1. Newsletter X 2023 - March 5th to 11th - News+ Dangerous toxins: Which products contain PFAS

    hit by the bomb. The conventional explosive detonated, destroying the playhouse and leaving a crater approximately 21 m wide and 11 m deep. Fortunately, the fissile atomic nucleus was stored elsewhere on the plane. All three girls were injured in the explosion, as were Walter, his wife Effie and his son Walter Jr. Seven nearby buildings were...

  2. Newsletter LI 2022 - December 20th to 25th - News+ One UN for all

    maximum 22 percent. But the efficiency can be increased by combining cells made of different semiconductors and with different absorption spectra... * Rutherford | Atomic nucleus 112 years ago today Ernest Rutherford discovered the atomic nucleus Through the famous gold foil experiment, the physicist came to an astonishing conclusion: almost the entire mass of the atoms...

  3. The uranium story

    Alpha decay of radium helium is created. * What is 'radioactivity'? Radioactivity (Latin radius 'ray' and activus 'active', 'effective'; German radiation activity) is the property of unstable atomic nuclei to spontaneously emit ionizing radiation. The nucleus transforms into another nucleus by emitting particles or changes its state by releasing energy. This...

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