La libertà di informazione in tempo di guerra – Eventi – Ansa.it

Eventi – In collaborazione con World Meeting on Human Fraternity La trasparenza e la libertà di informazione in tempo di guerra. Per sapere, per capire. La verità e la luce sui fatti come elemento indispensabile per disarmare le parole e disarmare il mondo. Se ne parla al tavolo sull’informazione alle…

The real reason ice is slippery, revealed after 200 years

For over a hundred years, schoolchildren around the world have learned that ice melts when pressure and friction are applied. When you step out onto an icy pavement in winter, you can slip up because of the pressure exerted by your body weight through the sole of your (still warm)…

Graphene just broke a fundamental law of physics

For several decades, a central puzzle in quantum physics has remained unsolved: Could electrons behave like a perfect, frictionless fluid with electrical properties described by a universal quantum number? This unique property of electrons has been extremely difficult to detect in any material so far because of the presence of…

Scientists capture elusive liquid carbon — a diamond in disguise

With the declared aim of measuring matter under extreme pressure, an international research collaboration headed by the University of Rostock and the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) used the high-performance laser DIPOLE 100-X at the European XFEL for the first time in 2023. With spectacular results: In this initial experiment they managed…

One daily habit could save you from chronic back pain

A major study has investigated the relationship between walking and the risk of developing chronic lower back problems. The findings could save the healthcare system significant amounts of money while also alleviating many people’s back pain – if we just follow the simple advice provided. The results are clear: People…

Toxic “forever chemicals” found in 95% of beers tested in the U.S.

Infamous for their environmental persistence and potential links to health conditions, per- and polyfluoroalkyl substances (PFAS), often called forever chemicals, are being discovered in unexpected places, including beer. Researchers publishing in ACS’ Environmental Science & Technology tested beers brewed in different areas around the U.S. for these substances. They found…

Tiny skaters beneath the arctic ice rewrite the limits of life

If you pull an ice core from the outer edges of the Arctic polar cap, you might spot what looks like a faint line of dirt. Those are diatoms – single-celled algae with outer walls made of glass. Their presence in ice isn’t new, but because they seemed trapped and…

NASA spacecraft detect a mysterious force shaping the solar wind

This illustration shows Earth’s magnetosphere interacting with the solar wind. The magnetosphere shields the Earth from harmful solar and cosmic radiation. Credit: NASA Goddard/CIL/Josh Masters A new study led by Southwest Research Institute’s Dr. Michael Starkey has provided observational evidence from the SwRI-led Magnetospheric Multiscale (MMS) Mission of pickup ions…

A doomed star system could soon shine as bright as the Moon

A greedy white dwarf star not far from Earth is devouring its closest celestial companion at a rate never seen before, space scientists have discovered. Their study found the double star, named V Sagittae, is burning unusually bright as the super-dense white dwarf is gorging on its larger twin in…

Black hole explosion could change everything we know about the Universe

Physicists have long believed that black holes explode at the end of their lives, and that such explosions happen — at most — only once every 100,000 years. But new research published in Physical Review Letters by physicists at the University of Massachusetts Amherst has found a more than 90%…