Andy Resnick's latest activity

Next up: Altered Tinguaite/Phonolite (QAPF field 11), Fen complex. Similar appearance as Fen 253. Blocky phenocrysts of cancrinite...

I'm glad I had a helpful suggestion, I hope I can continue to do so :) One critical point I am unclear on is what is meant by 'thin' in...

Artemis II has now launched and is on the way to the Moon: NASA's Artemis II Moon Mission Lifts Off By pure coincidence I shot the...

Some gorgeous photos here: Artemis II Lunar Flyby (NASA) Quote: "The first flyby images of the Moon captured by NASA’s Artemis II...

Plasma optics is quite specialized, I was still surprised to see no discussion in the 'standard' textbooks. The basic complication is...

Next up: Altered Tinguaite/Phonolite (QAPF field 11), Fen complex. This rock has an appearance very similar to Fen 252. Trachytic...

Where are all these people going? Down to the Tidal Basin in Washington DC, to see the cherry blossoms!

Time to scare @Andy Resnick with some lens servicing photos... :biggrin: Servicing a lens in bed while listening to Neil DeGrasse...

Altered Phonolite (QAPF field 11), Fen complex. Groundmass primarily consists of trachtytic sanidine laths and aggregates of anhedral...

The sapcicle grew overnight:

At higher magnifications, you can use targets designed for electron microscopy (that's what I use), for example...

From a dash cam video taken 3/22/2023. I was dodging a flock of turkeys on the shoulder of the road, and one decided to fly up in front...

Took this a few weeks ago, forgot to share. I've forgotten the camera settings (400mm @f/4 lens, tho...): Jupiter (visible as a tiny...

Pine tree sap icicle (sap stalactite?) [Edit] Up close, it really looks like an icicle-icicle:

Thumbs-up for the photo, thumbs-down for the snow :)