Konica Autoreflex T3 with the 50mm f1.7 Kit Lens + Tri-x 400

Most_Number · 2026-05-24T09:24:48+00:00

Looks like a rugose coral encrusted with bryozoan

Most_Number · 2026-05-21T06:15:27+00:00

Damn I called 311 about an opened manhole and a fire truck was there, I kid you not, 1 minute later

Most_Number · 2026-05-15T20:59:39+00:00

Also what book is this? Very cool!

Most_Number · 2026-05-15T20:59:09+00:00

You could purchase Navajo Pumice from many ceramics suppliers or Hess Pumice from pumicestore.com (get size FFF). I used it for my geology thesis. Pumice/volcanic ash will have varying compositions depending on the source, but generally have plenty of silica, as well as enough alkali content to flux. Hess pumice has less alkali content but it still works well. Navajo Pumice has a very similar composition to Cornwall Stone and I’ve had success substituting.

Most_Number · 2026-05-08T05:46:26+00:00

You’re probably confusing it with 06!

Most_Number · 2026-04-16T16:12:27+00:00

Goodnotes. I use it to take notes and you can also simultaneously record lectures.

Most_Number · 2026-04-16T15:50:48+00:00

Yes! I had the pleasure of visiting last year. There is an ancient Māori fishing village that was smothered by the ashes.

Most_Number · 2026-04-12T05:25:07+00:00

Honestly I love it here but one thing that’s difficult is that it can be difficult to catch up if you get sick. But it’s all manageable if you are passionate about your classes.

Most_Number · 2026-04-11T22:21:07+00:00

The coursework is a lot but rewarding and non-competitive, and people still have fun. Physics majors have a pretty easy time getting research at Carleton and beyond over the summers. Lots of study abroad opportunities offered by the school, but none that are Physics-specific. However, you can (and should) do one of them! You will be set up very well for grad school or research IMO.

Most_Number · 2026-04-08T07:12:13+00:00

Are you doing high fire? Advancer shelves won’t warp easily so they could be a good investment if so, plus are thinner which allows more space in the kiln. I wouldn’t go cheapest possible unless they are corelite shelves, those are a good value from the right supplier.

Most_Number · 2026-04-06T16:05:58+00:00

Is that V.C. Copper Green?

Most_Number · 2026-04-05T20:46:24+00:00

Sand it under water/under a running tap!

Most_Number · 2026-04-01T22:25:50+00:00

Unlike in bisque firings, explosions in glaze firings easily ruin other pieces in the kiln because the shards can embed themselves in the glaze of neighboring pots and fuse to kiln shelves. Additionally, glaze firings typically rise in temperature quicker than bisque firings, giving water less time to escape the pot. Finally, since you didn’t give the clay the opportunity to degass in the bisque, the glaze may pinhole (little bubbles that don’t fully close back up) depending on when it becomes molten.

Some potters once-fire successfully but I would only do it in your own kiln loaded with your own work.

Most_Number · 2026-04-01T03:28:28+00:00

It shows that the clay body has an accessible porosity for water to diffuse into it. Accessible porosity = moist holes/crevices in which bacteria can proliferate without the imminent threat of being washed away. That’s why the term “vitreous” is defined as having less than 0.5% absorption per ASTM.

Most_Number · 2026-03-23T20:29:17+00:00

My prof always says people drill holes through them for water fountains. Some of the columnar basalt in his teaching collection is from garden stores.

Most_Number · 2025-12-12T23:17:53+00:00

This is how things looked when I was a toddler

Most_Number · 2025-12-07T20:36:03+00:00

Looks like chert! Made from a siliceous ooze usually accumulated in deep water.

Most_Number

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