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[Plasma] – Temperature of solar flares helps understand nature of solar plasma 14 novembre 2023

The Sun’s rotation produces changes in its magnetic field, which flips completely every 11 years or so, triggering a phase of intense activity.

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[Innovation] – Codex International fully committed to « Lead free materials” 24 novembre 2022

The RoHS concept (Restriction of the use of certain Hazardous Substances) since 2006, requires that many electrical and electronic equipment must no longer contain a concentration by atomic weight of more than 0.1% of Pb, Me, Cr (hexavalent) etc…

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