Ele Willoughby

Quite the photo editing choice there.

Łink

FREE LINK

the 4th to 2nd orbit; H-gamma is indigo and caused by a jump from the 5th to 2nd orbit; and H-delta is violet and caused by a jump from the 6th to 2nd orbit). I've shown both the quantum jumps (squiggly arrows - squiggly lines are traditional for photons) and by the line spectrum below Bohr. ⁠
⁠

levels. This also explained how the spectra of gases had distinct, thin, spectral lines. I've illustrated this with the Balmer series - because it is composed of lines which are visible to the eye (H-alpha is red & caused by a jump from the 3rd to 2nd orbit; H-beta is cyan and caused by a jump from

are big on melodrama, I'm telling you), he stipulated that perhaps they simply weren't allowed anywhere but the specific orbits. They could lower their energy state if excited by falling to a lower orbit, giving off a specific photon of a specific colour related to the difference between energy

proportional to the n squared). Bohr proposed that the orbits of electrons were somewhat like planetary orbits (though circular, & at specific quantized distances). To explain how orbiting charged electrons didn't lose energy and annihilate spectacularly with the so-called "spiral death" (physicists

My linocut of Niels Bohr with the Bohr model of the hydrogen atom and Balmer series of spectral lines. Bohr is printed in blue-grey and wearing a suit. Concentric rings of silver represent energy levels in hydrogen and overlap his head. Squiggly lines go between pairs of silver orbits and match the colours of the line spectra printed below him (left to right: red, cyan, blue and violet. H-alpha is red and caused by a jump from the 3rd to 2nd orbit; H-beta is cyan and caused by a jump from the 4th to 2nd orbit; H-gamma is indigo and caused by a jump from the 5th to 2nd orbit; and H-delta is violet and caused by a jump from the 6th to 2nd orbit.

Happy birthday to Danish #physicist Niels Bohr (1885-1962). 🧪🐡🎢 #histsci One of his most famous contributions to quantum mechanics was the Bohr-Rutherford model of the atom. Bohr is shown next to the Bohr model of the Hydrogen atom (all the concentric circles are actually at the appropriate spacing

Kirigami is endlessly fun and fascinating. As a little boy, I was obsessed...cutting intricate shapes for hours, imagining whole worlds from paper. I don’t have as much time now, but I still admire it deeply. Passion for its art and beauty has only grown stronger.

Canada Post is on strike. What this means for your mail Mail deliveries have ground to a halt in Canada as postal workers strike for the second time in two years.

Reminder to those sending surface mail from or to Canada: Canada Post strike is ongoing, with no mail being delivered across the country. Not clear when the strike will be over.

For those interested in an objective summary of the situation, here's one I found via BBC: www.bbc.com/news/article...

This one's really great, for anyone who's not already sick of hearing about Jay Graber & waffles & why what she & the rest of the Bluesky team are doing is so ridiculously incompetent & awful

I literally learned the toasting schedule. The alarm still went off in my brain but I learned to check my watch.

If it makes you feel better I have searched the lab on research boats more than once, looking for a short circuit or forgotten soldering rod, based on smell, only to find out it’s the toasters in the mess.

or whether it was merely further away. Swan Leavitt’s discovery lets astronomers use Cepheids as “standard candles”. They allow astronomers to determine distances to celestial objects and form the foundation of the Extragalactic Distance Scale.⁠

#linocut #printmaking #histsci

Cepheid variables are a class of pulsating star. They are named for the star Delta Cephei in the Cepheus constellation. The relationship between a Cepheid variable’s luminosity and pulsation period is quite precise. It had not been obvious to tell whether a star was dim because it was less luminous,

to deduce a ground-breaking theory, which allowed Hubble’s later insight about the age and expansion of the universe. Her period-luminosity relation for Cepheid variable stars radically changed modern astronomy, an accomplishment for which she received little recognition during her lifetime.⁠
⁠

time (t). She is printed over constellations in gold (Cepheus, Cassiopeia, Draco, Ursa Minor & Andromeda). ⁠
⁠
In her day, women scientists were regularly hired to do menial chores. She was hired to count images on photographic plates as a “computer”. In studying these plates, in 1908 she was able

My linocut portrait of Henrietta Swan Leavitt is printed in silvery lavender ink on Japanese kozo (or mulberry paper). Behind her is a line showing stellar luminosity (capital L with subscript sun-symbol, a circle with a dot) as a function of time (t). She is printed over constellations in gold (Cepheus, Cassiopeia, Draco, Ursa Minor and Andromeda). ⁠ ⁠

For the #spacetober_challenge day 6 prompt constellation, I am sharing my portrait of #astronomer Henrietta Swan Leavitt (1868-1921) who set the scale of our Universe. 🧪🐡👩🏼‍🔬🔭 Behind her is a line showing stellar luminosity (capital L with subscript sun-symbol, a circle with a dot) as a function of 🧵

🤞 for you! I still remember my kid when he was a toddler said, “Nana is not always bad,” cause on occasion she would listen to our parenting choices.

Ooh! 🤩

absolutely breathtaking levels of “reframe punching up as punching down” are emerging in AI discourse. fighting back against AI is us against billion dollar tech companies, yet they are pulling out so many wild rhetorical tricks to make it seem like the anti-AI movement are the powerful bullies here

A dolphin above the surface of the ocean, mid-leap.

The Marine Life feed has hit a whopping 2k likes 😱 so my friends, POST CELEBRATORY SEA CRITTERS. Birds Feed folks, seabirds count 😉🪶 come join us in the feed if you are a lover of ocean life!
bsky.app/profile/did:...

I keep telling her that if I can mount oceanographic expeditions half way around the world I can move her across town and deal with her possessions.

My mother: It’s a pity your brother was in such a bad mood.

Me: Ah

Mom: Well I don’t know

Me: It’s going to be okay. It’s a lot of things but we’ll just tick through them one by one.

Mom: [unconvincingly] Well, I trust you Ele

Me: Well you should. I am extremely trustworthy and well organized.

Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.

Thank you!

This is a mini print of Neptune! This hand-carved, hand-printed linocut is just 5” x 8” (12.7 cm x 20.3 cm) and shows Neptune, in blue and white with two fine rings against a black background, with the word and symbol for Neptune.

For the #Spacetober_challenge day 5 prompt Voyager I’m sharing my mini #linocut of Neptune for the Voyager program which sent two interstellar probes to the outer planets.

#printmaking #planet #Neptune #sciart

A wooden structure erected in the park with opening where visitors can take selfies by unicornshannon. The opening is framed with mushrooms, a tree, birds, flowers, watermelon, a rainbow/pride flag, unicorns, crystals, pink bird, a pink triangle in a heart on a unicorn, a teal heart with “East End Arts”, a flag reading “Nuit Blanche East Danforth”. It’s lit with red light after dark. Coxwell Medical Building Pharmacy sign on the building behind the park.

My kid was feeling a little anxious in the crowds after dark so we didn’t linger, but I appreciate that East End Arts curated an inclusive mix of artists and made sure everyone was welcome.

Starting with unicornshannon’s selfie station in the park entitled “community love destroys facism”

Here’s a snippet of video to show Wolf⁷a:z ‘The Agreements of Turtle Island’ multimedia and a bit of how it changed under the lights.

Thank you!

Wolf⁷a:z ‘The Agreements of Turtle Island’ multimedia is a large wooden board in a park illuminated with changing coloured lights. Here they are yellow and show painted scene of snapping turtle in water below night sky with Milky Way. The turtle is embellished with bark and carries a disk of nature symbols. There are also what I think are a woven belt and collar in upper right and lower left corners.

It gave me the impression of a single erratically moving kite frozen at each moment in time.

Wolf⁷a:z ‘The Agreements of Turtle Island’ multimedia featured a snapping turtle & Indigenous imagery and symbolism & extraordinary use of coloured lights. It was so changeable & fascinating!