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Hace 4 días · Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay.
27 de abr. de 2024 · There are two distinct ranges in energy of UHECR. Cosmic rays with \(E\gtrsim 10^{20}\) eV may be created by stellar processes by acceleration of stellar material in catastrophic processes. The cosmic rays with such energies naturally contain a large amount of nuclei.
16 de abr. de 2024 · Radiation can be ionizing or nonionizing radiation, and only ionizing radiation has enough energy to potentially cause damage to cells and DNA. Sources of radiation include natural phenomena like cosmic rays and radioactive elements, as well as human-produced sources such as X-ray machines and nuclear power plants.
24 de abr. de 2024 · The main objective is to examine the longitudinal aging trajectories of aging clocks across the replicative lifespan to senescence of primary human cells from healthy and premature aging syndromes in cosmic silence.
Hace 2 días · This difference in mass arises due to the difference in nuclear binding energy between the atomic nuclei before and after the reaction. Nuclear fusion is the process that powers active or main-sequence stars and other high-magnitude stars, where large amounts of energy are released.
27 de abr. de 2024 · In the most common form of gamma decay, known as gamma emission, gamma rays (photons, or packets of electromagnetic energy, of extremely short wavelength) are radiated. Gamma decay also includes two other electromagnetic processes, internal conversion and internal pair production.
Hace 2 días · Nov. 23, 2023 — In 1991, an experiment detected the highest-energy cosmic ray ever observed. Later dubbed the Oh-My-God particle, the cosmic ray’s energy shocked astrophysicists. Nothing in...
