Gregory J Quarles

Beautiful sunset tonight in #Tucson. Feeling blessed to witness it and record it. Thanks to the dust particles for contributing to the Rayleigh scattering and the brilliant orange and red highlights from the spectrum. “Once you have tasted the taste of the sky, you will forever look up” L DaVinci

Congratulations Mikhail! Very well-deserved recognition. 🎉

Act Now for Science from SPIE. Includes a letter template💡🔭🧪

spie.org/community-su...

Great job on the poster @marcoslabur.bsky.social!

An #AdaptiveOptics #Binocular Visual Simulator + dynamic aberrometer with automatic convergence control!!! @marcoslabur.bsky.social @cvsuor.bsky.social #RochesterOptics @flaumeye.bsky.social; Presented by Renuka Manjula; Fully #NationalEyeInstitute #NEI funded; @arvoinfo.bsky.social #ARVO2015

Honored to be the Keynote speaker for the Innovations in Defense and Security sessions at the Optica Industry Summit at Edmund Optics in Florida this week. Fantastic presentations, strategic discussions and networking with corporate executives and key decision makers across critical sectors.

Are you a microbiologist looking to move to Alaska? There is an opening for a microbiologist in a clinical lab in Bethel. Only requires a BS. Please share with your networks, they really need to hire someone ASAP.

phh.tbe.taleo.net/phh01/ats/ca...

#AlaskaSky #Microjobs 🧪🦠🔬

🧵: I am getting texts on what scientists should do in this perilous and scary moment. My advice: your biggest power is to organize through your professional societies. A few ideas -

There are protests this Tuesday (March 4th) and #StandUpForScience rallies and protests on Friday March 7th. Then WomensMarches on the 8th. Get out there. We have a job to do because the current GOP are keeping us from doing our real jobs. 🧪🦠🌎🧬🗽

After 3 surgeries, a blood clot, infection & being hospitalized for over a week, the moment I was discharged I rushed to the airport so I could get on a plane to DC & vote NO on Republicans’ disastrous budget plan.
Rep. Pettersen traveled from Colorado with her newborn son so she could vote NO. 🧵

Good night BlueSky 🦋

I’m calling it an early night to go read. I’m in a flare up (autoimmune) bc this past month has taken a toll on my body. I’ll be back tomorrow-ish. Don’t forget to take time for yourself. You all are amazing 🩵

We are probably the first country to be asked to pay reparations for being invaded. It would be funny if it weren't so tragic.

Try this

www.nytimes.com/2025/02/16/o...

Way to go, Friendship! 🩵

“In 1923 A. H. incited an insurrection against the German Gov’t.
He was tried, given a slap on the wrist, &became a convicted felon. Despite being treated charitably by the judge, H claimed…political persecution and successfully portrayed himself as a victim of the "corrupt" Social Democrats.”

RFK Jr. rescinds Indian Health Service layoffs The last-minute decision to rescind the layoff order for IHS came as healthcare workers waited for bad news

On Friday Night Musk fired 2,200 people at the Indian Health Service, including 100 docs and 350 nurses and other healthcare workers. Tribes demanded that he rethink this, so he did, and now “only” 950 have been fired. IHS is already chronically understaffed. ictnews.org/news/rfk-jr-...

How do we maintain common decency when monsters are in charge?

Part of the way to do this, I believe, is to celebrate integrity wherever we find it — like the actions of Danielle Sassoon. https://robertreich.substack.com/p/surviving-in-a-time-of-monsters

A girl making her hair stand up with a Van de Graaff generator in front of a poster of Marie Curie.

Girls playing with a particle physics puzzle

A group photo from the Women in Physics Canada conference in 2013 at SFU

A pic of me holding a bowling ball on a long cable for a class physics demo

Happy International Day of Women and Girls in Science to all of the badass women+ and girls out there doing and teaching science and making science a better place for everyone. #IDWGS #WomenInSTEM 🧪 🔭 ⚛️ 👩‍🔬 🎢 🥽 ♾️ 🍎 #AcademicSky #SciComm #SciArt

Thank you Harry!
You are a hero! Period!
We will never forget your bravery that day, and the sacrifice you and your colleagues made to fight back these dangerous maga minions.

🙏

The New York Times says “some critics” think Trump’s plan to eject 1.8 million Palestinians from Gaza is “like” ethnic cleansing.
No, NYT, it’s the very definition of ethnic cleansing under international law. No need for weasel wording. Look it up.

Awesome Moon Halo tonight. The moon's halo (or lunar halo) is a large bright ring visible around the moon. This beautiful phenomena around the moon is a result of the refraction of moonlight through ice crystals in the upper atmosphere. #EnabledbyOptics

Trust me, bro.

Know who turns the crank

Just so you know, one plastic straw takes 200 to 500 years to decompose. Americans use an average of 500 million straws daily, contributing to 8M+ tons of plastic entering the oceans each year. Plastic straws are also a major threat to sea turtles among other marine life.

#WelcomeToTheShitShow

🧵 1/ Dr. Peter Hotez isn’t just a scientist—he’s a humanitarian. His work has saved countless lives by developing low-cost, patent-free vaccines for diseases that disproportionately impact the world’s poorest communities. Let’s dive into his incredible contributions. ⬇️

She says it's both safe to fly but the system is run by unqualified people. Also she says "tens of millions" of Americans fly per day. It's under 3 million.
Is it too much to ask to have a White House press secretary who isn't an obvious moron?

Any undergraduate students interested in optics, bio-inspired materials, biopolymers: check out this opportunity in our department at the @mpici.bsky.social 🧪💡