Lightnews — Scholar-powered news

Reposted by Lighthouse

Rob 🫐

@veganjackson.bsky.social

Hyperbolas, lines, exponential waves, and logistic waves
#computerart #codeart #programming #sciart #synthart #generativeart

December 18, 2025 at 12:06 PM

Lighthouse

@armholster.bsky.social

While current information on foreign coinage is scant, the Royal Canadian Mint is one of the few countries that produce (mint) coins for other countries, in addition to bullion (pure gold and silver) and commemorative coins.
#RCM #Canada #mint #coins
en.wikipedia.org/wiki/List_of...

Royal Canadian Mint

YouTube video by Royal Canadian Mint

youtu.be

December 18, 2025 at 3:42 PM

Lighthouse

@armholster.bsky.social

El Yunque National Forest, Puerto Rico
Website: defendersofwildlife-360365372.imgix.net/sites/defaul...
#Travel #Daily #Photo #Landscape #Wallpaper #ElYunque #PuertoRico

December 18, 2025 at 2:00 PM

Reposted by Lighthouse

Silvia Pineda-Munoz, PhD - Climate Ages

@climateages.bsky.social

Four billion years ago, Earth had oceans and solid ground.

Yet clear evidence of life doesn’t appear until about 3.8 billion years ago.

Why the gap?

Join the Newsletter for more!
🧪 #SciComm
buff.ly/Bv9y2gQ

4 Billion Years Ago, Earth Looked Ready for Life. So What Took So Long?

How early Earth’s instability and missing rocks shape what we know about life’s origins Let’s take a time machine and travel back over four billion years,...

climateages.com

December 17, 2025 at 8:52 PM

Lighthouse

@armholster.bsky.social

Strasbourg Christmas Market, Grand Est, France
Website: i0.wp.com/thetwordtrav...
#Travel #Daily #Photo #Landscape #Wallpaper #Strasbourg #Christmas #France

December 17, 2025 at 1:23 PM

Lighthouse

@armholster.bsky.social

For 95% of our history as humans, we lived in hunter-gatherer societies.
Elected leaders in those societies were generous, brave, wise, charismatic, fair, impartial, reliable, tactful, strong, and humble. We need more elected leaders like that today.
- C. Boehm:
www.jstor.org/stable/pdf/2...

Humankind

AN INSTANT NEW YORK TIMES BESTSELLERThe “lively” (The New Yorker), “convincing” (Forbes), and “riveting pick-me-up we all need right now” (Peop...

www.hachettebookgroup.com

December 16, 2025 at 10:40 PM

Lighthouse

@armholster.bsky.social

Ancient trees aren’t just big or old—they’re climate archives and cultural touchstones. A new SETI Institute Big Picture Science episode argues that protecting these few giants yields outsized benefits for science, history, and our future:
bigpicturescience.org/episodes/bes...

The Science Behind the Oldest Trees on Earth

How experts have determined that bristlecone pines, sequoias and baobabs have stood for thousands of years

www.smithsonianmag.com

December 16, 2025 at 8:53 PM

Lighthouse

@armholster.bsky.social

“When you are studying any matter or considering any philosophy, ask yourself only what are the facts and what is the truth that the facts bear out.”
- Bertrand Russell

December 16, 2025 at 6:13 PM

Lighthouse

@armholster.bsky.social

Be aware. Interactive political AI chat-boxes are more persuasive than human‑only communication or AI messages (41–52% more effective!), whether or not the “facts” presented are true or not. Political opinions can be shifted either way at a scale never before possible. CHECK THE FACTS YOURSELF!

Chatbots spew facts and falsehoods to sway voters

Chatbots that dole out fact-laden arguments can sway voters. Those facts don’t have to be true.

www.sciencenews.org

December 16, 2025 at 5:43 PM

Lighthouse

@armholster.bsky.social

Avenue of the Sphinxes, Luxor, Egypt
Website: www.connollycove.com/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper#sphinxes #Luxor #Egypt

December 16, 2025 at 5:41 PM

Lighthouse

@armholster.bsky.social

Biscari Palace, Catania, Italy
Website: images.squarespace-cdn.com/content/v1/5...
#Travel #Daily #Photo #Landscape #Wallpaper #BiscariPalace #Italy

December 15, 2025 at 1:59 PM

Lighthouse

@armholster.bsky.social

Ha'Penny pedestrian bridge over the River Liffey, Dublin, Ireland
Website: images.ireland.com/media/Images...
#Travel #Daily #Photo #Landscape #Wallpaper #Dublin #Ireland

December 14, 2025 at 3:34 PM

Lighthouse

@armholster.bsky.social

Monument Valley Navajo Tribal Park, Navajo County, Arizona, USA
Website: www.monumentvalley.fr/images/monum...
#Travel #Daily #Photo #Landscape #Wallpaper #MonumentValley #Arizona

December 13, 2025 at 7:47 PM

Lighthouse

@armholster.bsky.social

Sharing a memory from 6 years ago when I was living in London. On December 8, 2019 I was in Paris, which like all the European capitals was dressing itself up for Christmas.
Seasons Greetings to all!

Galeries Lafayette Christmas Tree. Personal photo.

December 13, 2025 at 1:18 AM

Reposted by Lighthouse

CJAD 800 Montreal

@cjad800.bsky.social

Political cartoonist Terry Mosher has inked a new deal with the @mtlgazette.bsky.social. He joined @eliasmakos.bsky.social to look back at his career:

Terry Mosher inks new deal with The Gazette, making him longest working cartoonist in North America - The Elias Makos Show | iHeart

<p>Terry Mosher, also known as Aislin, cartoonist for the Montreal Gazette</p>

www.iheart.com

December 9, 2025 at 8:31 PM

Lighthouse

@armholster.bsky.social

Statue of Fray Juan de Zumarraga and Juan Diego with Virgin Mary image on his cloak, Pocito Church, Villa of Guadalupe, Mexico City, Mexico
Website: a.travel-assets.com/findyours-ph...
#Travel #Daily #Photo #Landscape #Wallpaper #VirginMary #Mexico City

December 12, 2025 at 10:54 PM

Reposted by Lighthouse

David Blanchflower BSc

@davidbflower.bsky.social

'Super flu' wave hits hospitals in England with no peak yet. 🧪 www.bbc.co.uk/news/article...

Super flu' wave hits hospitals in England with no peak yet

Numbers in hospital rise by more than 50% in a week as NHS faces 'worst-case scenario'.

www.bbc.co.uk

December 11, 2025 at 6:28 PM

Lighthouse

@armholster.bsky.social

Trekking Kilimanjaro, Tanzania, Africa
Website: www.wildafrica.us/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper #Kilimanjaro #Tanzania

December 11, 2025 at 2:35 PM

Reposted by Lighthouse

Alejandro Montenegro

@aemonten.bsky.social

"Our results enable us to reject mitochondrion-early scenarios of eukaryogenesis, instead supporting a complexified-archaean, late-mitochondrion sequence for the assembly of eukaryote characteristics"

www.nature.com/articles/s41...

Dated gene duplications elucidate the evolutionary assembly of eukaryotes - Nature

Analysis of eukaryotic gene sequences using a relaxed molecular clock methodology indicate that eukaryotes emerged 3.0–2.25 billion years ago as a result of mitochondrial endosymbiosis with complex ar...

www.nature.com

December 3, 2025 at 10:14 PM

Lighthouse

@armholster.bsky.social

Akshardham Temple, Gandhinagar district, Gujarat, India
Website: akshardham.com/gujarat/wp-c...
#Travel #Daily #Photo #Landscape #Wallpaper #temple #Gujarat #India

December 10, 2025 at 4:25 PM

Lighthouse

@armholster.bsky.social

Jabal Kharab, Tayma, Al-Ula Desert, Saudi Arabia
Website: images.ctfassets.net/v78wipeni189...
#Travel #Daily #Photo #Landscape #Wallpaper #Desert #SaudiArabia

https://images.ctfassets.net/v78wipeni189/1Vj1ovh2zDh5OC3UsNVyuo/c77d33653297b47c70568db57957b891/pexels-irfan-rahat-164426592-10943277.jpg?fm=webp&w=1920&q=80&h=1083
#Travel #Daily #Photo #Landscape #Wallpaper #Desert #SaudiArabia

December 9, 2025 at 7:54 PM

Lighthouse

@armholster.bsky.social

Do you exercise? Staying active from your 40s onward looks far more protective than early-adult activity, reinforcing exercise as a key, low-cost brain health strategy to cut dementia risk by up to ~45%. Here is the article:
jamanetwork.com/journals/jam...
#exercise #dementia #prevention