Physic learning usually requires more observation to form certain knowledge and concepts. does not only consist of a collection various or facts that can be memorized, but also consists an active process using the mind in studying natural phenomena cannot explained. Physics subject is one keys success increasing ability adapt change enter world technology. Therefore, ways are needed convey mate...

Department of Food Chemistry and Nutrition, School of Medicine, The Jagiellonian University, 9 Medyczna Street, 30-688 Kraków, Poland Department of Medicinal Chemistry and Natural Products, School of Pharmacy, The Hebrew University, Hadassah Medical School, Jerusalem 91120, Israel Henryk Niewodniczański Institute of Nuclear Physic, Department of Nuclear Physical Chemistry, 152 Radzikowskiego St...

In this work we review the status of tree-level vacuum stability in general two-Higgs doublet models. We also discuss the problem of Normal minima in some classes of potentials. In some of these potentials, Normal minima can coexist leading to potentially dangerous physic scenarios as, for instance, a two step spontaneous symmetry breaking.

High power targets are one of the major issues in an accelerator complex for future HEP physic studies. The paper will review status of studies worldwide. It will focus on the status of the MERIT mercury-jet target experiment at CERN.