Tag Archives: Time

2023: Top Discoveries In Biology & Neuroscience

Quanta Magazine (December 21, 2023): 2023’s Biggest Breakthroughs in Biology and Neuroscience.

Video timeline: 00:05 The Investigation of Consciousness – Our minds are constantly taking in new external information while also creating their own internal imagery and narratives. How do we distinguish reality from fantasy? This year, researchers discovered that the brain has a “reality threshold” against which it constantly evaluates processed signals. Original paper: “Subjective signal strength distinguishes reality from imagination”

04:30 Microbiomes Evolve With Us – This year, scientists provided clear evidence that the organisms in our microbiome —the collection of bacteria and other cells that live in our guts and elsewhere on our body — spread between people, especially those with whom we spend the most time. This raises the intriguing possibility that some illnesses that aren’t usually considered communicable might be.

08:43 How Life Keeps Time – The rate at which an embryo develops and the timing of when its tissues mature vary dramatically between species. What controls the ticking of this developmental clock that determines an animal’s final form? This year, a series of careful experiments suggest that mitochondria may very well serve dual roles as both the timekeeper and power source for complex cells.

FILM REVIEWS: THE ‘100 BEST MOVIES OF THE PAST 10 DECADES’ (TIME MAGAZINE)

TIME Magazine (July 26, 2023) – TIME’s Stephanie Zacharek on the top films from the 1920s through the 2010s.

2010s

2000s

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Book Reviews: ‘On The Origin Of Time – Stephen Hawking’s Final Theory’

nature Magazine Science Book Reviews – April 2023

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On the Origin of Time

Like his mentor and colleague Stephen Hawking, Thomas Hertog has never shied away from being ambitious in theorizing about the universe. This sweeping book provides an accessible overview of both what we know about cosmology, and some audacious ideas for moving into the unknown. It is an introduction to Hawking’s final theory, but also a glimpse into even grander theories yet to come.

Professor Sean Carroll, author of The Biggest Ideas in the Universe

Books: ‘The Biggest Ideas in the Universe – Space, Time, And Motion’ (2022)

The Biggest Ideas in the Universe

Vol. 1: SPACE, TIME, AND MOTION

The Biggest Ideas in the Universe

Vol. 1: SPACE, TIME, AND MOTION

Book cover for Sean Carroll's "The Biggest Ideas in the Universe"

Dutton Books, 20 September 2022

The goal of The Biggest Ideas in the Universe is to bridge the gap between popular-science treatments of modern physics and true expert knowledge. This is the real stuff — equations and all — presented in a way that presumes no prior knowledge other than high-school algebra. Readers will come up to speed about exactly what professional physicists are talking about, with an emphasis on established knowledge rather than speculation.

Volume One, Space, Time, and Motion, covers the domain of classical physics, from Newton to Einstein. We get introduced to Spherical Cow Philosophy, in which complications are stripped away to reveal the essence of a system, and the Laplacian Paradigm, in which the laws of physics take us from initial conditions into the future by marching through time. We learn the basic ideas of calculus, where we can calculate rates of change and how much of a quantity has accumulated. We think about the nature of space and time, separately and together. Finally we are introduced to the mysteries of non-Riemannian geometry and Einstein’s theory of curved spacetime, culminating into a dive into black holes.

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Previews: New Scientist Magazine – June 18, 2022

New Scientist Default Image

What is time? The mysterious essence of the fourth dimension

The nature of time is a tricky notion to pin down. But whether it is a fundamental part of our universe or just an illusion has huge implications

COVER STORIES

FEATURES Could we ever go back in time? Relativity does not rule it out

FEATURES How do we sense time? The brain cells that order our memories

Views: American Arctic’s Disappearing Traditions

To Laureli Ivanoff, climate change is far from an abstract idea. As an Iñupiat writer living in the remote Alaskan town of Unalakleet, she’s seen firsthand the warming planet’s tangible impact on her culture’s food traditions, some of the only practices to survive colonization. “Ice fishing or hunting or just going out and enjoying ourselves, there’s no way to really do that if there isn’t any snow,” she says.

Animals that rely on snow and sea ice, such as the ugruk—or bearded seal—are harder to find as sea ice melts, leaving subsistence hunters concerned for their livelihoods. Although local native communities have weathered many historic hardships before, Ivanoff believes the challenges ahead are unprecedented. “Already every year, we’re wondering, ‘Is the ocean ice going to form?

Read more about climate change’s impact on the American Arctic : https://ti.me/3MqmwOe

Morning News: China’s Zero-Covid Crisis, Prisons Sweltering, Time Disputes

China’s zero-covid policy is being stretched to breaking point as the virus makes its way through the city. Supplies are low, residents are angry and there is no end in sight. 

The debate about air conditioning in America’s sweltering prisons will only heat up further. And how a dispute about time from exactly a century ago remains timely today.