Assuming that noboby will help me,
Black Ice + Bicycle Cracked Skull
A smoke detector works on little particles completeing he circuit, medical treatments usually use gamma radiation is used in industry to find leaks or cracks in materials in biology, radiation is used as a tracer to follow pathways, this process is also used in industry in medicine tracers are used too to check arteries or kidneys or thyroid, etc Also in biology radioactive elements are used to track reactions.Consider-where does the oxygen come from in glucose? the CO2 or the H2O. By using a radioactive isotope they can tag one and follow it to find the answer many naturally occurring radioactive isotopes are t times beta emitters and at other times alpha synthetic elements are created by bombarding an element with a particle and it sticks in the nucleus
