LHC

For many things, when you have to prove something or when you are debating, you need a good argument or good evidence for make understand to the other what is your position or what you are saying is the true. And science isn't an exception, in this area are usually used the scientific method, that consist in make an observation, then think "Why that happen?" and make an hypothesis, with this in mind, you can predicate what is going to happen and make an experiment that confirm it, for this step is common use many materials and instruments, describing all you used, making observations of how act the real world, comparing if it matches with your initial idea. If doesn't accord your observation with your hypothesis, you'd refine or reject your hypothesis, then try it again, until you experiment explain in a good way the hypothesis. If you reach this point, congrats! Other scientist can replicated your experiment for confirms the hypothesis or adjust it for what are the looking for.

The Large Hadron Collider (LHC)

The Large Hadron Collider (LHC) is a large instrument that was build by the CERN beneath the France-Switzerland border. This instrument is usually use to know what happen near the Big-bang explosion and prove the Standard Model , accelerating subatomic particles near to the speed of light and making it crush with other particle in opposite way. This experiment help to emerge new species of heavy particles. And, thank to this, it has been discovered the Higgs boson, an elementary particle in the Standard Model of particle physics.
The technology that is used in this machine is the most sophisticated in the area, having a good number of engineers and scientists on it.

From itself, don't have a use that normal person can do with it, but scientist can answer some questions like: Are the masses of elementary particles actually generated by the Higgs mechanism via electroweak symmetry breaking? Is supersymmetry, an extension of the Standard Model and Poincaré symmetry, realized in nature, implying that all known particles have supersymmetric partners? Are there extra dimensions, as predicted by various models based on string theory, and can we detect them? What is the nature of the dark matter that appears to account for 27% of the mass-energy of the universe?
For me, know this questions, sounds very interesting, although I don't know so much about the matter, all that I got, is from wikipedia, some other pages of what does consist, and some videos of the Standard Model.
Some bad things about is that this experiments at the Large Hadron Collider sparked fears that the particle collisions might produce doomsday phenomena, involving the production of stable microscopic black holes or the creation of hypothetical particles called strangelets. Two CERN-commissioned safety reviews examined these concerns and concluded that the experiments at the LHC present no danger and that there is no reason for concern, a conclusion expressly endorsed by the American Physical Society.