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@penguin42@mastodon.org.uk
2026-06-21 14:20:26

Pleasantly surprised I can measure this timing difference on my cheap scope; In both cases this is a chain of a pair of inverters in a 74LS04 package; the difference between the two captures is just the length of breadboard wire between the 1st and 2nd inverter; the first is about 1cm and the 2nd is about 20cm; so that's about 0.5ns difference measured which is reasonable - and surprisingly good for a 500MS/s scope.
(The yellow is input from a sig gen, blue is op of 2nd inverter).

An oscilloscope showing two falling edge waveforms. The blue one is delayed by a few ns relative to the yellow. There's some nasty ringing.
Like the other one with some different timings
@marcel@waldvogel.family
2026-06-20 03:17:54

«“If I was going to design a facility to grow algae, I would probably design a facility that had a lot of surface area and was very shallow, so you have sunlight down to the bottom. And put a lot of nutrients in it. And that’s pretty much what the Reflecting Pool is. It’s just a perfect facility for growing algae.” The decision to paint the bottom a deep shade of blue, scientists have told me, raised the water temperature and accelerated the growth.»
Science vs Trump 1:0

Science Has a Name for What’s Plaguing the Reflecting Pool
Testing reveals that efforts to suppress one algal bloom seem to be fueling another.

@seav@en.osm.town
2026-06-19 22:23:12

Happy 5th birthday to #Wordle!
According to Wordle’s stats, I’ve played 1601 times. And because I first started playing on 5 January 2022, I missed playing 26 times.

Screenshot of Wordle’s 5 for 5 Challenge badge featuring a green shield with five haphazardly arranged stars on it and the text “5 Years” at its top, the text “Earned Jun. 19, 2026” above, the title “5 for 5 Challenge” below, followed by the following sentence “You earned this badge by successfully completing all 5 Wordle puzzles from June 15 - June 19, 2026, in celebration of 5 years of the game.” Finally, there’s a button below with the label “View all badges in the Game App”
@leftsidestory@mstdn.social
2026-06-20 00:30:01

The Deity that Struggles ⛪️
挣扎的神衹 ⛪️
📷 Nikon F4E
🎞️ Ilford Pan 400
If you like my work, Support by buying me a coffee or a roll of film from
PayPal paypal.com/paypalme/ydcdingsite
Wise

Ilford Pan 400 (FF) English Black-and-white photograph of a flagpole with a dark flag featuring a star pattern, flying against a cloudy sky. The top of the church facade, including a cross, is visible on the right side of the image. The timestamp "15 34 52" is visible in the bottom right corner. 中文 黑白照片，旗杆上悬挂着一面带有星形图案的深色旗帜，背景是多云的天空。教堂正面的顶部，包括一个十字架，在图像右侧可见。右下角可见时间戳“15 34 52”。
Ilford Pan 400 (FF) English Black-and-white photograph of a grand, classical-style church facade. The building features tall columns, arched windows, and decorative niches with statues. A cross is mounted at the peak of the roof, taken from a lower angle. The sky is mostly clear with some clouds. A flag is partially visible on the right side of the image. The timestamp "15 33 14" is visible in the upper right corner. 中文 黑白照片，展示了一座宏伟的古典风格教堂正面。建筑物有高大的柱子、拱形窗户和装饰性壁龛，壁龛内有雕像。十字架位于屋顶的最高处，从较低角度拍摄，天空大部…
Ilford Pan 400 (FF) English Black-and-white photograph of the church facade, taken from a low angle. The building features a pediment with a cross at the top, columns, and statues in niches. A circular clock is visible below the pediment, with the inscription "DOM IN HON DEIPARAE IMMAC SS JOSEPH EFRAN ASS" beneath it. The timestamp "28" is visible in the top right corner. 中文 黑白照片，从低角度拍摄的教堂正面。建筑物顶部有一个山形墙，上面有一个十字架，还有柱子和壁龛中的雕像。山形墙下方可见一个圆形时钟，其下方有拉丁文铭文“DOM IN HON DEIPARAE IMMAC SS JOSEPH EFRAN ASS”…
Ilford Pan 400 (FF) English Black-and-white photograph of a grand, classical-style church facade. The building features tall columns, arched windows, and decorative niches with statues. A cross is mounted at the peak of the roof. Sunlight creates a strong lens flare effect in the upper center of the image. The timestamp "15 26 51" is visible in the bottom right corner. 中文 黑白照片，展示了一座宏伟的古典风格教堂正面。建筑物有高大的柱子、拱形窗户和装饰性壁龛，壁龛内有雕像。十字架位于屋顶的最高处。阳光在图像上方中央形成强烈的镜头光晕效果。右下角可见时间戳“15 26 51”。
@toxi@mastodon.thi.ng
2026-07-03 11:12:20

07:16 AM
What a morning and long day it was last week! Was already out & about for 3 hours when I got to this place, earlier mostly taking hundreds of images of the nearby (~500m away) Breslauer Hut and vicinity during sunrise... The first large (and loud) group of people already got up at 4AM, getting ready for climbing Wildspitze, another group left an hour later, as did I. Maintenance/repair works on the hut continued at 08:30, taking lots more pictures to document, interviewin…

Photo of a high alpine landscape with three different valleys in bright hazy morning light. In the bottom left corner, still in the shade, a meandering creek is flowing down the rocky hanging valley formed by its former glacier. A small talus field in the sun, next to the path. Further in the distance much larger, deeper valleys, their floor occluded and only the upper sections illuminated. Glaciated peaks along the whole horizon, partially blanked out by intense bright light. Clear blue sky.
A small footpath, surrounded by talus fields, leading into the distance. Behind, on the other side of the invisible valley, some of the immense, imposing, glaciated peaks of the Kreuzkamm, specifically Talleitspitze (3406m) and Kreuzspitze (3455m). Not much is remaining of the formerly grand Eisferner in between these peaks. Clear blue sky.
@leftsidestory@mstdn.social
2026-05-19 00:30:02

The Substance VI 🧪
某种物质 VI 🧪
📷 Nikon F4E
🎞️ Harman Switch Azure (FF)
If you like my work, Support by buying me a coffee or a roll of film from PayPal paypal.com/paypalme/ydcdingsite

Harman Switch Azure (FF) A city skyline at sunset with a warm orange and yellow gradient sky. Several tall, modern high-rise buildings dominate the horizon, with two construction cranes visible among them. The silhouettes of trees frame the bottom right corner. ##中文 日落时分的城市天际线，天空呈现温暖的橙黄色渐变。地平线上矗立着多栋高大的现代摩天大楼，其中有两台建筑起重机清晰可见。右下角有树木的剪影。
Harman Switch Azure (FF) ##English A church with classical architecture, featuring a central bell tower topped with a cross, flanked by statues on either side. The building has a symmetrical facade with arched windows and a set of stairs leading up to the entrance. A tall, modern high-rise building stands to the right, contrasting with the church. The sky is a warm orange, suggesting either sunrise or sunset. ##中文 一座古典风格的教堂，中央钟楼顶部有一个十字架，两侧各有一尊雕像。教堂正面对称，有拱形窗户，台阶通向入口。右侧是一栋高大的现代摩天大楼，与教堂形成对比。天空呈温暖…
Harman Switch Azure (FF) ##English A cityscape at dusk with a warm orange sky. The silhouette of a church with a cross on top is visible in the center, surrounded by various buildings. Brightly lit signs in Chinese characters are visible at the bottom, indicating commercial establishments. ##中文 黄昏时分的城市景观，天空呈温暖的橙色。中央可见一座教堂的剪影，顶部有十字架，周围环绕着各种建筑。底部有明亮的中文招牌，显示商业场所。
Harman Switch Azure (FF) ##English A street scene with a truck parked on the right, covered with a tarp and displaying a sign in Chinese characters that reads "吉县苹果香酥脆甜" (Jixian apples, fragrant, crisp, and sweet). Bags of apples are stacked in front of the truck. A person on a bicycle loaded with large white sacks is in the foreground. The background shows a busy urban street with trees, cars, and pedestrians. ##中文 街道场景，右侧停着一辆覆盖着防水布的卡车，车上挂着中文招牌，写着“吉县苹果香酥脆甜”。卡车前方堆放着多袋苹果。前景中有一人骑着自行车，车上装满大白袋。背景是…
@azonenberg@ioc.exchange
2026-06-07 02:11:55

Just pulled a now empty PDU and tidied up a few cables. Main IT rack is looking pretty good now.
Everything below the 1GbaseT switches (except the PoE injector) is pulling a combined total of just under 1 kW; the rest isn't metered yet.

Front view of a server rack with five 2U servers, a 4U, two half width 1U QSFP28/QSFP+ switches, and three 1.5U 1G switches flanked by lots of decently neatly organized fiber and cat5 cables
Bottom half of the rack showing fiber coming off the switches
Back side of the rack showing power distribution
@chris@mstdn.chrisalemany.ca
2026-06-22 19:29:25

Excited to have grabbed 4 tickets to see the Vancouver Canadians (Single-A affiliate of MLB Toronto Blue Jays). ⚾️🧢
Tickets are cheap! $35ea!
The scary part is travel on August long weekend, and we're making it a day trip from #PortAlberni so busy ferries and other crossing modes are in our future!
Here's the price breakdown for the various transportation modes from #Nanaimo to #Vancouver, return, for 4 adults.
Results are predictable. The spread is wide between walking onto BC Ferries and flying 4 people on a sea plane! The Horseshoe Bay route on BC Ferries has a premium right now because of construction but it's actually shorter transit time to/from Vancouver from Tsawassen anyway.
My only worry about walking on the ferry is there might not be day parking at the terminal in the middle of a long weekend!
🛟✈️SeaAir: $1148 $21.60 transit $15 parking‎ = $1183
🛟✈️ HarbourAir: $734 $21.60 $15‎ = $770
🛟✈️ 🚤Air Hullo Special: $604 $21.60 $15= $640
🚤 Hullo Only: $372 $21.60 $15= $408
⛴️🚙BCFerry Car Tsw: $243.40 $10 parking = $253
⛴️🚙 BCFerry Car HsB: $326.35 $10 = $336
⛴️🚎BCFerryWalk HsB: $155.20 $21.60 $15=$192
⛴️🚎 BCFerryWalk Tsw: $130.00 $21.60 $15=$166

@leftsidestory@mstdn.social
2026-07-14 01:36:54

Inside Outside V 🔲
中间 V 🔲
📷 Pentax MX
🎞️ Fujifilm Neopan F, expired 1993
If you like my work, Support by buying me a coffee or a roll of film from
PayPal paypal.com/paypalme/ydcdingsite
Wise

Fujifilm NEOPAN F (FF) English A black-and-white photograph showing a person sitting alone on a glass-railed balcony or terrace. The individual is positioned on the left side, facing slightly to the right, and appears to be looking down or at something in their hands. In the background, a tall, modern building with a grid-like facade is visible under a bright, overcast sky. 中文 一张黑白照片，展示了一个独自坐在玻璃栏杆阳台或露台上的人。该人物位于左侧，略微向右转身，似乎在低头或查看手中的物品。背景中，一幢带有网格状立面的现代高层建筑在明亮的阴天下清晰可见。
Fujifilm NEOPAN F (FF) English A black-and-white photograph featuring a religious statue of a robed figure holding a cane. The statue stands on a pedestal, with a flagpole to its right flying a flag. In the background, there are tall buildings, including one with a grid-like facade, and trees framing the scene. 中文 一张黑白照片，展示了一尊手持木杖身着长袍的宗教人物雕像。雕像立在基座上，右侧有一根旗杆，悬挂着一面旗帜。背景中有高层建筑，其中一幢建筑带有网格状立面，还有树木点缀着场景。
Fujifilm NEOPAN F (FF) English A black-and-white photograph capturing a traditional Chinese temple roof with intricate carvings and statues of figures lined up along the ridge. In the background, modern high-rise buildings are visible, and a flag with a star design is flying on a flagpole to the right of the temple roof. 中文 一张黑白照片，拍摄了一个传统中国寺庙的屋顶，屋脊上排列着精美雕刻和多尊人物雕像。背景中可见现代高层建筑，寺庙屋顶右侧的旗杆上悬挂着一面带有星形图案的旗帜。
Fujifilm NEOPAN F (FF) English A black-and-white photograph showing a network of overhead power lines or cables against a cloudy sky. Below the lines, the tops of several tall, modern buildings are visible, creating a contrast between the industrial elements and the urban architecture. 中文 一张黑白照片，展示了在多云天空下的架空电线或电缆网络。电线下方可见多幢现代高层建筑的顶部，形成工业元素与城市建筑之间的对比。