General · Media · Site

Humans fit for space? — NASA’s Twins Study

[See comments for updates.] Today Wired.com (among others) published an article “Are Humans Fit for Space? A ‘Herculean’ Study Says Maybe Not” which summarizes NASA’s Twins Study which was published in Science (The NASA Twins Study: A multidimensional analysis of a year-long human spaceflight). Wired: In space, fluids won’t drain, and astronauts develop red, puffy… Continue reading Humans fit for space? — NASA’s Twins Study

Media · Site

The Milky Way’s shape — a peculiar disk

Popular media is abuzz today with news regarding research by NAOC (National Astronomical Observatories of Chinese Academy of Sciences) on the shape of our galaxy, the Milky Way, published in Nature Astronomy today. A peculiar disk. A new 3D model. Original article on Nature Astronomy: “An intuitive 3D map of the Galactic warp’s precession traced by classical… Continue reading The Milky Way’s shape — a peculiar disk

General · Language · Media · Site

Imaging a light pulse?

Reference: The 2018-2019 Watson Lecture Series, Caltech, Beckman Auditorium World’s Deepest-Penetration and Fastest Optical Cameras by Lihong Wang Wednesday, November 28, 2018, 8:00 PM – 9:30 PM Lihong Wang will discuss the development of photoacoustic tomography, which allows scientists to peer deep into biological tissue. He will also talk about his lab’s development of compressed ultrafast… Continue reading Imaging a light pulse?

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What’s an attosecond?

As I continue to ponder the mind boggling character of quantum physics (the 10^-n reality), I’m fascinated by articles about novel experiments which routinely explore infinitesimal time scales and distances. Nanoscale (10^-9) is amazing! But now there’s the attosecond. This Space.com article (April 30, 2018), “The ‘Attoclock’ Shows How Fast Electrons Move in a Millionth of a Billionth… Continue reading What’s an attosecond?

Book · General · Media · Site

Celebrity and cultural phenomenon — Stephen Hawking

Stephen Hawking died last week. Lots of tributes in the media about his scientific legacy and life. Sean Carroll posted an article on his blog on March 16: “Stephen Hawking’s Scientific Legacy.” It’s particularly interesting. As a career physicist and cosmologist, Carroll met and interacted with Hawking over the decades. Early in his career Carroll turned… Continue reading Celebrity and cultural phenomenon — Stephen Hawking

General · Language · Site

Star bright, first light — fingerprint hunt

Following up on the “Ultimate how” question in the context of the Big Bang theory, how far back in time can we actually detect evidence, follow a breadcrumbs trail? To a cosmic dawn? Space.com, among others, today posted articles about research at the Murchison Radio-Astronomy Observatory (MRO), in particular the MRO’s Experiment to Detect the Global EoR… Continue reading Star bright, first light — fingerprint hunt

General · Language · Site

Biggest thing in the universe?

So, on the 10^n scale, today Space.com posed the interesting question “What Is the Biggest Thing in the Universe?” Scientists have created the first map of a colossal supercluster of galaxies known as Laniakea, the home of Earth’s Milky Way galaxy and many other. This computer simulation, a still from a Nature journal video, depicts… Continue reading Biggest thing in the universe?

General · Media · Site

Communicating what physics says — The Science Asylum

Today’s post is somewhat different than usual. I’m highlighting a YouTube channel. Communicating science to a general audience has a long history. The bibliography for my physics blog contains some books by authors to this purpose. Modern physics has many great stories, and the just plain strangeness of quantum physics lends itself to great storytelling.… Continue reading Communicating what physics says — The Science Asylum

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Quantum physics 2017 — highlights

Yesterday Space.com summarized some of the highlights in quantum physics for 2017 (slideshow): “Quantum Physics in 2017.” This year ushered in astonishing quantum discoveries from all corners — deep-buried neutrino labs in Antarctica, quantum-computing labs at major universities and even thunderstorms rumbling over Japan. From time crystals to the elusive tetraquark, here are 15 of… Continue reading Quantum physics 2017 — highlights