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cross-posted from: https://lemmit.online/post/2822172
This is an automated archive made by the Lemmit Bot.
The original was posted on /r/coolguides by /u/Dremarious on 2024-05-02 20:51:12.
Cool Guides
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1. Defining a Guide Guides are comprehensive reference materials, how-tos, or comparison tables. A guide must be well-organized both in content and layout. Information should be easily accessible without unnecessary navigation. Guides can include flowcharts, step-by-step instructions, or visual references that compare different elements side by side.
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From this article: https://arstechnica.com/science/2024/04/swimming-and-spinning-aquatic-spiders-use-slick-survival-strategies/
Spiders already possess some adaptations that help in the water, such as hairs that repel water and trap air around them (a).
The diving bell spider Argyroneta aquatica uses these hairs to transport a large volume of air to its underwater canopy (b).
Other spiders burrow under the sand and surround their nests with waterproof silken barriers to stay safe when the tide is high (c).
Desis marina builds its own watertight silk nest in the holdfast where bull kelp attaches to rocks (d).
Other spiders, such as Marpissa marina, build their waterproof nests inside old seashells (e).
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(Sorry, can't seem to find a higher-res photo!)
Link to the article with a description of each, and maybe a little on the history or place of origin: https://www.apetimemagazine.com/40-tipi-di-caffe-in-italia-li-conosci-tutti/
It's in Italian though, so hopefully you can use "translate" on your phone or desktop!
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cross-posted from: https://reddthat.com/post/15118169
The chemistry behind new and old book smells
cross-posted from: https://mstdn.social/users/compoundchem/statuses/112053145362352366
Image description: Infographic on the aroma of books. The smell of old books is produced by the gradual breakdown of cellulose and lignin in paper. Type of paper and age of the book affect the compounds produced, which include furfural, vanillin and benzaldehyde. The aroma of new books is equally variable, the compounds causing it coming from adhesives, inks, and chemicals used for paper treatment. Many of these chemicals are odorless themselves, but can react and contribute to the release of aroma chemicals.
(Originally published earlier today on mstdn.social) - Click the Fedi-Link to visit.
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Food and agriculture have a significant impact on our planet, particularly in terms of carbon emissions, water withdrawals, and land use.
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