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Strange 'spacetime crystals' could give birth to tiny black holes

Strange 'spacetime crystals' could give birth to tiny black holes "Sometimes a tiny, seemingly insignificant cause is enough to trigger a huge and dramatic change." When we think about a black hole, we probably picture some vast cosmic titan, greedily consuming any matter unfortunate enough to fall within its gravitational influence. Thinking deeper, we probably imagine this ravenous cosmic beast forming from the explosive collapse of the core of a massive star.

Space.com 12h ago

Tabletop experiment helps reconcile fundamental physics

Tabletop experiment helps reconcile fundamental physics Gaby Clark Scientific Editor Andrew Zinin Lead Editor Assistant Professor Haocun Yu is something of a scientific diplomat. In a recent Physical Review Letters publication, she and her colleagues show how a tabletop experiment can bring together two bedrock physics theories that have never been fully reconciled. More than a century ago, Albert Einstein gave us the theory of general relativity, describing gravity in relation to space and...

Phys.org 2d ago

Wounds may trigger 'aged' cells within hours, reshaping how senescence starts

Wounds may trigger 'aged' cells within hours, reshaping how senescence starts Sadie Harley Scientific Editor Robert Egan Associate Editor What if a process we associate with aging actually helps the body heal? A study led by Mikolaj Ogrodnik, LBI Trauma, published in Nature Cell Biology, shows that cells enter a state of senescence within minutes to hours after an injury—and that this rapid response not only plays a key role in wound healing, but also changes the paradigm of how slowly...

Phys.org 9d ago

'Crystals' of space-time could be the origins of certain rare black holes, theoretical study hints

'Crystals' of space-time could be the origins of certain rare black holes, theoretical study hints By taking general relativity into higher dimensions, a trio of physicists has proven that a mathematical pattern of ripples in space-time geometry could give rise to naked singularities and microscopic black holes. A new theoretical study adds fresh support to the idea that a mathematical pattern of ripples in space-time geometry could give rise to naked singularities and microscopic black...

Live Science 3d ago

Aluminum oxide's irregular atomic surface explains its low reactivity

Aluminum oxide's irregular atomic surface explains its low reactivity Gaby Clark Scientific Editor Robert Egan Associate Editor Why do certain surfaces behave very differently from what theoretical calculations suggest? Scientists long assumed that the aluminum oxide surface should be highly reactive and capable of splitting water molecules. In experiments, however, this behavior is barely observed.

Phys.org 7d ago

Infrastructure for African mines destroying forests at 34 times the rate of the mines themselves

Infrastructure for African mines destroying forests at 34 times the rate of the mines themselves Gaby Clark Scientific Editor Robert Egan Associate Editor Industrial-scale mining in Africa to support global supply chains is leading to unprecedented deforestation across the continent, with 34 hectares of forest removed for every single hectare of active mine site. The scale of mining's deforestation footprint is laid bare in a new University of Sheffield-led study showing that, between 2001...

Phys.org 4d ago

Thirty years at El Mirón cave uncover 40,000 years of Iberian prehistory

Thirty years at El Mirón cave uncover 40,000 years of Iberian prehistory Lisa Lock Scientific Editor Robert Egan Associate Editor For the past three decades, a team of archaeologists have been uncovering some of the field's most recent monumental discoveries, relying on gut instinct, persistent hard work, and cutting-edge methods and technologies. The El Mirón Cave excavation project has been a long-term commitment for the lead researchers, fueled by each new discovery and a continued...

Phys.org 9d ago

Marjane Satrapi’s Persepolis reshaped how the world sees Iran

Marjane Satrapi’s Persepolis reshaped how the world sees Iran First published in 2000, Persepolis created a transformative shift in comics, memoir and political storytelling - Bookmark - CommentsGo to comments Marjane Satrapi, best known for her memoir and film Persepolis, has died, aged 56. The death of this much loved Iranian–French artist, graphic novelist, film-maker and activist has been met with widespread celebration of her life – and its dedication to resistance, freedom and...

The Independent World 5d ago

Why the loss of Oscar-nominated Persepolis creator Marjane Satrapi is a tragedy for Iran

Why the loss of Oscar-nominated Persepolis creator Marjane Satrapi is a tragedy for Iran The French-Iranian filmmaker shed light on the untold lives of Iranian women following the 1979 Islamic Revolution. As the US-Iran conflict shows no end in sight, Maira Butt reports on why Satrapi’s powerful voice will be missed - Bookmark - CommentsGo to comments Marjane Satrapi, the Iranian-French cartoonist best known for her 2007 film Persepolis, died on Thursday aged just 56. Her death comes just a...

The Independent World 3d ago

Marjane Satrapi, Iranian-French cartoonist and filmmaker behind Persepolis, ‘dies of sadness’ aged 56

Marjane Satrapi, Iranian-French cartoonist and filmmaker behind Persepolis, ‘dies of sadness’ aged 56 She died just over a year after the passing of her husband - Bookmark Marjane Satrapi, the acclaimed Iranian-French cartoonist and filmmaker behind the 2007 drama Persepolis, has died at the age of 56. In a statement, the French presidency hailed her passing as “the loss of a leading figure of French culture and an artist devoted to freedom, whose work carried a universal message and earned...

The Independent World 6d ago