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Radiation is a form of energy released in the form of rays, particles, or waves. It can be found all around us, from the sun and stars, to man-made sources like cell phones, computers, and nuclear power plants. Radiation can be both beneficial and harmful. It can be used to diagnose and treat illnesses and diseases, or it can cause long-term health problems such as cancer. On this page, you can find the latest news, articles, and videos about radiation and how it affects us.
A novel approach based on few-photon irradiation to achieve two-photon absorption (fpTPA) is proposed. For the first time, this enables the simultaneous realization of both high resolution and high efficiency in optical nanoprinting.
Eighty years have already elapsed since the launching of two nuclear bombs over the Japanese cities of Hiroshima and Nagasaki in August 1945, followed by the catastrophic accidents occurred in 1986 and 2011, respectively, at the nuclear plants of Chernobyl (Ukraine) and Fukushima (Japan).
An international team led by scientists from the Canadian Museum of Nature and the University of Chicago reconstructed the brain, heart, and fins of an extinct fish called Norselaspis glacialis from a tiny fossil the size of a fingernail and found evidence of change towards a fast-swimming, sensorily attuned lifestyle well before jaws and teeth were invented to better capture food.
Lemurs are among the best-known representatives of Madagascar's animal kingdom. They make up more than 15% of all primate species living today—even though the island covers less than 1% of Earth's land surface.