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Posts by Ryan J Hollister

Video

This video shows how seismic waves from the M7.4 earthquake in Japan were detected across North America and Europe.

These ground motion visualizations are created by the @earthscope.org

19 hours ago 91 32 5 0

It was a stunningly perfect day all around.

8 hours ago 1 0 0 0
The Irrigationist
The Irrigationist YouTube video by Turlock Irrigation District

Historically, way harder to dig and maintain a tunnel in soft Central Valley sediments than it was to use Fresno scrapers other steam/horse powered tools to make ditches that had a gradient of about .25”/mi. It’s way more cost effective too. Here’s our TID history.

youtu.be/KWZ3Y7pboRA?...

8 hours ago 6 1 0 0

I definitely was owed a good one. The other prof is going tomorrow and they just shut down 140 again due to impending rain potentially reactivating small rockfall. 😬😬

9 hours ago 1 0 1 0

This segment went up quickly and is already generating electricity across a wide span of canal. It also includes enough vertical clearance to accommodate a small backhoe, as requested by the canal maintenance team.
#SolarCanals💧☀️🔌💡

9 hours ago 98 23 4 0

“I’m a one issue voter. Punishment.” is also how I view every election from now until 2028.

12 hours ago 25 3 2 0
Preview
Fast-tracking US critical minerals could backfire without safeguards, Oxfam warns A central concern is that compressing timelines could undermine the very stability the US is seeking.

I have been thinking about this lately, so it’s nice to see an article about how fast tracking mineral projects in the US may end up actually slowing or stopping projects all together as mining companies risk their “social license to operate”

www.mining.com/fast-trackin...

1 day ago 16 5 2 1
Preview
Daniel Swain Climate Scientist Berkeley Climate Change Network · Episode

Talking weather and climate with with Daniel Swain, @ucanr.edu climate scientist: A conversation regarding the record-smashing warm month of March for the western U.S. and what it means for the region going forward.

16 hours ago 54 10 1 0

While we had lunch and Q&A session about anything and everything related to what we were observing, I made a timelapse of clouds screaming overhead. Definitely seem to have been *orographically influenced and boy did they make for a perfect day. (LOL original post said organically).

11 hours ago 19 1 0 0

Well, if you come up when we’re available we can show you around! But your companies I don’t know much about.

14 hours ago 2 0 1 0
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Extra meh

15 hours ago 2 0 1 0
north dome rises above the Royal Aches as short cirrus clouds move from S to N.

north dome rises above the Royal Aches as short cirrus clouds move from S to N.

It is an 11/10 day here in Yosemite Valley, unbelievably. Here, north dome rises above the Royal Aches as short cirrus-like clouds whisp from S to N. The crowds are LIGHT. Mondays are RAD.

16 hours ago 85 8 6 1

😢 it seems Tui had a life well-lived with you. My condolences.

1 day ago 3 0 1 0
Video

Process of the Artemis II Earthset Plate

Thanks for following this body of work, it was an inspiring project for me!

#sciart

1 day ago 1007 295 23 12

It's probably worth noting we can now consistently run seismometers off of solar and batteries for the entire year in Alaska.

We don't use particularly fancy stuff to do that and it wasn't really reliably possible to do that like 10-15 years ago....

1 day ago 31 4 2 0
Video

One ocean 🤝 One great T-shirt.

Your purchase of the “Our Ocean Planet” tee not only supports marine research—it also directly supports ocean conservation!

For every shirt sold, its maker, Relic, will fund 30 water-filtering oysters with the Moriches Bay Project.

Get yours: go.whoi.edu/RelicSale

1 day ago 21 3 0 0
Preview
Unusually active April weather pattern to continue this week, and possibly beyond, as subtropical northeastern Pacific waters reach record warmth - Weather West April 19, 2026 - Daniel Swain - Milder temperatures in April than March, with much more precipitation; snowpack, however, remains extremely low What a strange Water Year it has been in 2025-2026! We started the WY with record rainfall during Oct-Dec across much of the central and south coast, including the wettest Oct-Dec period ever observed in Santa Barbara, Ventura, Kern, and #

New Weather West post out this evening: "Unusually active April weather pattern to continue this week, and possibly beyond, as subtropical northeastern Pacific waters reach record warmth."

1 day ago 120 36 2 2

While Bill Watterson may be the philosopher of our age, Gary Larson is its prophet

1 day ago 172 36 4 2

They are EVERYWHERE at the moment. I’ve already seen three at Don Pedro the past few weeks.

1 day ago 7 0 1 0
A hand holding a gray fine grained rock with some plagioclase phenocrysts and a tan weathering rind. In the background is an ominous but blurry mountain

A hand holding a gray fine grained rock with some plagioclase phenocrysts and a tan weathering rind. In the background is an ominous but blurry mountain

Welded tuff of La Reforma volcano, with the source in the background ⚒️

1 day ago 77 5 1 0
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Amazing turnout for our Day of Action to Save NASA Science! Truly inspired by the dedication of our members and advocates who are here with me in D.C.

1 day ago 121 26 2 1
Very lumpy looking sample of a dark mineral or rock about 3 inches across.

Very lumpy looking sample of a dark mineral or rock about 3 inches across.

Some people special to me donated their lifelong collection of rock and fossils to the department. One item stood out... I've never held one and rarely seen one for sale. Can any of my geology friends identify it, and explain why it's important in our science?

2 days ago 69 9 11 1

It was by our Ivy and cornered by our dog and cat apparently.

1 day ago 3 0 0 0

You know what’s really awesome*? @xenolith.bsky.social shouting at me excitedly to “come see this!” while walking through house with a 5gal bucket. I thought it was going to be a rock or dirt or something. But no. It was a live gopher. *It scared the shit out of me because I was expecting a rock.

1 day ago 37 1 4 0
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a boy wearing goggles is playing with two bottles of diet coke ALT: a boy wearing goggles is playing with two bottles of diet coke
1 day ago 1 0 0 0

No argument from me!

1 day ago 0 0 0 0

I’m glad history doesn’t repeat itself.

1 day ago 2 0 0 0
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As some folks have mentioned it appears GC was never went to metered reservations like many other popular natl parks (including Yosemite). But… point still stands that NOS defunding and layoffs won’t improve an already terrible situation.

1 day ago 9 1 1 0

Totally, and Yosemite was like that too until it implemented metered entrance for several years before discontinuing it this year. I had thought GC was on the formerly metered list too.

1 day ago 3 0 2 0

Yeah, I think you’re correct. I swear I remember reading they also metered like Yosemite and a few other parks.

1 day ago 1 0 1 0