lost energy. If an atom lost energy, the electrons would move closer to the nucleus. If the atom gained energy, the electrons would move further away from the nucleus. This would keep the atom “Balanced”.
He also proved that an atom would only emit radiation if it was in an “in-between” stage, i.e. an electron was moving from one energy level (distance from the Nucleus) to another. This also explained the lines observed in the spectrum of light emitted from an atom of hydrogen.
He created this theory (which was later proven to be correct) by looking at all the evidence and research other physicists had done over the past few years. All the Physicists liked the theory because it fit all the evidence that had been proven over time.
Niels Bohr proved that atoms were always stable and moved its electrons to a different distance from the nucleus when it did not have a stable amount of energy. He also proved that atoms only emitted radiation when the electrons were moving from an outer energy level to an inner level and visa versa.
He allowed physicists to accept the “shell” model of an atom that we still use today. If Niels had never had done what he did, we would probably still be using the plum pudding model because the Physicists believed there were to many problems with Rutherford’s model for it to be correct, yet the plum pudding model had only one problem. This problem was later realized to be too much of a problem and the Plum pudding model was no longer accepted.

Niels Bohr Biography -
Nobel Prize in physics in 1922-
Niels Bohr-
People and discoveries: Niels Bohr-
Niels Bohr-
Nobel Prize in physics 1975-


February 14, 2009



February 2, 2009

It’s funny.

What is?

No idea.

I really need to update my blog more often, but I haven’t been doing that because I’ve been lazy and I just started school again. yay.

anyways, I will upload some artworks I have done to soon if you want to check them out.

There is aproximately 30MB of images, which is a lot, so I will be putting them in a zip file. I will post here when I upload them.