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Archive for the ‘Science!’ Category

A few thoughts on AI from one of the leading sci-fi writers of the day.

Scalzi on Film: Hollywood Totally Lied to Us About AI: Why Cinematic Cyborgs Are So Much Smarter Than What We Have in the Real World

Behold! Science has caught up to fiction, and the age of Artificial Intelligence, long promised by science fiction in film, literature, and video games, is here! And in this golden age…tech companies expend vast amounts of energy to create search engine assistants trained on partially or fully stolen data, who tell us it’s okay to eat rocks and put glue on pizza, and chatbots who “hallucinate” answers to queries, i.e. confabulate bullshit based on a statistical regression to the textual mean. Our “AI,” as it turns out, is less intelligent than a chicken, even if it has a better vocabulary.

Will the technology continue to change? Certainly, and with rapidity. Will it move more concretely from “applied statistics” to a more humanized “artificial intelligence”? We shall see!

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Photo by Jonathan Kemper on Unsplash

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If my brain had been working yesterday I would have mentioned the fact that many of us have an unusual opportunity to see the Aurora Borealis right now. 

“The word Aurora was first used by Galileo and comes from Latin and is the name of the goddess of dawn.” — NOAA

This light show in space is typically reserved for latitudes close to the Earth’s poles, but we happen to be experiencing a G3 solar storm right now. This happens when solar storms drive coronal mass ejections, solar flares, solar particle events and solar winds at us. And by us, I mean Earth.

First, some pretty pictures from as far south as Florida:

PHOTOS: Exceptional solar storm sparks stunning auroras across Canada – The Weather Network

But wait, why does solar energy sometimes turn the sky into an Impressionist painting?

Understanding aurora colors; the science behind the display | MPR News

Our sun is the main reason for an aurora display. Particles energized by the sun race toward Earth, colliding with our upper atmosphere. Earth’s magnetic field divert this energy towards the north and south poles. As these energized particles enter Earth’s atmosphere, they excite gas atoms and molecules. The colors observed depend on which gas atoms they interact with.

Aurora colors explained, National Weather Service

And hang on, it comes in black?!

Aurora Colors Explained – Southern and Northern Lights

In addition to colorful light bands, sometimes an aurora has black bands that block starlight. The dark regions likely come from electric fields in the upper atmosphere that block electrons from interacting with gases.

I won’t be hurt if you want to stop here and go search for more pictures, but if you’d like to know more about the how and why, read on!

Aurora Dashboard (Experimental) | NOAA – NWS Space Weather Prediction Center

When and where can you see the northern and southern lights also known as the aurora? This page provides a prediction of the aurora’s visibility tonight and tomorrow night in the charts below. The animations further down show what the aurora’s been up to over the last 24 hours and estimates what the next 30 minutes will be like. The aurora’s colorful green, red, and purple light shifts gently and often changes shape like softly blowing curtains.

Aurora – 30 Minute Forecast | NOAA – NWS Space Weather Prediction Center

This is a short-term forecast of the location and intensity of the aurora.

Even more in-depth sciency stuff!

Aurora Tutorial | NOAA – NWS Space Weather Prediction Center

The figure below shows the magnetosphere and the locations where electrons are accelerated (in red). The red region on the right of the figure is where the electrons that produce night-time aurora are accelerated and the source of the processes that generate geomagnetic storms.

Pretty colors are pretty, of course, but why should we care about space weather?

Education and Outreach | NOAA – NWS Space Weather Prediction Center

Space weather is a global issue. Unlike terrestrial weather events, like a hurricane, space weather has the potential to impact not only the United States, but wider geographic regions. These complex events can have significant economic consequences and have the potential to negatively affect numerous sectors, including communications, satellite and airline operations, manned space flights, navigation and surveying systems, as well as the electric power grid.

Aaaand in case you haven’t had enough about auroras in particular and space weather in general, NOAA has a fun dashboard for you! 

Space Weather Enthusiasts Dashboard | NOAA – NWS Space Weather Prediction Center

The goddess of dawn

shivers with rainbow delight.

The sun blows his kiss.

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Photo by Ibrahim Boran on Unsplash

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Sometimes you might look at the world and see only the meh, the drab, the muddy exteriors of your surroundings. It’s Tuesday, I get it.

But when the light is just right or you’re a little less tired and you take an extra moment to look deeper, you may find magic just waiting to be discovered.

Here’s one example; click through for photos, which are amazing.

Rainbow swamp: The flooded forest in Virginia that puts on a magical light show every winter

Every winter, when sunlight hits at the right angle, visitors to Virginia’s First Landing State Park are treated to a mesmerizing rainbow light show courtesy of the park’s bald cypress swamp.

I ran across this article and immediately wanted to know more. You too? Here you go!

An Array of Colors at First Landing State Park – State Parks Blogs

If you happen to visit First Landing State Park at just the right time, you might see people transfixed at the edge of one of the cypress swamps. I’ve been there and excitedly said aloud, “Whaaaaaaaaaaaaat?!?!” to no one in particular, while wearing a very silly grin. Why you ask? Because I saw this rainbow water for the first time.

What an incredible world.

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Photo by NOAA on Unsplash

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Yesterday, we headed out into one of the many beautiful trail systems dotted around Ottawa. The day was bright and the paths were carpeted in a lovely array of gold, orange and red leaves. It felt like a perfect way to usher in fall, but it turns out we were a day early.

Today, however, we can celebrate the Autumn Equinox, when night and day are (more or less) equal, and the sun shines directly down streets set east to west, as they do in places like Chicago.

Autumnal equinox 2024 brings fall to the Northern Hemisphere today

When is the first day of fall in 2024?

A carefully worded answer is that on Sunday, Sept. 22, at 8:44 a.m. Eastern daylight time (5:44 a.m. Pacific daylight time) autumn begins astronomically in the Northern Hemisphere, and spring in the Southern. At that moment, the sun would be shining directly overhead as seen from a point in the equatorial Atlantic Ocean, 461 miles (743 km) south-southwest of Monrovia, Liberia. 

10 Things About the September Equinox

Here are 10 facts about the first day of astronomical fall (autumn) in the Northern Hemisphere.

Welcome to fall!

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Photo by John Jennings on Unsplash

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Your Name in Landsat 🛰️

Type in your name to see it spelled out in Landsat imagery of Earth!

Does what it says on the tin. Excellent!

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The moon shines bright tonight, my friends. 

  • We have a full moon.
  • We have a harvest supermoon.
  • And if you (like me) are in North America, South America, Africa or Europe, we have a partial lunar eclipse.
  • We even have a bonus sort of moon related item at the end!

First, the what, when, where of tonight’s eclipse.

What to know about Tuesday’s lunar eclipse and harvest supermoon – NPR

The best times to view the event will depend on your location, but the lunar eclipse will peak at 10:44 p.m. ET, according to NASA. All of North and South America will have a chance to see the partial lunar eclipse and harvest supermoon depending on the weather. Europe and Africa will also have an opportunity to see the eclipse.

The Next Full Moon is a Partial Lunar Eclipse; a Supermoon; the Corn Moon; and the Harvest Moon – NASA

As the full Moon closest to the autumnal equinox, this is the Harvest Moon. The first known written use of this name in the English language (per the Oxford English Dictionary) was in 1706. During the fall harvest season farmers sometimes need to work late into the night by moonlight. On average moonrise is about 50 minutes later each night. Around the Harvest Moon this time is shorter, about 25 minutes for the latitude of Washington, DC, and only 10 to 20 minutes farther north in Canada and Europe.

(Note from the future: NASA has a great Astronomy Photograph of the Day showing a time lapse of the eclipse.)

Here is some general info on eclipses and a fun video from NASA.

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And as for that more-or-less moon related bonus item? It’s a tasty one.

Mr Man and I went for a lovely if hot hike down by the river, and decided that the best way to cap it off would be with ice cream. We found ourselves at Chris’s Ice Cream Ottawa.

This fun little shop had a number of interesting and creative flavors, including blood orange, chili chocolate, strawberry crunch, and… hang on, what’s this?

Moon mist.

Ysh.cabana, CC BY 4.0, via Wikimedia Commons

Interesting. Never heard of it. (That’s because we’re not Out East and I have apparently not been shopping in the right ice cream stores.)

Wait, it’s a combination of bubble gum, grape, and banana?! 

Here’s a quick intro to this regional delight: Written in the stars: The legendary tale of Atlantic Canada ice cream favourite Moon Mist.

I did not think I would like it. I did not think the flavors would work. In fact, they did more than work, as all three flavors combined into a new, better flavor.

I don’t quite know how to describe this “improbable” combination except as a structural shift. Imagine three individual flavors, normally experienced as if they were sequential, or side by side. When eaten together, however, the flavors stack together to create a singular new experience.

Readers, I loved it.

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Photo by Shot by Cerqueira on Unsplash

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Today’s question of the day: 

BBC World Service – The Climate Question, Can Science Fiction help us fight climate change?

The acclaimed US sci-fi author Kim Stanley Robinson is also a star in the world of climate activism because his work often features climate change – on Earth and beyond. Robinson has been a guest speaker at the COP climate summit, and novels such as The Ministry For The Future and The Mars Trilogy are admired by everyone from Barack Obama to former UN climate chief Christiana Figueres. 

Now, the answer to this question seems fairly self-evident to me. I see innovation as a conversation, in a way, between what is and what we can imagine will be. And fiction is excellent at helping us imagine new and better worlds.

Other examples of sci-fi ideas made real:

Ten Inventions Inspired by Science Fiction | Smithsonian

6 scientific innovations inspired by science fiction

10 ‘Star Trek’ Technologies That Actually Came True | HowStuffWorks

Look around you. What are our technological and social capabilities? What are our needs? And what do you think we’ll invent next?

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Photo by Cody Dagg on Unsplash

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Mr Man and I recently went on the hunt for the perfect blue gift for a friend. We did eventually find a beautiful piece of handblown glass in a dark blue with silver flecks. Lovely.

The only issue, we later discovered, was that our goal should have been a color that was closer to teal. So not the deep blue of a falling dark sky, but the vibrant green-tinged hues of a Caribbean sea over a white sand beach.

Regardless, the piece was still pretty. And it brought up the question of whether one person’s idea of blue is the same as another’s.

And then this site came across my desk: Is My Blue Your Blue?

If you think the page color is blue, click the button at the bottom right. If you think it’s green, click the bottom left. And don’t be surprised when it starts to get tricky!

For more on this topic, check out this article on the variability in color perception, and interpretation, in humans. 

The science of color perception

A lot of factors feed into how people perceive and talk about color, from the biology of our eyes to how our brains process that information, to the words our languages use to talk about color categories. There’s plenty of room for differences, all along the way.

For example, most people have three types of cones — light receptors in the eye that are optimized to detect different wavelengths or colors of light. But sometimes, a genetic variation can cause one type of cone to be different, or absent altogether, leading to altered color vision. Some people are color-blind. Others may have color superpowers.

Superpowers? Yes, please!

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Photo by Jeremy Bishop on Unsplash

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How did we get the landscape that we have today? I’m talking the big stuff, geology, not horticulture. Plate tectonics. We all know what Earth looks like now, but how did we get here?

This animation starts with the world we recognize, then rolls back time to show how the planet’s macrostructure has changed. Fun, right?

Witness 1.8 billion years of tectonic plates dance across Earth’s surface in a new animation

Mapping our planet through its long history creates a beautiful continental dance — mesmerising in itself and a work of natural art.

It’s a beautiful dance.

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Photo by Drew Colins on Unsplash

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If you’re the sort of person who enjoys looking up, you might like this list of September skywatching tips from NASA.

What’s on the roster? Another supermoon, a partial lunar eclipse, Saturn doing its ring thing, and something called International Observe the Moon Night, plus more more more.

Check out the article or watch the video here:

Have fun!

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Photo by Jordan Steranka on Unsplash

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