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@brennt.bsky.social
Fully automated luxury space cosmology ๐ Science Educator, Designer, and Professional Nerd He/Him insta - theflamingdude tumblr - dimensions-in-space
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Cook Island flag oil tanker Eagle S lost 25% of her speed minutes before she crossed the broken cable Estlink2. She crossed at 10:26Z, ie the time of cable fault.
She proceeded at affected speed til she reached shallow waters, where she lost all momentum. After some maneuvers she regained speed.
Again, it's not a problem from the Energy standpoint but I always felt like the use of the word "light" implied visible photons bouncing through the core of the sun to the surface, which isn't really the case as far as I can see. One of those terminology issues I always got told off for!
17.10.2024 14:27 โ ๐ 1 ๐ 0 ๐ฌ 1 ๐ 0True on the Energy for sure, although the photons would still be coming if fusion stopped! White dwarves have no fusion occuring but still emit photons, and take Trillions of years to cool to black dwarves that are too cold to emit light.
17.10.2024 14:24 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0The origin of the Energy is for sure the core, and the gamma rays produced there and reabsorbed spread that energy out pretty well, but the visible photons I believe are mostly from the material in the Photosphere as that is at the correct temperature for the black body spectrum we see.
17.10.2024 14:12 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0It's a great fact, but my only issue with it is that the vast majority of the light we see is emitted by the Photosphere of the Sun, not the core, so it sometimes gives the wrong impression. The Sun is mostly just a Big Hot Thing in space!
17.10.2024 14:03 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0Light is slowed in mediums it iteracts with - we call the phenomenon Refraction and it's how Lenses work. In stars, the plasma is incredibly hot and dense, and loves to interact with the EM fields that make up light waves, hence the big slow down.
17.10.2024 14:00 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Title: Methods of defending your local library from government cuts. 1. Comminity Support: families stand round the licrary with placards 2. Fortifications: The library now has crenellations, a high wall and guards with spears. 3. Camouflage: the library has been painted with a camouflage pattern. 4. Black magic: the library has been painted with a huge pentagram , a sorceror casts a spell from an altar. 5. Time Travel: weird machinery is attached to the library, it is in a prehistoric jungle, a dinosaur walks past. 6. Disguise: the library has been dressed to look like a vape shop 7. Attack!: the library has tank tracks and large mechanical arms, it speeds forth, a librarian urges it on from a hatch at the top.
A cartoon about libraries for the Guardian.
11.02.2024 09:30 โ ๐ 3672 ๐ 1301 ๐ฌ 32 ๐ 65Having @nelighost.bsky.social and @brennt.bsky.social here for Christmas is the bestest of the best. Also, Frankfurt โฅ๏ธ
26.12.2023 16:28 โ ๐ 8 ๐ 1 ๐ฌ 1 ๐ 2