The University of Oxford-linked company's Machine 3 has now been fully commissioned
Look through about any school science textbook today and they are absolutely brimming with glossy illustrations. But, for some reason, older science books seemed to have a bit more "flair" than today. Unlike the illustrations of today's science textbooks which are all-too-perfect, but also all-too-dull, the 1950s-1970s delivered some impressively creative and often odd visuals.
Why is Disarmament Important?,Disarmament,Nuclear weapons,security,Military Industrial complex,United Nation,USA,Chia,Middle East,,Cold war, World War1 and 2
Would you agree that you are more than your physical body, that you also have mental, emotional AND spiritual/energetic bodies where each impacts on the other? That you are essentially an energetic being at the sub-atomic level, where there are
It's International Women’s Day, and while we don’t need an excuse to talk about the many awesome things achieved by women in science now and many decades ago, we’re certainly not going to let an opportunity like this go by without introducing...
The symbol of the element is represented by one letter that is written in capital or two letters ( the first letter is written in capital and the second one
Albert EinsteinOld Grove Rd.Nassau PointPeconic, Long IslandAugust 2nd, 1939F.D. Roosevelt,President of the United States,White HouseWashington, D.C.Sir:Some recent work by E. Fermi and L. Szilard, which has been communicated to me in manuscript, leads me to expect that the element uranium may be turned into a new and important source of…
Fusion power generation could be the future of clean, safe energy. Even a small reactor could provide enough power for large areas.
Creator: Briggs, C.A Subject: Meitner, Lise 1878-1968 Catholic University of America Type: Black-and-white photographs Date: 1946 Topic: Physics Women scientists Local number: SIA Acc. 90-105 [SIA2008-5996] Summary: In 1938, Austrian-born physicist Lise Meitner (1878-1968) fled Germany and eventually became a Swedish citizen. After World War II, Meitner received many awards, including being named "Woman of the Year" at the National Press Club in 1946. She was a Visiting Professor of Physics at Catholic University during Spring 1946. In a press release associated with her arrival, Dr. Meitner emphasized that her goal was "wholly educational": "I have no intention to suggest how atomic energy should be controlled, beyond expressing my sincere hope that no occasion will again arise where it will be utilized in war. A lasting peace is more desirable than the creation of weapons which might lead to the extermination of mankind." Cite as: Acc. 90-105 - Science Service, Records, 1920s-1970s, Smithsonian Institution Archives Persistent URL:http://siris-archives.si.edu/ipac20/ipac.jsp?&profile=all&source=~!siarchives&uri=full=3100001~!287596~!0#focus Repository:Smithsonian Institution Archives View more collections from the Smithsonian Institution.
The strong force binds quarks inside neutrons and protons, and holds atomic nuclei together.
See the guide for this topic. 7.1 – Discrete energy and radioactivity Discrete energy and discrete energy levels The electrons of an atom can occupy certain discrete atomic energy levels. As an ele…
School physics teaches us that everything is made up of atoms, and inside atoms are electrons, protons and neutrons. They, in turn, a...
categories:Cosmology | tags:Astrophysics, Cosmology, Magazine
In Angels & Demons, one-eighth of a gram of antimatter is stolen from Cern in Switzerland by terrorists intent on using it to blow up the Vatican. Could such a plan actually work? David Cox investigates
Unlike planets orbiting the Sun, electrons cannot be at any arbitrary distance from the nucleus; they can exist only in certain specific locations called allowed orbits. This property, first explained by Danish physicist Niels Bohr in 1913, is another result of quantum mechanics—specifically, the requirement that the angular momentum of an electron in orbit, like everything else in the quantum world, come in discrete bundles called quanta. In the Bohr atom electrons can be found only in allowed orbits, and these allowed orbits are at different energies. The orbits are analogous to a set of stairs in which the gravitational
Stable atoms have as many electrons as they do protons. How do these electrons orient themselves around the nucleus?
In 1913, two years after the first Solvay Conference on Physics, Bohr solved the problems with Rutherford's atomic theory and explained how spectral lines form.
Have you ever seen a strangely misshapen tomato growing in your vegetable garden? A uniquely pigmented plant in your backyard that’s just not like others, able to thrive even in the harshest of seasons? There’s a very good chance that it could be an atomic heirloom from a forgotten atomic garden of the 1950s and 60s. While…
An atom is composed of a nucleus containing neutrons and protons with electrons dispersed throughout the remaining space. Electrons, however, are not simply floating within the atom; instead, they are fixed within electronic orbitals. Electronic orbitals are regions within the atom in which electrons have the highest probability of being found.
