Living Impressions - Planetary Alignment - 28.02.25 4k (1)

Living Impressions - Planetary Alignment w ID - 28.02.25

Photographer: Rui Santos

Summary Author: Rui Santos

The night sky and planetary alignment featured above was captured from Pinhal de Leiria, Portugal on February 28, 2025. I decided to view the alignment from here because I knew I'd have a clear view of the horizon. Since the planets were stretched out across the sky, I had to do a panorama and try to avoid light pollution (lower left and lower right) from surrounding cities and towns. Venus, Jupiter, Mars and Uranus are included above, but because I wasn't able to arrive as the Sun was setting, Saturn, Neptune and Mercury aren't in the frame.

At bottom center is the Crastinha Lookout Point, one of several watchtowers in the Forest of Leiria. The building to its right is the reconstruction of what used to be the guard's house, dating from 1883. This tower is still in use today.

Photo Details: Panorama of 4 panels x 10 photos on each panel; Sony A6000 camera; Samyang 12mm F2; 40 x 20 seconds exposure; 6400 ISO; F2.8; 8:16 pm local time. Tripod: Geekoto AT24Pro Dreamer + Andoer Q08S Rotating Head. Processing: PTGUI, Lightroom, Photoshop, RCplugins, Luminar.
 
 
 
Pinhal de Leiria, Portugal Coordinates: 39.8317, -8.9703
 
Related Links:
 
 
 
purplecat: The family on top of Pen Y Fan (General:Walking)
([personal profile] purplecat Jun. 25th, 2025 06:55 pm)
Then Wilbert showed us around Machu Picchu.

Photos )

The story of Machu Picchu, as Wilbert told it to us, was that it was under construction as a district capital when the Spanish arrived. Intimating that things were going badly with the Spanish, the Inca moved 700 people and all their gold from their capital of Cusco along the Inca trail to Machu Picchu, destroying the roads behind them with landslides. They remained there for 80 years but were aware that the Spanish, in search of the gold, were getting closer aided by a generation of half-Peruvian, half-Spanish collaborators. After 80 years, therefore, they hid the gold in the surrounding hills and some moved back towards Cusco where they were captured by the Spanish and others moved east into the Amazon where their descendents were briefly encountered by archeologists in the 1970s. The Spanish eventually reached Machu Picchu but found no gold. This story does not appear anywhere else I've looked (but, as noted, information at the level of detail I'm accustomed to for historic sites is much harder to find for Machu Picchu), but it wouldn't surprise me if it isn't the legend as told among the local Andean people.
([syndicated profile] epod_feed Jun. 25th, 2025 12:01 am)

Menashe_epod_roots_Picture1

Menashe_epod_roots_Picture2

Photographer: Menashe Davidson

Summary Author: Menashe Davidson

The plant kingdom is distinguished from other kingdoms of life by its attachment to a fixed location throughout the plant's life cycle. To survive, plants must develop unique mechanisms that help them adapt to their environment. Unlike cultivated plants whose location and growing conditions are determined by humans, other plants establish themselves where their seeds fall on a suitable substrate for germination and development. Once on the surface, their survival depends on their ability to anchor into the soil at the point of germination, ensuring access to essential nutrients and moisture while also gaining protection from external threats.

I observed this remarkable adaptation in daffodil (Narcissus) plant tubers in my home garden in Rishon LeZion, Israel. After pulling the tubers from the soil at the end of the flowering season (March of 2025) to store them for the next growing cycle, I noticed two distinct types of roots at the base of the corm. The first type consists of normal fibrous roots that develop as shoots grow. The second type, known as contractile roots, is a thicker, layered structure that actively pulls the corm more profoundly into the soil. This contractile phenomenon occurs as the roots undergo cycles of expansion and contraction, effectively repositioning the corm to an optimal depth for growth, protection, and environmental stability. Note that the bottom photo shows the structure and development of a young corm.

 

Rishon LeZion, Israel Coordinates: 31.95 34.8

Related Links:

The Contractile Roots of Narcissus

Roots

 

purplecat: The Tardis against a sunset (or possibly sunrise) (Doctor Who)
([personal profile] purplecat Jun. 24th, 2025 06:40 pm)
Two Doctor Who companion outfits for your delectation and delight! Outfits selected by a mixture of ones I, personally, like; lists on the internet; and a certain random element.


Outfits below the Cut )

Vote for your favourite of these costumes. Use whatever criteria you please - most practical, most outrageously spacey, most of its decade!

Voting will remain open for at least a week, possibly longer!

Costume Bracket Masterlist

Images are a mixture of my own screencaps, screencaps from Lost in Time Graphics, PCJ's Whoniverse Gallery, and random Google searches.

3 b Rocks

Single

This EPOD was first published December 1, 2020

Photographer: Stan Wagon

Summary Authors: Stan Wagon

South-central Utah is known for its striking sandstone hoodoos, with the most famous ones consisting of Entrada Sandstone capped by Dakota Sandstone. The angular towers seen here are unusual in that they consist entirely of Navajo Sandstone. These three, including the one that's very delicately balanced (far right and below), were formed when differential erosion occurred at irregular rates due to variability of content and hardness in the various strata; the more resistant rock remains when softer material is removed. Photos taken October 21, 2020.

Photo Details: Camera: Sony A6500 digital SLR; E 16-70 lens. Top - 1/400 sec, ƒ/10 aperture, ISO 160, focal length 20 mm (29 mm at traditional full-frame 35 mm camera). Bottom - 1/640 sec., ƒ/10 aperture, ISO 250, 19mm (28 mm at full frame 35 mm camera).

[2/25]

purplecat: The family on top of Pen Y Fan (General:Walking)
([personal profile] purplecat Jun. 23rd, 2025 07:16 pm)
Day 4 started at 3:30am in the morning because we were supposed to meet up with the rest of our party at 11am at Machu Picchu which was about 14km away. Most of the rest of the camp got up and set out around the same time for reasons that were less clear to me - maybe the general plan is to get to Machu Picchu before lunch and then spend the afternoon in the city.

Anyway, this meant the first hour of the walk was in the dark going down steep steps with head torches which, once the novelty had worn off, wasn't much fun. We were, presumably, missing some stunning views.

The first ruin of the day was Intipata. This involved a slight diversion off the Inca road itself. According to Wilbert no one had even known it was there until a forest fire about 25 years ago. It's a bit difficult to convey it in photographs, especially as we don't seem to have managed to take any which have any people in for a sense of scale. It was huge, each individual terrace rising above our heads. As far as one can tell, it was a farm.

Photos under the cut )

We then went to Wiñay Wayna which was very similar except that Wilbert insisted it was a laboratory not a farm. We had previously seen another Inca "Laboratory" at Moray but were somewhat confused by the distinction. Laboratories, we were told, were convex while farms were concave. The convex shape caused microclimates at each terrace and you could see different plants were grown on each terrace so it was obvious that the Inca's were experimenting. B. and I felt a frew crucial steps were missing here for something to be called an experiment, as opposed to growing things where they grow best. I was actually getting rather tired at this point so I just sat down and admired the view at Wiñay Wayna, while B. walked down to look at the buildings disturbing some Llamas who were grazing on the terraces.

More Photos )

Wiñay Wayna was right by a campsite of the same name. It was currently out of use following landslides but was, apparently, where people normally spent the final night on the trail. Having left us to explore Wiñay Wayna, Wilbert sat down and chatted to the various guides and porters working at the camp. When we got back he reported that several other parties had gone past, none going to look at the ruins... which again seemed rather odd. I guess for a lot of poeple the Inca Trail is about the walk and then Machu Picchu and not so much about the less well known ruins along the way.

Once past Wiñay Wayna, we left the controlled part of the Inca Trail. At that point I half expected to start seeing day trippers up from Machu Picchu but we never passed anyone going the other way. Wilbert said this was because day trippers were lazy (Wilbert considered many people lazy, including anyone who spoke Spanish in preference to Quechua) but I would have thought quite a lot of people would like to walk along a bit of an Inca road without necessarily doing so for four days and going over Dead Woman's Pass.

Anyway, we continued for another 5 or so km, mostly on the flat but rising slightly until we came to a set of steps that Wilbert cheerfully informed us were called the "Gringo Killer". He had my measure by now and offered to take my sticks while I clambered up.

Evidence under the Cut )

Then we turned a corner and came out at Inti Punku, the Sun Gate, the ceremonial entrance to Machu Picchu. This is where you get your first glimpse of the city.

Photos )

I'll leave Machu Picchu to another post. We were half an hour "late", but Wilbert had a back-up plan which involved showing us around himself and we bumped into the rest of the party during the tour. I was a little frazzled when we got there - a combination I think of the early start, a fairly long walk and the fact my esim wasn't working so I was out of WhatsApp contact from our other guide and so couldn't coordinate meeting up (I eventually managed to contact him via B's phone). But once I'd sent the WhatsApp message and had something to eat, I cheered up enough to enjoy the city.

I felt even better after a bus ride down to Aguas Calientes and a late lunch.

Evidence of Lunch )

The-extremes-of-nature-fire-and-ice-on-mount-etna

Photographer: Roberta Calabrese

Summary Author: Roberta Calabrese

The incandescent lava shown above, being cooled here by a thick layer of snow, was captured on Mount Etna one day this past winter. This lava flow reached the level of the Altomontana Trail (6,135 ft or 1,870 m), where it slowly advanced through the snowpack, setting several trees on fire. Note that Etna has perhaps the longest documented records of volcanic eruptions on our planet. They date back some 3,500 years, to approximately 1500 BCE. Photo taken on February 16, 2025.
 
Photo Details: Taken with Xiaomi Redmi 11 Pro camera; 6mm lens; 1/8 second exposure; f1.9; ISO 50.
 
 
 
Mount Etna Coordinates: 37.7510, 14.9934
 
Related Links:
 
purplecat: Gif of running "pointy sauruses" (General:Dinosaur)
([personal profile] purplecat Jun. 20th, 2025 06:35 pm)

A fossil skeleston of what appears to be a bipedal dinosaur with a long tail, longish neck and sharp teeth.
Dilophosaurus. Image stolen from Great Dinosaur Discoveries by Darren Naish, though wikipedia is using a very similiar image under a Creative Commons licence.
([syndicated profile] epod_feed Jun. 20th, 2025 12:01 am)

Stonehenge  Venus and the Moon

Photographer: Chris Kotsiopoulos

Summary Author: Chris Kotsiopoulos

Shown above are Venus and the elusive Mercury, as well as the Moon, over prehistoric Stonehenge. Capturing this planetary conjunction was the result of careful planning, along with a touch of luck, as I was treated to a beautiful sunset. Mid-level clouds not only produced the fiery sunset but also yielded the distinctive corona about Venus (top center). Note that both the Moon and Venus are in their crescent phases. Photo taken on March 1, 2025. 

 

Stonehenge, U.K. Coordinates: 51.1789, -1.8262

Related Links:

Stonehenge

Chris' Website



 

purplecat: The family on top of Pen Y Fan (General:Walking)
([personal profile] purplecat Jun. 19th, 2025 07:31 pm)
Unlike Day 2, which was hard work and not terribly rewarding, we loved Day 3 on the Inca Trail. Once again we set off almost as soon as it was light. Wilbert's plan was again to have all the walking done before lunch, in part because of convenience, but this time he also knew there were a lot of ruins to see and was quite keen to get us to them before everyone else got there. In this he was successful. We generally got to look around ruins on our own, but a big group would arrive just as we were leaving.

The first of these was Runkuraqay which Wilbert described as a fuel station for people, which we interpreted as meaning an Inn.

Runkuraqay Pictures )

We then went up and over a pass, a little lower than Dead Woman's Pass the previous day, and a shorter climb because we'd started higher. Then we came down towards Sayacmarca, a much larger ruin.

Pictures )

Once we left Sayacmarca we continued down to about 3,500m. After that the trail was much more level. Strava shows a steady climb, but I felt much more able to look about me at the scenery rather than paying close attention to where I was putting my feet. As the trail levelled out we got to Qunchamarka, another Inn. It wasn't clear how to access this, but we walked around the outside. I think at this point we were up in a Cloud Forest - though I'm hazy on the difference between Cloud Forest, Rainforest and regular forest, all of which I think we walked through at various points.

Pictures )

Wilbert spent some time telling us about the Inca Tunnel we would meet. B was pretty sure this was just a large fallen rock which the Inca's had run the path under. Wilbert got distracted at this point since he found a dog in the brush above the tunnel. After some encouragement he got it to climb down and it ran off down the path ahead of us. We met it again at the next campsite where, presumably, it belonged. I'm afraid we failed to photograph the dog, so you'll just have to imagine it.

B did photograph the tunnel, however )

We arrived at our campsite in good time for lunch. The camp was above another Inca ruin, Phuyupatamaca, and after lunch Wilbert packed us off to take a look at it on our own. This involved going down some steep steps and it seemed like the water source for the camp was at the bottom, because we were passed by a lot of porters carrying water back up them. At the time we assumed he sent us to look at it then, rather than the next day, because the plan was to leave before light so that we would get to Machu Picchu in time to meet up with the rest of our group. However it transpired that pretty much everyone was leaving before light and we seemed to be the only party who's guide thought to encourage us to check out the ruins we would miss in the dark.

Pictures of Phuyupatamarca )

We had an excellent position in the camp right next to a large rock that overlooked the view. We were next to the camp of a group of three people who were on the "Luxury" tour. Wilbert was very contemptuous - they had three guides and a masseuse. They were also served cocktails in glasses made of glass when they reached camp. The most disconcerting thing was that they were played into camp by Andean pipes. B felt he would have been quite happy with the cocktails and the larger tents (including a shower tent!) and so on, but felt he wouldn't have coped with the pipes.

Pictures in the Camp )
([syndicated profile] epod_feed Jun. 19th, 2025 12:01 am)

DSC_1033

PhotographerBrian Sauls

Summary Author: Brian Sauls

Petrified Forest National Park, in east-central Arizona, is a geologic wonderland that's well known for its beautifully preserved ancient and extinct petrified conifer trees. Over 200 million years ago, during the Triassic Epoch of the Mesozoic Era, the present park area was situated near the equator in a humid and sub-tropical environment on the ancient supercontinent Pangaea. Over time, Pangaea split apart with each subcontinent eventually drifting to their current positions.

During the Late Triassic, fallen trees were periodically washed into river channels and quickly buried by sediment containing volcanic ash. The ash contained silica, which leached from the overlying sediment and slowly replaced the organic tree cells with the mineral quartz. This slow process ultimately petrified the wooden trees into quartz logs. Iron and manganese impurities within the quartz create a variety of colors within the petrified wood, including red, yellow, purple, brown and black. Most of the petrified logs exhibit their original external form, but only a small portion retains their internal cell structure, which can be observed through a microscope.

The park area continued to be buried under thick layers of sediment over the next 150-plus million years, which eventually became lithified into rock. Beginning around 60 million years ago, the Earth’s tectonic forces uplifted the crust in the park area to approximately 10,000 feet (3,048 m) above current sea level. Erosion of the uplifted area from running water over time exposed the petrified wood and formed the breathtaking scenery we marvel at today. Photo taken in October 2014.

 

Petrified Forest National Park, Arizona Coordinates: 35.0659, -109.7820

Related Links:

Petrified Forest

Petrified Wood or Not



 

azurelunatic: Vivid pink Alaskan wild rose. (Default)
([personal profile] azurelunatic Jun. 18th, 2025 09:31 pm)
* Shelves are fairly well stuffed. The other brackets have arrived, so we can go get more boards and tiny hardware at our convenience.
* There is now Shelf in the living room. Things are going in it.
* Household tidying progresses.
* Today I filled boxes for 13 weeks of my morning and evening pills. It feels like it took less time than usual, but I think that's a trick of the light. I think I usually start later in the day, and keep going until it's dark. It took about four and a half hours; I try to allocate at least 5.
* This means that I've got pills packed until sometime in September. Go, me?
* Juneteenth is tomorrow!
* Turns out that being a director at a certain kind of non-technical organization means that you spend evenings face-down in the user interface level of a misbehaving database. I am chockablock with sympathy.
* Yellface is adorable, and likes to spend the part of the day when I'm awake but still in bed sitting on my legs.
* Had games and pizza with friends last week; they've got a young-ish teeneager placed with them right now. She wasn't up for games but she did appear to fill her water bottle. Luna-cat is very curious about new people and apparently charged her, which was off-putting. I faded early.
* I got some new bras; I'll have to add pockets but the test wear was promising!
* Nobody told me about the dragons in The Priory of the Orange Tree, everyone just mentioned the lesbians.
* There's a new serial at [personal profile] the_comfortable_courtesan!!!
Tags:
purplecat: The family on top of Pen Y Fan (General:Walking)
([personal profile] purplecat Jun. 18th, 2025 07:15 pm)
Day 2 on the Inca Trail was the least fun of the trip. We had to climb 1,200m to get up and over "Dead Woman's Pass". Wilbert, our guide's plan was to get going as soon as it was light (around 5:30am) and aim to reach our campsite at lunch time. His reasoning was to get most of the actual climbing done while we were in the shadow of the tall mountains around us. It also made life simpler for the support team who wouldn't have to pick somewhere en route, unpack to make lunch, and then pack up again to get to the campsite. He also, I think, quite liked the idea of catching up with the group that were ahead of us who were starting around 700m up the climb and who would be having lunch at our evening campsite. In the event we arrived at our campsite about 2 hours after they had left, having another pass to go over before they got to their campsite for the night.

We were on modern trails, according to Wilbert, and although I think we passed some Inca ruins at a campsite en route, we didn't look at them. Wilbert's explanation for the route wasn't entirely clear. As I understood it the original Inca road went over a different pass, though I never figured out if it was higher or lower. I got the impression a large section of the road from Cusco to Machu Picchu was destroyed by the Inca themselves, triggering landslides, in order to prevent the Spanish finding their way along it, so maybe that explains why we were following a modern alternative.

We started at about 3000m. At around 3,700m I began to feel quite tired and a little concerned about the 500m still go. At 3,900m as we came out of the shade and into the sun, my legs felt like lead and I made it up to the pass only by doggedly walking 300 steps and then stopping (300 steps, if you are interested, gets you up about 50m). At the time we put this down to the fact Manchester is super-flat and so our uphill muscles don't get a lot of exercise. However, I wasn't remotely stiff the next day, at which point it occured to us to measure my blood oxygen using my watch. It was down at 81%, rising to 88% if I took several deep breaths (B., in contrast was generally in the high 80s/low 90s). So it's possible the issue was lack of blood oxygen - even though I wasn't showing any other symptoms of altitude sickness.

Once over the pass we descended around 600m to our campsite. I badly wanted to go to sleep, but B. and Wilbert forced me to have some lunch first. Then I slept for an hour, after which I felt much more like myself.

We walked a total distance of just under 12km.

Pictures under the Cut )
([syndicated profile] epod_feed Jun. 18th, 2025 12:01 am)

The Directions of Sunrise

Photographer: Thomas McGuire

Summary Author: Thomas McGuire

I recall a television quiz program more than half a century ago in which the host asked, “In your neighborhood, in what direction does the Sun rise?” I was watching on a black and white TV set, because at the time color TV was a novelty. Regardless, why he said, “In your neighborhood,” only he knows, since, of course, it’s generally irrelevant. If the host had asked, “In your neighborhood, in what exact direction does the Sun rise?” then the complete answer would be a bit more difficult. Because the spin axes of Earth are tilted 23 and a half degrees, the more exact direction of sunrise is determined by the seasons.

In the photo above, taken from my home in Cave Creek, Arizona, my camera is facing more or less due east. So, at the summer solstice (top panel), the Sun rises in the northeast, at the equinoxes (middle panel) it rises in the east, and at the winter solstice (bottom panel) it rises in the southeast. In short, the azimuth angles of sunrise and sunset depend on several factors including time of year (shown above), the latitude of your location, the vertical angle of the horizon and atmospheric refraction. Note that the saguaro cactus, center of each panel, looks slightly different at the summer solstice (top panel) because June is when its fruits appear.

 

Cave Creek, Arizona Coordinates: 33.838750, -111.952429

Related Links:

Exact Time of Sunrise and Sunset

Analemma Captured from Lake Varese, Italy

Princess Summefall Winterspring

 

  

purplecat: The Tardis against a sunset (or possibly sunrise) (Doctor Who)
([personal profile] purplecat Jun. 17th, 2025 06:46 pm)
Two Doctor Who companion outfits for your delectation and delight! Outfits selected by a mixture of ones I, personally, like; lists on the internet; and a certain random element.


Outfits below the Cut )

Vote for your favourite of these costumes. Use whatever criteria you please - most practical, most outrageously spacey, most of its decade!

Voting will remain open for at least a week, possibly longer!

Costume Bracket Masterlist

Images are a mixture of my own screencaps, screencaps from Lost in Time Graphics, PCJ's Whoniverse Gallery, and random Google searches.
([syndicated profile] epod_feed Jun. 17th, 2025 12:01 am)

Sandandsea

Arizza 01 gennaio 2025

Photographer: Emanuele Nifosì

Summary AuthorEmanuele Nifosì



During the winter season in the Mediterranean Sea, strong storm surges often break the crest of the protective berms along coastal beaches, creating channels that then flow along the beach before the water reenters the sea (top photo). Note how, where the seawater retreats, it leaves behind distinctive rills and etchings in the sand, an example of nature's artistry (bottom photo). Photos taken on January 1, 2025, at Arizza beach, on the coast of Ragusa, Sicily. 

Photo DetailsBoth photos were taken with the Samsung A54 smartphone processing software: Lightroom

 

Arizza, Sicily, Italy Coordinates: 36.736510, 14.677501

Related Links:

Beach Drainage

Rip Currents



 

 

jadelennox: its the story of an ice cube but every time he feels happy it make him melt a little bit more (story of an ice cube)
([personal profile] jadelennox Jun. 16th, 2025 10:11 pm)

my friend just said "ACAB includes Odo" and she's right.

purplecat: The family on top of Pen Y Fan (General:Walking)
([personal profile] purplecat Jun. 16th, 2025 08:07 pm)
We did our Inca Trail holiday with Explore! who (out of necessity as I understand it) subcontracted to a local tour company. At some point something went wrong with getting permits for the trail. The story we were told was that the local agent forgot to apply for our permits, but several other people in the group had had permits delayed, so we concluded that there had been a more general permit mix-up which was simplified for our consumption as "forgot to apply for your permits". The up-shot of all this was that instead of travelling as part of a group of ten walkers with a guide, cook and porters it was just the two of us with a guide, cook and porters, setting out a day after everyone else with the aim of catching up with them at Machu Picchu. This was a mixed blessing, we got a lot more time with our guide and didn't have to worry that we were slowing anyone down, on the other hand it felt like an awful lot of staff for just us and even though our guide as very good at leaving us alone for various stretches, or sending us off on our own to explore things, it was quite intense.

Photos and more under the cut! )

Comet Atlas and the Obstech Observatory in Chile

 

Photographer: Angello Gonzalez Castro

Summary AuthorAngello Gonzalez Castro

Featured here is Comet C/2024 G3 (ATLAS) next to the telescope that discovered it. The ATLAS project, located at the Obstech Observatory in Chile's Rio Hurtado Valley, uses a 0.5-meter telescope to monitor the sky looking for asteroids that have a possibility to impact the Earth's surface at some time in the future. Photo taken on January 24, 2025, at 22:35 local time.

Photo Details: Sony A7RII camera; Sony 28mm lens; F2.8; 15 x 8 seconds exposure; ISO 1600; stacked.

 

Obstech Observatory, Chile Coordinates: -30.47102, -70.765028

Related Links:

List of Asteroid Close Approaches to Earth

Comet Tsuchinshan-Atlas, its Anti-Tail and Venus

Angello's Instagram site 

 

 

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