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Ppoppycocktails.bsky.socialAug 19, 2024 10:26pm

My favourite photo for #WorldPhotoDay

CIcompoundchem.comAug 19, 2024 9:42pm

CIcompoundchem.comJun 29, 2024 7:11pm

Today is #NationalCameraDay. Ever wondered how Polaroid instant photography works? The latest edition of Periodic Graphics in C&EN has you covered! cen.acs.org/materials/Pe...

Infographic on the chemistry of Polaroid photography. Polaroid film uses three layers of silver bromide crystals, each sensitive to a different color of light. When the correct color of light hits silver bromide, that compound reacts to produce silver atoms. After the photo has been taken, a pack of chemicals bursts and spreads over the film. The chemicals include potassium hydroxide, which diffuses downward toward the dye layers. There, it deprotonates the hydroquinone developer molecules attached to the dyes. When silver bromide crystals are not exposed to the color of light they are sensitive to, the deprotonated dye right beneath those crystals flows up to the image layer. But in areas where the crystals are exposed to the right color of light, the silver atoms oxidize the hydroquinone, preventing the dye layer just beneath from diffusing up to the image layer. The dyes combine to create the different colors that make up the image.

Sgoslankit.bsky.socialAug 19, 2024 4:17pm

Capture the world through your lens on #WorldPhotoDay #PhotographyLovers #ShopNow

ETeric-camel.bsky.socialAug 19, 2024 3:23pm

Since it's #WorldPhotoDay I give you my study of a crossed dipole antenna made from 3mm⌀ aluminium wire and a plastic picnic plate. Today was its first time out in the wild receiving a NOAA weather sat, some tweaking may be required...

NWnycwater.bsky.socialAug 19, 2024 1:54pm

Happy #WorldPhotoDay! Shoutout to our amazing DEP photographers, who not only document our infrastructure but also capture the beauty of NYC and the Watershed. 📸

A collage of photos taken by DEP photographers

LBlbqorg.bsky.socialAug 19, 2024 9:46am

Today we're celebrating those awesome LbQ moments on #WorldPhotoDay #LbQ

SPspouyllau.bsky.socialAug 19, 2024 8:31am

Le 19 août, c'est la journée mondiale de la photographie #worldphotoday www.flickr.com/photos/19344...#photo #streetphotography #photography

Notes

Explore this photo album by Stéphane Pouyllau on Flickr!

KFkuriosefeiertage.bsky.socialAug 19, 2024 5:33am

Guten Morgen, guten Morgen. 📸📸📸 Zückt die Kameras und macht Bilder. Denn seit 2010 feiern Foto-Fans den 19. August als World Photo Day (engl. Welt-Foto-Tag). Knips, knips. #WorldPhotoDay #19August #WeltFotoTag #fotografie #aktionstag www.kuriose-feiertage.de/world-photo-...

Welt-Foto-Tag – World Photo Day - 19. August 2024

Zückt die Kameras und macht Bilder. Denn seit 2010 feiern Foto-Fans den 19. August als World Photo Day (engl. Welt-Foto-Tag). Knips, knips.

tek-tek.bsky.socialAug 18, 2024 9:00pm

おはようございます🐱 お盆休みも完全に終了で日常の始まりですね💦 本日8月19日は世界写真の日📷️だそう 2009年にフランス政府が制定したとの情報や非公式に制定された記念日との情報があるそうで、この記念日は写真の芸術や科学、歴史を祝う日で、この日にはSNS上でハッシュタグ「#WorldPhotographyDay」や「#WorldPhotoDay」とともに素敵な写真がシェアされるんだって写真が発明された事で今様々な思い出や景色等を残せるようになったのはホント有り難いですね✨ 日常のはじまりですがお天気は全国的に崩れそうです💦 1週間頑張りましょうね😺