Sigiriya or Lion Rock, a 200m tall ancient fortress in central Sri Lanka, built by King Kasyapa in the 5th Century AD.
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Sigiriya or Lion Rock, a 200m tall ancient fortress in central Sri Lanka, built by King Kasyapa in the 5th Century AD. Notable features include the lion’s paws entrance, frescoes of celestial maidens, and Mirror Wall with ancient graffiti. At the summit, the ruins of the king’s palace overlook advanced water and terraced gardens.
Recognized as a UNESCO World Heritage Site, Sigiriya highlights ancient Sinhalese innovation and history.
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Gli ultimi otto messaggi ricevuti dalla Federazione
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I hope it works out! 🤞🏼
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So, I booked a train trip from Seattle to Vancouver. I figure the all-Canadian leg of my trip will be less chaotic. I'll ride to Vancouver on Saturday and then fly to Montreal Saturday night.
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So, that doesn't cover my flight out, but my flight home might be affected. Even if my flight itself isn't cancelled, I'll be at an airport with thousands of people whose flights were cancelled. There will be delays in the network. If I do get cancelled, I'd be competing with thousands of other people to get on a flight, bus, or train home.
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Then, the Secretary of Transportation said that they were going to start shutting down 10% of air travel through us airports starting Friday.
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So, I am flying from Montreal to Seattle for #seagl2025. I leave on Nov 6 and return on Nov 8. I fly from Montreal to Vancouver to Seattle, and then back. All good.
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@evan You might need to thee an thenthift.
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Better 3D-Printed Bridges Are Possible, With the Right Settings
The header image above shows a completely unsupported 3D-printed bridge, believe it or not. You’re looking at the bottom of the print. [Make Wonderful Things] wondered whether unsightly unsupported bridges could be improved, and has been busy nailing down remarkably high-quality results by exhaustive testing of different settings.
It all started when they thought that unsupported bridges looked a lot as though they were made from ropes stretched between two points. Unlike normal layers, these stretched extrusions didn’t adhere to their neighbors. They are too far apart from one another, and there’s no “squish” to them. But could this be overcome?
His experiments centered mainly around bridge printing speed, temperature, and bridge flow. That last setting affects how much the extrusion from the hot end is adjusted when printing a bridge. He accidentally increased it past 1.0 and thought the results were interesting enough to follow up on; it seemed that a higher flow rate when printing a bridge gave the nudge that was needed to get better inter-line adhesion. What followed was a lot of testing, finally settling on something that provided markedly better results than the stock slicer settings. Markedly better on his test pieces, anyway.
BF = Bridge flow, BS = Bridge printing speed (in mm/sec)
The best results seem to come from tweaking the Bridge Flow rate high enough that extrusions attach to their neighbors, printing slowly (he used 10 mm/sec), and ensuring the bridged area is as consistent as possible. There are still open questions, like some residual sagging at corners he hasn’t been able to eliminate, but the results otherwise look great. And it doesn’t even require laying one’s printer on its side!All the latest is on the project page where you can download his test models, so if you’re of a mind to give it a try be sure to check it out and share your results. Watch a short video demonstrating everything, embedded just under the page break.
Thanks to [Hari] for the tip!
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But I did not toot the deputy
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Treasures of exceptional value, discovered in a 3rd Century BC, tumulus in Mangalia, southeastern Romania 🇷🇴, were presented to the public for the first time last month at the National Museum of Romanian History in Bucharest.'n#archaeohistories
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Archaeologists uncovered 10 remarkably preserved crocodile mummies, likely over 2500 years old, inside an untouched Egyptian tomb at Qubbat al-Hawa on Nile’s west bank.
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