Dr. Amy Lowitz

Dr. Amy Lowitz

@weblogarithms.bsky.social

Physics PhD, grumpy old lady. Frequent Antarctican. Event Horizon Telescope & South Pole Telescope (not speaking for them). Same @ on 🧡, 🐘, and πŸ“·.

163 Followers 72 Following 33 Posts Joined Jul 2023
3 months ago

Out-of-context Quote of the Day: "When I call myself draconian in front of a room full of youths, I mean it!"

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3 months ago

Out-of-context Quote of the Day: "It's like he has the zoomies but angry and only in his face."

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4 months ago

Out-of-Context Quote of the Day: "HP Lovecraft didn't have GPS. Coincidence? I think not!"

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4 months ago

Out-of-Context Quote of the Day: "I don't think witches are required for forests, like, even as a single gauge particle."

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4 months ago

If you are far enough away you can always basically see to the other side in the sense that eventually you can't resolve the forest

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4 months ago

Out-of-Context Quote of the Day: In the limit that you are very very close you can never see to the other side of the forest if there are >0 trees

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7 months ago

Out-of-context Quote of the Day: "Did you make any more long necked creatures today? Any more beverages named after members of your family?"

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1 year ago

I did once manage to update Wheezy all the way to Bullseye on a live production machine, albeit not one doing super critical things. (I had just inherited it; I did not neglect it like that, for the record πŸ˜…). It did come out fine, shockingly. This time it was just my own ancient, disused netbook.

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1 year ago

I gave up pretty fast πŸ˜…

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1 year ago
photo of a computer screen showing an update in progress from Ubuntu 12.04 to 14.04

What do we think the probability is that I can get this thing all the way to 24.04? πŸ˜…πŸ€£

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1 year ago
about 12 dozen small, white-ish football-shaped cookies stacked on a cooling rack

A totally normal number of cookies (unrelated to the totally normal number of power supplies I posted the other day, I swear).

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1 year ago

It's part of a RF switch matrix, so yes there are some splitters on there, but also some switches and amps. Routing signals from lots of different places to either test equipment or to where they normally go.

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1 year ago
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Casually hogging every 50 ohm termination in the lab. #justRFthings πŸ§ͺπŸ”­

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1 year ago
a wooden table is covered with many identical partly-assembled electronics boxes.

We're in production mode, y'all. These will be used to track the MASER stability at most of the Event Horizon Telescope sites. πŸ§ͺπŸ”­πŸ••

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1 year ago
15 small power supplies stacked up on a wooden table. They are partially wired up and there are little piles of additional wires in the foreground and background.

A totally normal number of power supplies:

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1 year ago
A 10 m diameter radio telescope, with some pine trees and snowy ground in the foreground.

It seems this place is getting busy again, so maybe I'll try out spending some time here again.

Anyway, as proof(?) I did some science in the last 11mo since my last post, here's the SMT on Mt Graham from when I was up there for the EHT (Event Horizon Telescope) campaign in April.

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2 years ago
A large electronics box with the lid off Two plywood crates full of boxes

Yesterday's activity: replace some shunt resistors in the EHT recorders, and then my crates of disk modules for the SPT 2024 EHT campaign arrived, so I unpacked all of the disks and installed them in the recorders, ready for April. πŸ”­πŸ‡¦πŸ‡ΆπŸ“‘πŸ•³οΈπŸŒŒ

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2 years ago

They were on a very tight schedule, so SPT and EHT combined only got 5 minutes to talk, and no time for questions. Unfortunately these visits are always quite crammed.

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2 years ago
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Today I spoke about EHT (Event Horizon Telescope) to some members of Congress and staffers who came to visit us at Pole and learn about the science we do here. πŸ”­πŸ‡¦πŸ‡ΆπŸ•³οΈπŸŒŒ

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2 years ago
Me standing with a frosty face in front of the South Pole Telescope.

Made it to Pole! I'm here to do some work on the South Pole Telescope for the Event Horizon Telescope. πŸ”­πŸ‡¦πŸ‡ΆπŸ“‘πŸŒŒπŸ•³οΈ

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2 years ago
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We're on the plane! Here we gooooo!

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2 years ago

Haven't even left the hotel yet and we're already on a 2h delay for our ice flight today.

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2 years ago
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Trying on my loaner cold weather gear a couple days ago in Christchurch. Hopefully we're heading to McMurdo today and then Pole tomorrow (but probably the weather and airplane maintenance gods have other plans).

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2 years ago

Most of that pile is wool, so warmer than it may appear, but the big stuff (parka, insulated overalls, etc) are provided by the US Antarctic Program; I will pick up loaners when I get to Christchurch.

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2 years ago
A corner on the floor with somewhat messy piles of clothes and equipment, not yet packed into a suitcase.

And so begins another trip to the South Pole (with chaotic packing the night before). πŸ‡¦πŸ‡ΆπŸ”­πŸ“‘πŸŒŒπŸ•³οΈ

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2 years ago

I suspect it's the same but I'm not 100% sure. So I guess it's tied for largest with the other GMT mirrors and also with the LBT mirrors.

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2 years ago
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Here's a 6.5 m mirror for a different project. It was cast in 2019 and is now being polished.

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2 years ago
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Last weekend I got to visit the Mirror Lab at the University of Arizona to see the casting of the 7th mirror for the GMT. Tied with the other 6 GMT mirrors, it's the largest monolithic mirror ever cast, at 8.4m. That whole round structure is a spinning furnace, and it's about 1200Β°C inside. πŸ”­

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2 years ago
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Wanna view the eclipse and have literally no supplies? You can make a pinhole camera with just your hand! (hold your hand so just a tiny dot of light goes through). πŸ”­

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2 years ago

Got my flu shot today! πŸ’‰ Have you scheduled yours yet?

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