Blackboard magnets

Blackboard fridge magnets

Although we live in an era of PowerPoint, smartboards and digital projection, the traditional blackboard still retains an allure and usefulness for physicists that more advanced technologies can’t match.

The official CERN website is a good starting point for discovering more about CERN, particle physics, technology and education.

The CERN logo is made up of two components : 

The word "CERN", which is the acronym derived from the Organization's first official title : Conseil Européen pour la Recherche Nucléaire, or European Council for Nuclear Research. Today, our understanding of matter goes much deeper than the nucleus, and CERN's main area of research is particle physics. Because of this, the laboratory operated by CERN is often referred to as the European Laboratory for Particle Physics.

The interlaced rings, which are a simplified representation of the accelerator chain. The CERN’s current logo dates from 1968, when a decision was made to change the original one. Some 114 new designs were submited, many of which used CERN’s experiments as inspiration. The final design used the original lettering, surrounded by a schematic of a synchrotron, beam lines and particle tracks. Today’s logo is a simplified version of this.

Lagrangian of the Standard Model of particle physics

Lagrangian of the Standard Model of particle physics

This formula is the mathematical representation of the Standard Model of particle physics, the theory that describes the elementary particles and the forces that bind them together. The first line describes the forces: electricity, magnetism, the strong nuclear force and the weak nuclear force. The second line shows how these forces act on the elementary particles of matter. The last two lines describe the Higgs boson and the mechanism by which particles acquire their mass.

More about the Standard Model.
More about this formula.

	 The field of this magnet is 1000 times weaker that that of an LHC dipole magnet

The field of this magnet is 1000 times weaker than that of an LHC dipole magnet

All the magnets in the LHC are electromagnets. The main dipoles generate powerful 8.3 tesla magnetic fields – more than 100,000 times more powerful than the Earth’s magnetic field.

More about LHC magnets.

This fridge is 150 times hotter than an LHC dipole magnet

This fridge is 150 times hotter than an LHC dipole magnet

The Large Hadron Collider (LHC) is the largest cryogenic system in the world and one of the coldest places on Earth. All of the magnets in the LHC are electromagnets – magnets in which the magnetic field is produced by the flow of electric current. The LHC's main magnets operate at a temperature of 1.9 K (-271.3°C), colder than the 2.7 K (-270.5°C) of outer space.

More about cryogenics in the LHC

Standard Model Formula
Technical Specifications

Set of 4 magnets, 6cm wide x 3,8cm height each magnet.