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Polish Academy of Sciences expresses solidarity with Ukraine

All the expectations fell through, and diplomatic efforts have come to be replaced by brutal violence. The attack by the Russian Federation on the territory of Ukraine meets with opposition and the most far-reaching indignation on our part. Principles and commitments have been trampled, international law breached. This act of violence is deserving of resolute condemnation. We speak out against this aggression, we stand on the side of its victims, and we sympathize with sovereign Ukraine. The Polish Academy of Sciences shares the most far-reaching fears of the international community, at the same time retaining hope for the aggression to be halted and peace restored.

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Extremely rare observations of “tennis-like” vibrations of lead

The tennis ball deforms when it bounces off the strings of a racket. It flattens for a moment and elongates along the direction of motion. Traces of similar oscillations occurring in the 208Pb lead nuclei have recently been registered by scientists from the PAS Institute of Nuclear Physics. The only previous observation of a similar phenomenon is more than thirty years old.

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