Understanding quantum entanglement

20 minutes

Scars

19 minutes

Liza

2 minutes

3D-printing coral reefs

4 minutes

The final nights

18 minutes

Quantum entanglement is tough to dumb down, but this analogy can help detangle it

The term ‘quantum entanglement’ refers to quantum particles being interdependent even when separated, to put it in exceedingly simple terms. Because this behaviour was so at odds with his understanding of the laws of physics, Albert Einstein called the phenomenon ‘spooky action at a distance’. And because it is so hard to square with our own lived experience, it is often used as one of the foremost examples of ‘quantum weirdness’. In this expansion on a previous Royal Institution presentation, the UK science writer Philip Ball details a metaphor devised in the 1990s by Sandu Popescu, professor of physics at the University of Bristol, and Daniel Rohrlich, a physics researcher and lecturer at Ben-Gurion University of the Negev, to help bring our current best understanding of quantum entanglement into focus. In doing so, Ball also provides an enlightening window into physicists’ evolving understanding of the quantum world throughout the 20th century.

Video by The Royal Institution

Producer: Anand Jagatia

How scars continue to shape the mind long after the tissue has settled

Whether born of an accident or an illness, every accumulated scar has in some way shaped the lived experience of the person who carries it. But, even as every scar tells a life-altering story, it’s considered rather tactless to ask someone about their physical marks. This short documentary from the UK directors Rebecca Lloyd-Evans and Laura Dodsworth breaks the taboo. Reaching far beneath the skin, Lloyd-Evans and Dodsworth profile five people with significant scars that vary greatly in appearance and origin – from injuries of war to marks of self-harm to wounds present from birth. In doing so, the film explores the potential for scars to fundamentally alter the way people view themselves, others and the world at large.

Producers and Directors: Rebecca Lloyd-Evans and Laura Dodsworth

Website: Guardian Documentaries

Can you express sounds with sights? An artist takes a crack at animating jazz piano

For his short film Liza, the French animator Bastien Dupriez aimed to create ‘a kind of visual transcription’ of the George Gershwin song Liza (All the Clouds’ll Roll Away) (1929), as performed by the French musician Jean-Michel Pilc. As the rollicking jazz piano builds, the frame splashes with abstract shapes and colours, as well as hints of human forms. The resulting effect is of visuals built to accompany and respond to the mood of the music, rather than the much more familiar inverse experience. Beyond serving as a mesmerising slice of audiovisual eye candy – and it certainly is that – the piece also provokes a bevy of intriguing questions about our multisensory experience of art.

Director: Bastien Dupriez

Ceramic coral reefs and sawdust houses – the architects 3D-printing the future from scratch

3D printing is moving beyond plastics: instead, the American architects Ronald Rael and Virginia San Fratello (working together as Rael San Fratello) use a wide array of recycled and organic materials – everything from car tyres and sawdust to grape skins and coffee grounds. Via experimentation with such novel substances, the duo aims not only to create more sustainable approaches to 3D printing, but to brainstorm innovative solutions to pressing societal problems too. This video from the Museum of Modern Art (MoMA) in New York takes viewers inside Rael San Fratello’s ‘print farm’ in Northern California, and spotlights two of their most promising initiatives – a project to support coral reef restoration via protective clay ‘coral seeding units’, and a prototype cabin built from ceramic and sawdust tiles to help solve California’s affordable housing crisis.

Video by MoMA

Director: Jennifer Sharpe

What a ‘good death’ can look like, in the quiet company of a compassionate stranger

‘When I can’t do things for someone else, I simply become unhappy,’ says Loes Prakke, waiting outside the front door of a small house late one evening. She rings, enters and introduces herself to Joop, an elderly man who is sitting up in bed and clearly sick. She tells him she’ll be staying through the night, so that Joop’s loved one, Ria, can get some rest. After acknowledging his hardship, she offers to spend some time chatting so they might get to know one another a bit.

The third volunteer to watch over Joop in his illness, Loes’s warm presence is a simple yet deeply meaningful gift to the couple – a reassurance that Joop will be cared for and comfortable during this final phase of his life. In her short documentary The Final Nights, the Dutch director Reneé van der Ven matches the gentle presence of her subject with her filmmaking, capturing Loes’s extraordinary gift for compassion with a respectful observational style. In chronicling Loes and Joop’s nights together, the film quietly reflects on the meaning of a ‘good death’, as well as the power of human connection in its many distinct forms.

Director: Reneé van der Ven

Quantum entanglement is tough to dumb down, but this analogy can help detangle it

The term ‘quantum entanglement’ refers to quantum particles being interdependent even when separated, to put it in exceedingly simple terms. Because this behaviour was so at odds with his understanding of the laws of physics, Albert Einstein called the phenomenon ‘spooky action at a distance’. And because it is so hard to square with our own lived experience, it is often used as one of the foremost examples of ‘quantum weirdness’. In this expansion on a previous Royal Institution presentation, the UK science writer Philip Ball details a metaphor devised in the 1990s by Sandu Popescu, professor of physics at the University of Bristol, and Daniel Rohrlich, a physics researcher and lecturer at Ben-Gurion University of the Negev, to help bring our current best understanding of quantum entanglement into focus. In doing so, Ball also provides an enlightening window into physicists’ evolving understanding of the quantum world throughout the 20th century.

Video by The Royal Institution

Producer: Anand Jagatia

Aeon is not-for-profit
and free for everyone
Make a donation
Get Aeon straight
to your inbox
Join our newsletter

Scientists working extra hours during the COVID-19 pandemic at the Laboratory of Infectious Diseases in Athens, Greece. 18 March 2020. Photo by Enri Canaj/Magnum

Essay/
Philosophy of science
The good scientist

Science is the one culture that all humans share. What would it mean to create a scientifically literate future together?

Martin Rees

Honeybees collect nectar from an Eryngium plant at Great Dixter in Northiam, East Sussex, on 4 August 2013. Photo by Chris Helgren/Reuters

Essay/
Animals and humans
The accidental beekeeper

The gift of a half-wanted hive took me into the world of bees, kept and wild: a place of generosity and attentiveness

Helen Jukes