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Brenor

@brenorbrophy.com.bsky.social

Retired renewable energy engineer, amateur geologist, hiker, & backpacker. Reared in Ireland, reside in California.

471 Followers  |  341 Following  |  491 Posts  |  Joined: 07.02.2024  |  1.7626

Latest posts by brenorbrophy.com on Bluesky

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How to Remove AI From Your Google Chrome Experience - Opus Follow these steps to resist the AI-pocalypse in your everyday web browsing.

so Google just added a bunch (more) AI bullshit to Chrome

Go through these steps to disable it:

opus.ing/posts/how-to...

#chrome #aibullshit

11.10.2025 00:05 β€” πŸ‘ 1437    πŸ” 1059    πŸ’¬ 39    πŸ“Œ 47
Large concrete statue of a priest with his right arm outreaching and pointing.

Large concrete statue of a priest with his right arm outreaching and pointing.

This statue of Junipero Serra, Spanish missionary, Catholic saint and a major participant in the subjugation and genocide of the native California peoples, has been removed and destroyed by Caltrans. Erected with private money on public land in the 1970s, I for one shall not miss it.

#sanfrancisco

03.10.2025 20:47 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Reposting this Permian trackway in #Canyonlands NP for #FossilFriday in the hope that somebody knows something about it.

βš’οΈπŸ§ͺ

19.09.2025 13:41 β€” πŸ‘ 11    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
View upwards from the river of two large slabs of what appears to be sandstone. Each have a striking fossil trackway from a terrestrial creature, perhaps 20-30cm wide.

View upwards from the river of two large slabs of what appears to be sandstone. Each have a striking fossil trackway from a terrestrial creature, perhaps 20-30cm wide.

A closer view of the slabs.

A closer view of the slabs.

A spectacular trackway in the Permian Organ Rock formation of Canyonlands NP. On the Green River, just downstream from The Turk's Head, river-left. I'd guess it's 20-30cm wide, but hard to judge at the distance. Amazing how the slabs are just sitting on display. Anybody know anything about it?

πŸ§ͺβš’οΈ

16.09.2025 02:23 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 2

Yes, I just based my estimate on the 880,000 kWhr production figure given for the plant

25.08.2025 14:49 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's about the same amount of energy as you would get from a 400 kW solar plant, which would be a little less than 2 acres or about 8000 m2 in area.

25.08.2025 04:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A view looking down from clifftop to a calm sea. Dark vertical cliffs on the right reach out to a sea arch. Atop the cliff is a small white lighthouse with a metal suspension bridge extending back towards the viewer. A grey overcast sky above

A view looking down from clifftop to a calm sea. Dark vertical cliffs on the right reach out to a sea arch. Atop the cliff is a small white lighthouse with a metal suspension bridge extending back towards the viewer. A grey overcast sky above

The beautiful Point Bonita on the Marin Headlands at the entrance to the Golden Gate and San Francisco Bay.

Check out the dark basalt cliffs and the pillows in the arch. They almost look like they erupted yesterday.

βš’οΈπŸ§ͺ #seascape #photography

23.08.2025 16:10 β€” πŸ‘ 14    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
A small flotilla of sail boats passes under the Golden Gate bridge on a clear blue day.

A small flotilla of sail boats passes under the Golden Gate bridge on a clear blue day.

For fans of wooden sailing boats the famous Tally Ho arrived in San Francisco today on her way back to the UK from Washington.

#sailing #tallyho #sf

18.08.2025 22:43 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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The Business Case for Hydrogen This is a short summary of the comments I made at RE+ 2022 on a panel about the business case for hydrogen. A good place to start a discussion of hydrogen is to step back, look at the big picture, and...

This is a LinkedIn article I wrote three years ago that briefly tries to give that bigger picture view of why we need green hydrogen.

18.08.2025 14:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

When you contemplate what it will take to replace the fossil fuel infrastructure that underpins our current standard of living with renewables, you realize that 80% of our energy is delivered as molecules and those storage and transport networks can't be entirely replaced with wires.

18.08.2025 14:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I was referring to hydrogen generated from renewables. Zero carbon means everything runs on wind & solar - you have to have a way to couple that to ALL sectors of the economy. Hydrogen is a way to do that in many sectors - you can't make steel, cement or plastic from batteries for example.

18.08.2025 14:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Hydrogen is a fine way to generate power, a fuel cell is as efficient as the most efficient combined cycle gas generator with zero emissions. But really it is just one tool in the toolbox for a zero carbon economy. Batteries and hydrogen have different strengths and weaknesses, you need both.

18.08.2025 13:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A raven perched on a rock at the summit of Carrauntoohill mountain.

A raven perched on a rock at the summit of Carrauntoohill mountain.

I met this chap at the top, it all felt a bit mythical.

13.08.2025 13:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A conical shaped peak with a wisp of cloud makes the horizon. A grass and gourse covered rocky slope in the foreground with a winding path. A blue sky above.

A conical shaped peak with a wisp of cloud makes the horizon. A grass and gourse covered rocky slope in the foreground with a winding path. A blue sky above.

Carrauntoohill, highest mountain in #Ireland at just over 1000m. An awesome though strenuous hike, the views from the top on a clear day are more than worth it.

#photography #landscapes

13.08.2025 13:42 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The LLMentalist Effect: how chat-based Large Language Models rep… The new era of tech seems to be built on superstitious behaviour

Modern AI tools emulate the classic con-man tricks of mentalism, tricking people into believing that they’re far more clever - and sapient - than they actually are.

Fantastic piece by @baldurbjarnason.com :

softwarecrisis.dev/letters/llme...

12.08.2025 13:49 β€” πŸ‘ 1083    πŸ” 451    πŸ’¬ 36    πŸ“Œ 77
The gentle curve of a long sandy beach hooks around. Sand dunes on the right, calm sea on the left, an almost clear blue sky above. Some scattered people in the mid ground.

The gentle curve of a long sandy beach hooks around. Sand dunes on the right, calm sea on the left, an almost clear blue sky above. Some scattered people in the mid ground.

The coast of #Ireland had a vast number of beautiful, unspoiled and almost empty beaches. Here is the spectacular Kilmore Quay in County #Wexford on one of the nicest days of the summer so far.

#seascapes #photography

12.08.2025 13:45 β€” πŸ‘ 41    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
A view looking down from a small cliff onto a rocky outcrop at the water's edge. In the center, a flat rock surface has a poliginal pattern that are fossilized dessication cracks. Brown seaweed covers many of the rocks and floats in the water.

A view looking down from a small cliff onto a rocky outcrop at the water's edge. In the center, a flat rock surface has a poliginal pattern that are fossilized dessication cracks. Brown seaweed covers many of the rocks and floats in the water.

The rocks below the Broch of Gurness in #Orkney are wet and seaweedy today, but 390ma they were a dry lakebed with dessication cracks. Mapped as the Rousay Flagstones, these sediments record many cycles of fluctuating levels in Lake Orcadie during the Devonian.

#geology #seascapes

10.08.2025 21:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A slab of rock with vertical bedding showing soft sediment deformation. A hand is provided for scale.

A slab of rock with vertical bedding showing soft sediment deformation. A hand is provided for scale.

A zoomed out picture of the outcrop showing it to be a Neolithic standing stone.

A zoomed out picture of the outcrop showing it to be a Neolithic standing stone.

A lovely example of soft sediment deformation in Devonian lake sediments on #Orkney. The vertical bedding is due to Neolithic inhabitants erecting this fine geological example as one of the Stones of Stenness.

#geology

07.08.2025 12:52 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Totally go out on a limb here and predict he won't even get a nomination let alone win.

25.07.2025 12:07 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Extent of Nankoweap paleolake in Marble Canyon showing river miles below Lees Ferry. (A) Stanton’s Cave; (B) Crystal Cave; and
(C) RM 35.5 alcove; dated driftwood at star. (D) Impact at Meteor Crater and resulting ∼M3.5 ground motion at Nankoweap Canyon. (E) Flyover
image of Meteor Crater derived from digital elevation model (Kring,

Extent of Nankoweap paleolake in Marble Canyon showing river miles below Lees Ferry. (A) Stanton’s Cave; (B) Crystal Cave; and (C) RM 35.5 alcove; dated driftwood at star. (D) Impact at Meteor Crater and resulting ∼M3.5 ground motion at Nankoweap Canyon. (E) Flyover image of Meteor Crater derived from digital elevation model (Kring,

A nice "It's all connected!" of the type we like in Earth Sciences. The Barringer Meteorite Crater impact in Arizona might have triggered landslides in Grand Canyon, blocking the Colorado River and forming a rather long and narrow lake for a while. πŸ§ͺβš’οΈ

Link: pubs.geoscienceworld.org/gsa/geology/...

23.07.2025 14:01 β€” πŸ‘ 37    πŸ” 10    πŸ’¬ 0    πŸ“Œ 2

They can only remember RocketLab, were there even any others? πŸ˜€

23.07.2025 15:07 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The Colorado River used to be predictable as a water supply. What happens when it's not? As Colorado River states race to finish a deal, water users face a resource altered by drought and climate change.

www.azcentral.com/story/news/l...

21.07.2025 19:52 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

John Fleck writes on how the glimmering hopes of an interstate agreement on new allocation rules for the Colorado River, have dimmed.

If you care about the fate of Glen Canyon, Grand Canyon, or the Colorado River, then this year is edge-of-your-seat stuff.

17.07.2025 22:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In 1847, at the height of the Irish potato famine, the Choctaw donated US$170 to the Irish people, not long after themselves having endured the Trail of Tears. The Irish did not forget, in 2020, they were among the highest per-capita donors to the Navajo and Hopi Nations for COVID relief.

17.07.2025 18:43 β€” πŸ‘ 12    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
Electric blue wispy clouds in the night sky. A reddish line across the horizon, dark below.

Electric blue wispy clouds in the night sky. A reddish line across the horizon, dark below.

Spectacular noctilucent clouds high over Hudson Bay. I saw them about the same time last year, it seems like they are becoming more common. Tiny ice crystals right at the edge of space.

#photography #noctilucent #cloud #weather

15.07.2025 13:12 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
A wooden and stone building engulfed in flames.

A wooden and stone building engulfed in flames.

This is so sad, the loss of the Lodge on the North Rim to the Dragon Bravo fire. I was there just last September, such a beautiful place. At least there were no injuries or lives lost. But I can't help feeling it will take a long time to recover. The picture below was posted to Reddit.

#grandcanyon

13.07.2025 22:31 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

While the tech is simple, the economic decision is not, and it's on the order of a new car. The question of "how big a system do I need?" is non-trivial. The interaction of Utility tariffs, export compensation, and system design on payback is something you could make a feature length video about.

13.07.2025 22:26 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

California's Bristle Cone Pines would like to enter the chat.

12.07.2025 19:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I assume it's like the $1/Watt target we had for solar around 2007. At the time it seemed pretty aggressive but was where we thought we had to get to. Of course the industry blew right past it faster than anybody anticipated. Not sure that will happen with CDR πŸ˜€

11.07.2025 18:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Interesting, thanks. Given the dire state of the Colorado it seems inevitable that the lower basin will eventually have to accept curtailment of deliveries from the upper basin, sr. rights or not. At that point solar may simply be the only and best use of the land they are forced to fallow.

07.07.2025 23:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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