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Use of Radioisotopes in Medicine
/ hospital, patient on table receiving radiation therapy for cancer, chest xray, doctors operating on mouth of patient.
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Safecast volunteers test shoes for radioactivity level
Safecast volunteers use geiger counters test for radiation in volunteer exclusion zone near Fukushima Daiichi nuclear plant.
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Young galaxies clearing the hydrogen fog from space in the early universe.
In the first billion years or so of the existence of the universe, the space was filled with an opaque fog of hydrogen, which interacted with the light emitted by young galaxies. Over time, radiation from the first generation of stars...
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Safecast personal radiation detector
Safecast personal radiation dectors detecting radiation levels in exclusion zone near Fukushima nuclear plant in Japan
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This animation shows a high-energy photon (blue coil) colliding with a free electron (red ball), which causes the release of a gamma-ray (purple flash)
This animation shows a high-energy photon (blue coil) colliding with a free electron (red ball), which causes the release of a gamma-ray (purple flash)
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Tilt down from prism to the split light beam it has generated. (sound available)
Tilt down from prism to the split light beam it has generated. (sound available)