W11Physics1CLec28Bfkw
... But because the photon also has wave properties, we can determine the electron position only within one wavelength of the photon, Dx=. Consequently, the position and the momentum of the electron cannot both be known precisely at the same time: DpxDx h. Apart from the numerical factor 1/4p , this ...
... But because the photon also has wave properties, we can determine the electron position only within one wavelength of the photon, Dx=. Consequently, the position and the momentum of the electron cannot both be known precisely at the same time: DpxDx h. Apart from the numerical factor 1/4p , this ...
Lesson 3.2 Defining the Atom
... • Almost all of the atom's positive charge and almost all of its mass is contained in a dense and positive region in the center of the atom called the nucleus. • Electrons are held within the atom by their attraction to the positively charged nucleus. ...
... • Almost all of the atom's positive charge and almost all of its mass is contained in a dense and positive region in the center of the atom called the nucleus. • Electrons are held within the atom by their attraction to the positively charged nucleus. ...
Lecture 11
... Everything we have discussed to this point will be part of the first mid-term exam (including reading assignments and homework.) ...
... Everything we have discussed to this point will be part of the first mid-term exam (including reading assignments and homework.) ...
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Compact Muon Solenoid
The Compact Muon Solenoid (CMS) experiment is one of two large general-purpose particle physics detectors built on the Large Hadron Collider (LHC) at CERN in Switzerland and France. The goal of CMS experiment is to investigate a wide range of physics, including the search for the Higgs boson, extra dimensions, and particles that could make up dark matter.CMS is 21.6 metres long, 15 metres in diameter, and weighs about 14,000 tonnes. Approximately 3,800 people, representing 199 scientific institutes and 43 countries, form the CMS collaboration who built and now operate the detector. It is located in an underground cavern at Cessy in France, just across the border from Geneva. In July 2012, along with ATLAS, CMS tentatively discovered the Higgs Boson.