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Carissa Holohan

@carissa.science.bsky.social

Principal HPC Network Architect at Argonne National Laboratory - Opinions are mine, not my employer's! - I make supercomputers talk to each-other! - ⚧ MTF - She/Her ⚠️This account is rated M for Mature!⚠️ Formerly @CarissaHolohan on the BirdSite™️

613 Followers  |  364 Following  |  214 Posts  |  Joined: 04.01.2024  |  2.5511

Latest posts by carissa.science on Bluesky

I had discovered the magic of dialing "atdt *67," before my local BBS, which disabled Call Waiting, allowing me to send all my mother's random junk callers to a busy signal - much to her dismay. That was incentive enough for her to finally get me a "teen line" of my own and then I was UNSTOPPABLE!

27.02.2025 02:11 — 👍 3    🔁 2    💬 0    📌 0

I started at 2400 and I just remember how awesome it was to be on that first T1 line. Zoom!

27.02.2025 01:30 — 👍 2    🔁 0    💬 1    📌 0

Once in a while, my brain has a “record scratch” moment when I remember how crazy fast 1.544Mbps was… as I’m measuring my current network in literal *hundreds* of Tbps.

I then slowly reboot, with all the 5.25” drive clunking of an Apple ][

27.02.2025 00:34 — 👍 3    🔁 0    💬 1    📌 0

My callboy? Electric.

26.02.2025 19:10 — 👍 2    🔁 0    💬 0    📌 1
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Illinois respects the sovereignty and borders of Ukraine — now and always.

Three years ago, Russia invaded Ukraine without warning or provocation. Peace and freedom requires resistance to tyranny and oppression. 

Slava Ukraini!

24.02.2025 19:10 — 👍 5295    🔁 861    💬 105    📌 52
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Some useful fennalgebra...

Check out my animated series over @bsky.fireflycitystories.com :D

#art #furryart #webcomics

21.02.2025 15:35 — 👍 68    🔁 11    💬 0    📌 0

Suspenders girl here, A+ 💯

21.02.2025 00:55 — 👍 2    🔁 0    💬 0    📌 0
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once an intern and now our Sustainability Specialist, you might remember him from our favorite content such as sewer shanty

10.01.2025 13:55 — 👍 165    🔁 33    💬 4    📌 6
Preview
a cartoon of a lion wearing a crown with the words i see what you did there below it ALT: a cartoon of a lion wearing a crown with the words i see what you did there below it
20.02.2025 06:36 — 👍 1    🔁 0    💬 0    📌 0

My Electronics I professor, way back in 2000, once said (after his math came out wrong by a few volts): “In science, an order of magnitude is usually good enough.”

19.02.2025 23:10 — 👍 4    🔁 1    💬 1    📌 0

Sometimes, you just have to walk over to your supercomputer and rip a power cord out to remind it who’s the boss.

Take that, switch x6101c0r47b0! You will forward packets, and that’s an order!

19.02.2025 01:01 — 👍 13    🔁 1    💬 0    📌 0

We did a lot of labs that crossed into frequencies in the “longwave” region and I recall the lm358 because it was good for such a wide bandwidth right up to about a MHz. Been so long since I played with wibbly waves in their analog form though 😰

18.02.2025 02:27 — 👍 1    🔁 0    💬 0    📌 0

Gotta love the LM358 💕 I may have accidentally turned a couple of those into magic smoke in the lab back in school… 🤪

18.02.2025 01:59 — 👍 1    🔁 0    💬 1    📌 0
schematic for the aforementioned mod. just a pair of LM358 inverting op amp circuits with a 22nF bypass cap, 10uF output caps, ferrite beads at the output connector, and a voltage gain of ~6.6 (Rf = 33k; Ri = 4.99k)

schematic for the aforementioned mod. just a pair of LM358 inverting op amp circuits with a 22nF bypass cap, 10uF output caps, ferrite beads at the output connector, and a voltage gain of ~6.6 (Rf = 33k; Ri = 4.99k)

suggested PCB layout for using an SOIC chip and 0603 components

suggested PCB layout for using an SOIC chip and 0603 components

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here's the schematic, it's exactly the same as the model 1's onboard design, just duplicates it for each channel instead of mixing them down to mono.

whole thing fits comfortably into a 23mm x 13mm (0.9in x 0.5in) board if you can do smt soldering.

i can't offer tech support, but have fun 💜

18.02.2025 01:52 — 👍 7    🔁 2    💬 4    📌 0

We are about to accumulate a wealth of data on immunosenescence , oncology , cardiovascular disease , auroimmunity and neurodegeneration.

17.02.2025 21:41 — 👍 11    🔁 2    💬 2    📌 0
A garish metal sign from a cheap factory intended to be used as a kitsch decoration. Artwork in the center is a fox sitting in the snow surrounded by trees. The text around the art says "Once upon a time, there was a girl who really loved foxes. It was me, the end."

A garish metal sign from a cheap factory intended to be used as a kitsch decoration. Artwork in the center is a fox sitting in the snow surrounded by trees. The text around the art says "Once upon a time, there was a girl who really loved foxes. It was me, the end."

16.02.2025 06:50 — 👍 2    🔁 0    💬 0    📌 0
side by side image of detention basins. the left image is labeled “detention basin” and the right image is the same basin but features the Breakfast Club in the middle. it is labeled “saturday detention basin”

side by side image of detention basins. the left image is labeled “detention basin” and the right image is the same basin but features the Breakfast Club in the middle. it is labeled “saturday detention basin”

the Breakfast Club was released 40 years ago today

15.02.2025 21:53 — 👍 424    🔁 64    💬 7    📌 10

The roses are red,
The violets are too…
Your blue and green channels
Are not coming through!

14.02.2025 22:39 — 👍 5    🔁 0    💬 0    📌 0

I just remember "Seattle is rainier than everywhere else"

13.02.2025 07:02 — 👍 1    🔁 0    💬 0    📌 0

... you know, come to think of it, I could probably trade my still-factory-sealed Balto LD for a fursuit, to the right maker 🤔

13.02.2025 07:01 — 👍 2    🔁 0    💬 1    📌 0

Clearly an act of academic impropriety!

12.02.2025 18:48 — 👍 2    🔁 0    💬 1    📌 0

That teacher had been unfair before, and claiming I used foul language was pretty serious, so my parents demanded a private meeting with the principal…

My mother insists my father didn’t raise his voice, but suffice it to say, the school administrators were always kind to me after that incident.

12.02.2025 18:45 — 👍 5    🔁 0    💬 0    📌 0

In 5th grade, I told a kid who insulted me to “shut your big ugly mouth!” My teacher somehow heard “… big fucking mouth!” I was immediately suspended from school for a day and banned from performing in the choral show that week.

12.02.2025 18:39 — 👍 5    🔁 0    💬 1    📌 0
Prince performs in the rain at half time at Super Bowl XLI, Alamy photo

Prince performs in the rain at half time at Super Bowl XLI, Alamy photo

perhaps the best halftime show ever was the one that relied most on efficient storm drain infrastructure. interesting.

09.02.2025 19:50 — 👍 766    🔁 104    💬 12    📌 11

I always chat with our cleaning staff and thank them for their help, they’re an important part of the biological system of The Facility! They frequently speak Spanish, so I slipped into Spanish while sharing the elevator this week and got a surprised “You speak Spanish?!” with gleeful excitement 🥰

08.02.2025 19:39 — 👍 0    🔁 0    💬 0    📌 0

Public facing IPs/ports are just pvp enabled

07.02.2025 17:49 — 👍 4    🔁 1    💬 0    📌 0

... I totally read this, in my head, in the voice of @miniminuteman.bsky.social

06.02.2025 08:24 — 👍 2    🔁 0    💬 0    📌 0

Which shop? Clearly I need to leave the house once every blue moon.

04.02.2025 17:30 — 👍 0    🔁 0    💬 1    📌 0
Post image 01.02.2025 22:01 — 👍 7670    🔁 2891    💬 49    📌 29

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