15x4 — Share Your Knowledge!
15х4 — это движение молодых учёных и фанатов науки.
Мы хотим, чтобы люди выступали и делились знаниями.
Radiation is often misunderstood and feared. However, it is naturally present and has many highly beneficial uses. Come and learn about one of these uses - radiotherapy, which helps many people to combat cancer.