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?

Diagram · General · Language · Media

Communicating what physics says — Domain of Science YouTube channel

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 — Domain of Science YouTube channel

General · Language · Media

Acceleration causes gravity, gravity causes acceleration

As I’ve written elsewhere,  I sometimes think that generations of scientists raised in space might help advance physics, having lived in a world dominated by inertia (rather than friction). Especially in regard to a visceral understanding of microgravity. Like characters in the TV series The Expanse. So, this Space.com article (June 18, 2018) “Relativity: The… Continue reading Acceleration causes gravity, gravity causes acceleration

General · Media

World Science Festival — black holes, aliens, etc

Space.com May 30, 2018, “World Science Festival Kicks Off in NYC with Black Holes, Aliens and More.” Science fans from around the globe will converge in New York City this week for the 11th annual World Science Festival, a celebration of scientific discoveries with more than 70 live events. The festival kicked off Tuesday (May… Continue reading World Science Festival — black holes, aliens, etc

General · Language · Media

Multiverse paradox — potpourri of universes

I’ve been following this topic for years. Just some notes before I post something more complete — prompted by Stephen Hawking’s final research paper, much in the news. Multiverse: infinite or countable verses? • Prof Stephen Hawking’s multiverse finale (May 2, 2018), BBC News, includes a video. The study was submitted to the Journal of High-Energy… Continue reading Multiverse paradox — potpourri of universes

General · Language · Media · Site

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

Language · Media · TV

The Earth is round — needless to say?

While it is strange (and disturbing) that some religious conservatives dispute the scientific consensus on the age of the Earth and the universe, another Space.com article this past week (3-10-2018) — Yep, the Earth Is Still Round, Neil deGrasse Tyson Says — reminded me that there’s an even stranger group, namely, those who still play… Continue reading The Earth is round — needless to say?

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