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Science

MIT’s trillion-frames-per-second camera can capture light as it travels

"There's nothing in the universe that looks fast to this camera."

Photo from YouTube video.

Photographing the path of light.

A new camera developed at MIT can photograph a trillion frames per second.

Compare that with a traditional movie camera which takes a mere 24. This new advancement in photographic technology has given scientists the ability to photograph the movement of the fastest thing in the Universe, light.


The actual event occurred in a nano second, but the camera has the ability to slow it down to twenty seconds.

time, science, frames per second, bounced light

The amazing camera.

Photo from YouTube video.

For some perspective, according to New York Times writer, John Markoff, "If a bullet were tracked in the same fashion moving through the same fluid, the resulting movie would last three years."


In the video below, you'll see experimental footage of light photons traveling 600-million-miles-per-hour through water.

It's impossible to directly record light so the camera takes millions of scans to recreate each image. The process has been called femto-photography and according to Andrea Velten, a researcher involved with the project, "There's nothing in the universe that looks fast to this camera."

(H/T Curiosity)


This article originally appeared on 09.08.17

Science

College students use AI to decode ancient scroll burned in Mount Vesuvius

“Some of these texts could completely rewrite the history of key periods of the ancient world."

When Mount Vesuvius erupted in 79 C.E., it buried entire cities in volcanic materials. While Pompeii is the most famous site affected by the natural disaster, the nearby villa of Herculaneum was also laid to waste—including over 800 precious scrolls found inside Herculaneum’s library, which were carbonized by the heat, making them impossible to open and recover their contents.

Which brings us to the Vesuvius challenge, started by computer scientist Brent Seales and entrepreneurs Nat Friedman and Daniel Gross in March 2023. The contest would award $1 million in prizes to whoever could use machine learning to successfully read from the scrolls without damaging them.

On February 5, the prize-winning team was announced.


The team consisted of three savvy college students— Youssef Nader in Germany, Luke Farritor in the US, and Julian Schilliger in Switzerland—working with each other from across the globe.

Each student had a prior individual accomplishment in the challenge before teaming up. Farritor first deciphered a word from the scroll ((ΠΟΡΦΥΡΑϹ, or “porphyras,” which means “purple” in ancient Greek), after which Nader was able to read multiple column from the scroll, in addition to Julian Schilliger creating 3D map renderings of the papyrus.

Nader, Farritor and Schillinger eventually combined their talents to train machine-learning algorithms to decipher more than 2,000 characters. Contest organizers estimated a less than 30% success rate for even less characters.

So, what exactly did the scrolls say? Turns out, the ancient cultures were just as curious about what makes us truly happy in life as we are today.

From the Vesuvius Challenge/ scrollprize.org

The translated text, thought to be written by Epicurean philosopher Philodemus, appears to be a philosophical discussion on pleasure, and how it’s affected by things like music and food. And quite possibly “throwing shade” as stoicism by calling it “an incomplete philosophy because it has ‘nothing to say about pleasure.”

“We can’t escape the feeling that the first text we’ve uncovered is a 2,000-year-old blog post about how to enjoy life,” the Vesuvius Challenge website writes.

The first Vesuvius Challenge resulted in 5% of one scroll being read. For 2024, the goalpost has been moved to being able to read 90% of all four scrolls currently scanned, and to lay the foundation to read all 800 scrolls, and possibly other texts found at the Herculaneum library.

“Some of these texts could completely rewrite the history of key periods of the ancient world,” Robert Fowler, a classicist and the chair of the Herculaneum Society, told Bloomberg. “This is the society from which the modern Western world is descended.”

Using artificial intelligence to create a future has been a prime topic of conversation as of late, but this story is a great example of how AI can give us rare glimpses into the past as well. It's pretty incredible to think about how many ancient mysteries could be solved as technology continues to advance in the years to come.

But no matter how much knowledge we gain, it feels safe to say that pleasure might always an enigma.

Cavemen must have been perpetually late, given that humans didn't get around to inventing the sundial until 1500 BCE. The first attempts at measuring time via sun movement were shadow clocks created by the Egyptians and Babylonians. These led to the sundial, an instrument that tells time by measuring shadows cast by the sun on a dial plate. Sundials were our preferred method of timekeeping until the mechanical clock was invented in 14th-century Europe.

Photo via (cc) Flickr user Sara Bogush

In 1972, Hamilton introduced the world's first digital watch. Its $2,000 price tag was hefty, but by the '80s, digital watches became affordable for the average person. Now, both technologies have merged in a cool invention, the digital sundial. Created by French Etsy seller Mojoptix, this outdoor clock uses the patterns on a suspended wand to mold natural shadows into a digital-looking time readout. The digital sundial has two major drawbacks: It only reports the time in 20-minute intervals, and it's not very effective after sundown. But it sure does look cool.

Here's the digital sundial in action!

This article first appeared on 9.15.17.

Photo by Jamie Street on Unsplash

Anyone who's ever been on Tinder knows having a cute animal in the photo is usually a big hit.

But what if Tinder profile photos only featured that cute animal? And what if, instead of a millennial would-be hooker-upper, it was the adorable dog or cat itself looking for true love?

That's an idea some animal shelters are toying with.


"We are always trying to come up with ... creative new ways to get our shelter dogs out in front of potential adopters," says Karen Hirsch, public relations director at LifeLine Animal Project in Georgia.

Animal Profile created by Mark Wales

Photo from Pixabay

And experimenting with online dating for dogs and cats might just be working.

The harsh world of pet adoption is extremely competitive: About 6.5 million dogs and cats enter U.S. shelters every year, each seeking a good forever home. It's too big a need for shelter operators to just sit back and hope they all get adopted.

That's why you see adorable dogs on display outside the grocery store, partnerships with Uber that will bring puppies directly to you for playtime, and aww-inspiring social media campaigns like dogs in pajamas.

An estimated 50 million people worldwide use Tinder. So LifeLine and other shelters and rescues figure why not give it a shot?

After all, people using online dating apps are already looking for love and companionship — just maybe a slightly different kind.

Hirsch says they recently created profiles for 22 of their dogs and cats.

Animal profiles are also showing up on Bumble, which is home to another 20 million users or so.

Like sweet Duke here.

Animal Profile created by Mark Wales

Original photo from Pixabay

Each pet is assigned to a volunteer who creates the profile and handles the conversations after a match

"In a crowded shelter, pets often get overlooked, but on a dating app, the animal becomes an individual," Hirsch says. "People learn about them and form a 'virtual' attachment."

Plus the witty banter is oodles of fun.

For LifeLine, the experiment is still new. But Hirsch says people are responding to it incredibly well so far.

At the very least, Tinder and Bumble have proven to be great for word-of-mouth awareness-building on the importance of adopting shelter pets. The animals are getting dozens of matches. Hirsch says there have been more than a few online adoption inquiries, as well as people coming into the shelter to meet their "match" in person.

She also notes that one of the matches even became a regular volunteer at LifeLine.

Photo by Eric Ward on Unsplash

This new animal dating idea has another upside for apps — and the people using them, too.

Dating experts are finding that people are getting burned out by online dating. Between "ghosting," "cushioning," "the slow fade," and a bunch more of those annoying slang terms, humans out there are wondering if dating apps are even worth the effort.

For romantic love, who knows?

But now that you might just meet the dog or cat of your dreams, that's not a bad reason to keep on swiping.


This article originally appeared on 01.10.18