Tootfinder

Physicist Yoichiro Nambu
(南部 陽一郎) was born #OTD in 1921.
He developed a theory of spontaneous symmetry breaking
to explain superconductivity,
paving the way for electroweak symmetry breaking via the Higgs mechanism in the Standard Model

#OTD 2014 vanuit het net nieuwe TivoliVredenburg, #Utrecht. Ter vergelijking ongeveer zelfde uitzicht in september 2025. Dit ziet er over een jaar weer heel anders uit, nu het Smakkelaarsveld bebouwd wordt.

Happy #DarwinDay! 🧪
#OTD Charles Darwin was born 217 years ago today.
It’s not all cheetahs versus gazelles
Darwin the botanist • UNESCO recognition • Darwin’s address book • Charles Lyell • Leonard Jenyns • punctuated equilibria • what the heck are chins for? • and lots more…
-- MU-Peter Shimon

Richard Carter, FCD (@friendsofdarwin.bsky.social)
The latest edition of my free Friends of Charles Darwin newsletter went out earlier today to mark the 217th anniversary of Darwin’s birth. You can read it here… #HistSci https://substack.com/home/post/p-187638684

#OTD 2022 Vanishing point

The aftermath of the first successful flight - 2.5 seconds, 12.5 meters high - of a liquid-fueled #rocket 100 years ago #OTD as photographed by Robert H. #Goddard himself in Auburn, Mass. The flight itself was neither filmed nor photographed but there is plentiful other material about the history-making experiments available, linked from https://skyweek.wordpress.com/2026/03/12/allgemeines-live-blog-ab-dem-12-marz-2026/#Mar16 (much of it just gone up).

#OTD 2015 #Utrecht

#OTD in 1788, the final seven ships joined the four vessels of the #FirstFleet already in #BotanyBay. (HMS Supply arrived on 18 Jan; three others on 19 Jan.)
Four days later, the two vessels of the French La Perou…

#OTD 2021

101 years ago, #OTD in 1925,
Edwin Hubble announced that Andromeda and other spiral nebulae were definitely separate galaxies outside the Milky Way
https://mastoreader.io/?url=https:%2

»Alle Macht den Räten (Sowjets) – Keine Macht der Partei«, das kann die Avantgarde der Diktatur des Proletariats im Sowjetrussland nicht ertragen und lässt die Rebellion von Kronstadt durch bolschewistische Truppen am 18. März des Jahres 1921 endgültig zerschlagen. Gegen das Vergessen!
#OTD #Kronstadt #RoterTerror #Sowjets #Lenin #Trotzki

#OTD 2011: #Amsterdam opende het 100e publieke laadpunt voor elektrisch vervoer, en het eerste in stadsdeel Nieuw-West

#OTD 2021: Time for the annual bicycle harvest in Utrecht

#OTD 2001 een van mijn eerste digitale foto's. Tjikke-tjikke-tik.
#Utrecht

Yesterday and tomorrow 50 years ago #OTD German TV viewers saw the premiere of an extraordinary nature documentary in two parts: #spiders by #HorstStern was a towering triumph in #TV nature #documentaries, and I still recall being blown away seeing it back then.

Heute vor vier Jahren war Querdenken in Bremen wirklich in einer Scheißsituation. 😃 #Querdenken #Bremen #SchwarzerBlock #OTD https://m.youtube.com/watch?v=UgGee999yR4