Tuesday, July 31, 2018

Imagining the Future

via The Verge

People have always imagined the future, but starting in the 20th century, these visions involved more and more technology. So says science historian Peter Bowler, author of A History of the Future: Prophets of Progress from H.G. Wells to Isaac Asimov.

You write that a lot of the novels and popular science writing during the early 20th century were concerned with the “idea of progress.” Can you expand on that?

During this period, “progress” was increasingly being seen in terms of technology. Throughout the 19th and 20th century, industrial progress was seen as very important and the sense of the future was shaped by the sense of what technology could do: rationally planned cities with your beautiful high-rises and airports on top of airports and helicopters, and all this giving people a better life.

In earlier periods, the utopian future tended to be defined in terms of the social relations put into place. But increasingly, people thought the utopian future (including these better social relations) would depend on the application of technology — which is why it was so easy for narrow-minded technophiles to focus on a particular technology which they see as going to give us all a wonderful new life.

What are some of the predictions that they made? Were the writers all technophiles? Or was there a lot of doom and gloom?

It was both. The newspapers were enthusiastic about Lindbergh flying across the Atlantic, which often led to speculations about when we’ll be able to fly, plus warnings about the dangers of aviation. Rudyard Kipling wrote about a world transformed by a peaceful use of aviation, but there were plenty of doom and gloom novels, too. H.G. Wells wrote about civilization almost wiped out in a great war and gas, and yet in his book it was still the scientists who had the technological skill to build the rationally planned world. So we did see both sides of the equation.

Read more!

Stealthy smart jewelry is coming to take care of your Vitamin D levels #WearableWednesday

30104 95c78a8e10777af73b8559d463116c4b

With the tag line “Stay Stylish, Stay Healthy” Stealthy hopes to create fashionable wearables that monitor health. Via Wearable.com:

So what does Stealthy do? The collection includes a necklace, bracelet and a hijab pin. The final devices will have sensors which monitor levels of Vitamin D by calculating how much time is spent outdoors in adequate vitamin D level sunlight during optimal hours. The wearable is paired with a companion lifestyle app which makes activity suggestions and encourages users to share the data with their doctor.

Siddique has working prototypes for the bracelet (pictured with the founder) and says she is working on a new design with a smaller module plus bangle form factor (pictured in the CAD mock up images below).

One potential customer is women pre and post pregnancy but the team isn’t narrowing itself when so many people could benefit from being more in tune with Vitamin D levels.

“We believe wearables are the future and will fast become integral to the future of personalised medicine,” says Siddique.

Stealthy bangle 1529685677 2Wmo column width inline

Learn more!


Flora breadboard is Every Wednesday is Wearable Wednesday here at Adafruit! We’re bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!

The Cardboard Artist

Narratively shared this interesting story on Youtube!

Calder Greenwood is a prolific street artist that roams Los Angeles searching for the perfect homes for his fantastical creations—giraffes, giant pigeons, mammoth skulls, truck-sized spiders, and even the occasional wizard. Calder chooses cardboard and paper mache as his medium for the materials’ ephemeral qualities, intentionally designing his creations to fall a part after only a few days.

Narratively is an online platform that publishes untold, original human stories from around the world.

See more!

60 second docs interviewed him as well!

From the @Adafruit Forums: a remote controlled focuser for an astro camera

a remote controlled focuser for an astro camera

Adafruit Forums user andrew has built a great project – a a remote controlled focuser for an astro camera!

He writes:

The basic components for the stepper motor and the drive to the Pentax lens pretty much remain the same. Since I’m using a 1.5 foot ethernet cable to connect the stepper motor to the box containing the Metro 328, I used a small RJ45 breakout board that I attached to the stepper with some 3m automotive double-sided foam tape. And since the iOptron mount, the Metro 328, the stepper motor shield, and the TEC on the astro camera all needed DC power I decided to use part of the project box for power distribution. The Metro 328 and motor shield are powered from inside the box, the 4 power jacks can be used to drive external 12 volt devices, two are presently used by the iOptron mount and the camera’s TEC. The green digital meter is battery voltage and the red is the amps the battery is supplying.

If you decide to make something similar there is something to be aware of. I am using no limit sensors for the focusing, meaning that the stepper motor can drive the focusing mechanism against its internal stops. With the motor I used and my lens that is not a problem but I could see it might be if a high torque or geared stepper motor was used. Also it would be a good idea to use an inline fuse in the battery cable, something that I am planning to do.

Read about the whole project on the Adafruit Forums!

 

Polymer Paintings by Lizzie Campbell #ArtTuesday

These are so good! It’s always nice to see different interpretations of popular works and the people and world around us.

via Lost At E Minor

British artist Lizzie Campbell recreates iconic oil paintings, not with oil, but rather, with polymer clay.

In her series Polymer Paintings, the UK-based creative takes classic artworks – such as the Mona Lisa and Johannes Vermeer’s Girl with a Pearl Earring – and remakes them in the style of clay animation.

According to Campbell, her process involves using FIMO modeling clay to create the backgrounds and the three-dimensional characters. These pieces are then placed in an oven to harden before being framed and hung on a wall.

Read more and see more of her cool work on her instagram claydisarray!


Screenshot 4 2 14 11 48 AMEvery Tuesday is Art Tuesday here at Adafruit! Today we celebrate artists and makers from around the world who are designing innovative and creative works using technology, science, electronics and more. You can start your own career as an artist today with Adafruit’s conductive paints, art-related electronics kits, LEDs, wearables, 3D printers and more! Make your most imaginative designs come to life with our helpful tutorials from the Adafruit Learning System. And don’t forget to check in every Art Tuesday for more artistic inspiration here on the Adafruit Blog!

From the @Adafruit Forums: a remote controlled focuser for an astro camera

a remote controlled focuser for an astro camera

Adafruit Forums user andrew has built a great project – a a remote controlled focuser for an astro camera!

He writes:

The basic components for the stepper motor and the drive to the Pentax lens pretty much remain the same. Since I’m using a 1.5 foot ethernet cable to connect the stepper motor to the box containing the Metro 328, I used a small RJ45 breakout board that I attached to the stepper with some 3m automotive double-sided foam tape. And since the iOptron mount, the Metro 328, the stepper motor shield, and the TEC on the astro camera all needed DC power I decided to use part of the project box for power distribution. The Metro 328 and motor shield are powered from inside the box, the 4 power jacks can be used to drive external 12 volt devices, two are presently used by the iOptron mount and the camera’s TEC. The green digital meter is battery voltage and the red is the amps the battery is supplying.

If you decide to make something similar there is something to be aware of. I am using no limit sensors for the focusing, meaning that the stepper motor can drive the focusing mechanism against its internal stops. With the motor I used and my lens that is not a problem but I could see it might be if a high torque or geared stepper motor was used. Also it would be a good idea to use an inline fuse in the battery cable, something that I am planning to do.

Read about the whole project on the Adafruit Forums!

 

The quest to save Stephen Hawking’s voice

Hawking

Jason Fagone at the San Francisco Chronicle details the story of the team who worked months to resurrect the distinctive voice of physicist Stephen Hawking from the long-out of date CallText 5010 boards and firmware.

It is interesting to see the entire process unfold – emulating the chips and the mysterious firmware, the hard work done by Eric Dorsey and his team.

And the fun fact: the final code was placed on a Raspberry Pi 3!

The team was ultimately successful, but Dr. Hawking passed away several months after the project was completed.

Hawking

Read the complete article on the Chronicle website.

You can also get a first-hand account of the process from Peter Benie on his website. This includes the disposition of the project and code.

‘Art technicians, and the artists who rely on them’ | #ArtTuesday

From arts festivals to contemporary museums, the UK’s Independent have a good article on the “art technicians” – aka artist, fabricators, engineers, designers, welders, makers – who design many of the things that other people claim as their art.


 

Down a chaotic lane in chaotic Govanhill, the works of two of Glasgow’s female Turner Prize-nominated artists, Lucy Skaer and Marvin Gaye Chetwynd, are being produced. But it is two men who have their studio here.

Simon Richardson and Simon Harlow are art technicians, a job that people are often surprised to learn exists. They are the invisible hands who build sculptures and installations for which someone else gets the credit, taking on (almost) all of the graft for none of the glory. They are anonymous outside of their workshop, where they make the works that make others household names.

Their work prompts the perpetual question of what makes art, art – the idea, or the execution? In a world of self-promotion, aided and abetted by social media, it also raises questions over whether pride can still be a private, rather than a public, emotion.

Harlow is a practising artist as well as a technician, who in the latter capacity has worked with Ross Sinclair, Kate Davis and Assemble – the collective of architects who won the 2015 Turner Prize – and with Lucy Skaer, whose latest show is about to open at the Edinburgh Art Festival; the pair were at Glasgow School of Arttogether 20 years ago.

Read more here.

Chile unveils street art for blind people in Santiago #ArtTuesday

Chile s street art for blind people BBC News

Via BBC:

Chile’s capital Santiago has put up tactile versions of some of its street art in an attempt to make the city’s murals more accessible.

Although such representations of artwork are common in museums and art galleries, the Chilean capital has created them for street art and murals.

See more!


Screenshot 4 2 14 11 48 AMEvery Tuesday is Art Tuesday here at Adafruit! Today we celebrate artists and makers from around the world who are designing innovative and creative works using technology, science, electronics and more. You can start your own career as an artist today with Adafruit’s conductive paints, art-related electronics kits, LEDs, wearables, 3D printers and more! Make your most imaginative designs come to life with our helpful tutorials from the Adafruit Learning System. And don’t forget to check in every Art Tuesday for more artistic inspiration here on the Adafruit Blog!

Mark Roger’s Otherworldly Paintings #ArtTuesday


NewImage

From Mark Rogers via Lost at E Minor:

Pioneers from Beyond: Artist Statement
My current body of work illustrates a fictional series of events and interactions between various extraterrestrials and settlers of the Western United States. I have always been a bit of a storyteller, and as I draw in my sketchbooks to create the concepts for my paintings, I am slowly building and expanding on a western fantasy world. Much like a medieval setting with tales of elves and fairies, my imaginary landscape is that of the southwest desert where UFO’s hover on the horizons and aliens eat gold. And much like the mischievous and even malevolent nature of elves in fairy stories, the extraterrestrials in my paintings often have sinister motives.

See more


Screenshot 4 2 14 11 48 AMEvery Tuesday is Art Tuesday here at Adafruit! Today we celebrate artists and makers from around the world who are designing innovative and creative works using technology, science, electronics and more. You can start your own career as an artist today with Adafruit’s conductive paints, art-related electronics kits, LEDs, wearables, 3D printers and more! Make your most imaginative designs come to life with our helpful tutorials from the Adafruit Learning System. And don’t forget to check in every Art Tuesday for more artistic inspiration here on the Adafruit Blog!

Why is a candle flame repelled by magnets?

Why is a candle flame repelled by magnets? It turns out to be a combination of diamagnetic soot particles and hot gas. Check out this Youtube video from user Applied Science.

More:

I should have mentioned in the video that the exhaust from a flame will be oxygen-poor, thus also making it more diamagnetic than normal air.  Air is a mixture of nitrogen (diamagnetic) and oxygen (paramagnetic). Removing the oxygen will make the resulting gas more diamagnetic.

Do you like scientific investigation? Let us know in the comments below!

Low Poly World Map

What an interesting way to create a map.

via Bewegingslab on Thingiverse

After printing laydown the map on a table. This way you kan compare the pieces with the complete image from Thingiverse. Tape a frame from 96cm wide and 55 cm heigh, so you can position the pieces en glue them on.

See more of this design.

UPDATED GUIDE: Using IFTTT with Adafruit IO to Make an IoT Door Detector

UPDATED GUIDE: Using IFTTT with Adafruit IO to Make an IoT Door Detector

Our Adafruit IO library for Arduino was recently updated to include lots of new features. We especially like this guide which integrates If-This-Then-That with Adafruit IO to build a door-detection circuit to email/tweet at  you if somebody opens a door.

The code in this guide has been edited to be compatible with the new changes to the Adafruit IO Arduino Library.

Read the updated guide in full here…

The Ada Lace Books Will Get Girls Interested in STEM #MakerEducation

Emily GeeksGuide 952280472

Nice profile of Emily Calandrelli from WIRED, in which Calandrelli discusses her new Sci-Fi children’s book series Ada Lace.

Science is a constant presence throughout the series, but Calandrelli (and her co-author Tamson Weston) never let the story get bogged down in technical detail.

“What we do in the book is we add just a pinch of science, and then for the kids who want to learn more, there’s basically a glossary of science in the back,” Calandrelli says. “So it’s a fun way—for the kids who really want to dive into the science—to be able to give them that information that they’re craving.”

Read more.


Adafruit_Learning_SystemEach Tuesday is EducationTuesday here at Adafruit! Be sure to check out our posts about educators and all things STEM. Adafruit supports our educators and loves to spread the good word about educational STEM innovations!

Check out the Cyberpunk Instagram Arts of Mad Dog Jones | #cyberpunk #instagram #ArtTuesday

Biology and Philosophy in Delicate Glass Sculptures #ArtTuesday

via Colossal

Glass artist Kim KototamaLune creates ethereal sculptures that resemble abstracted organic shapes and faces. She builds delicate glass grids without molds, which she then works into sculptural form and displays in darkened rooms. This presentation allows light to permeate, which both illuminates the sculptures from within and casts dramatic shadows on the surrounding walls.

The artist was born in Vietnam and now lives and works in France, and has studied multiple languages. Cultural identity, the origins of life, and in-between spaces play into her inspirations.  KototamaLune shares with Colossal that she seeks to create an “uncharted territory in order to engage in a silent dialogue with the ‘strangers’ living in us. Those sculptures arise from the will to recover within each of us what is common in our fetal origins.’”

KototamaLune is represented by Da-End Galerie, with whom she’ll be showing work at the ASIA NOW art fair in Paris from October 17 – 21, 2018. You can also see her work through September 15, 2018 at Villa Tamaris Art Center in southern France. Discover more sculptures in KototamaLune’s portfolio on her website.

See more!


3055 06Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

Biology and Philosophy in Delicate Glass Sculptures #ArtTuesday

via Colossal

Glass artist Kim KototamaLune creates ethereal sculptures that resemble abstracted organic shapes and faces. She builds delicate glass grids without molds, which she then works into sculptural form and displays in darkened rooms. This presentation allows light to permeate, which both illuminates the sculptures from within and casts dramatic shadows on the surrounding walls.

The artist was born in Vietnam and now lives and works in France, and has studied multiple languages. Cultural identity, the origins of life, and in-between spaces play into her inspirations.  KototamaLune shares with Colossal that she seeks to create an “uncharted territory in order to engage in a silent dialogue with the ‘strangers’ living in us. Those sculptures arise from the will to recover within each of us what is common in our fetal origins.’”

KototamaLune is represented by Da-End Galerie, with whom she’ll be showing work at the ASIA NOW art fair in Paris from October 17 – 21, 2018. You can also see her work through September 15, 2018 at Villa Tamaris Art Center in southern France. Discover more sculptures in KototamaLune’s portfolio on her website.

See more!


3055 06Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

Time Travel Tuesday #timetravel a look back at the Adafruit, maker, science, technology and engineering world

NewImage 59 1


781 – The earliest recorded eruption of Japan’s Mount Fuji takes place.

Red Fuji southern wind clear morning

Mount Fuji is an attractive volcanic cone and a frequent subject of Japanese art especially after 1600, when Edo (now Tokyo) became the capital and people saw the mountain while traveling on the Tōkaidō road. The mountain is mentioned in Japanese literature throughout the ages and is the subject of many poems.[15] One of the modern artists who depicted Fuji in almost all her works was Tamako Kataoka.

It is thought that the first recorded ascent was in 663 by an anonymous monk.[citation needed] The summit has been thought of as sacred since ancient times and was forbidden to women until the Meiji Era in the late 1860s. Ancient samurai used the base of the mountain as a remote training area, near the present-day town of Gotemba. The shōgun Minamoto no Yoritomo held yabusame in the area in the early Kamakura period.

Read more


1703 – English author Daniel Defoe is convicted of seditious libel after publishing a satire and placed in a pillory for punishment. He’s, however, pelted with flowers.

800px Daniel Defoe Kneller Style

Defoe was a natural target, and his pamphleteering and political activities resulted in his arrest and placement in a pillory on 31 July 1703, principally on account of his December 1702 pamphlet entitled The Shortest-Way with the Dissenters; Or, Proposals for the Establishment of the Church, purporting to argue for their extermination.[18] In it, he ruthlessly satirised both the High church Tories and those Dissenters who hypocritically practised so-called “occasional conformity”, such as his Stoke Newington neighbour Sir Thomas Abney. It was published anonymously, but the true authorship was quickly discovered and Defoe was arrested.[11] He was charged with seditious libel. Defoe was found guilty after a trial at the Old Bailey in front of the notoriously sadistic judge Salathiel Lovell. Lovell sentenced him to a punitive fine of 200 marks, to public humiliation in a pillory, and to an indeterminate length of imprisonment which would only end upon the discharge of the punitive fine.[7] According to legend, the publication of his poem Hymn to the Pillory caused his audience at the pillory to throw flowers instead of the customary harmful and noxious objects and to drink to his health. The truth of this story is questioned by most scholars, although John Robert Moore later said that “no man in England but Defoe ever stood in the pillory and later rose to eminence among his fellow men”.

Read more


1858 – Swiss-American educator Marion Talbot is born.

Talbot was born in Thun, Switzerland, while her parents were on a long European trip, but grew up in Boston. She was the eldest of six children born to Emily Fairbanks Talbot and Israel Talbot, who was dean of the Boston University School of Medicine. Her mother was an activist and former teacher; the paucity of college preparatory opportunities for her daughters led her to work to establish the Boston Latin Academy, the first all-girls’ college preparatory academy in the United States.

Talbot herself, however, was the eldest and did not benefit from that effort directly;[4] she attended the Chapel Hill – Chauncy Hall School near Boston, and subsequently attended Boston University, where her other had to work aggressively to secure her admission. Talbot earned an AB there in 1880 and an AM in 1882.[1] She additionally obtained an BS from MIT, where she studied under domestic science pioneer Ellen Swallow Richards, who had established her own laboratory there. Talbot initially dropped out due to poor conditions for women at MIT, but completed the degree in 1888.

Read more


1919 – Italian chemist and Holocaust writer Primo Levi is born.

Primo Levi

via NYTimes Archives:

Primo Levi, whose autobiographical writings drew on his experiences as an Auschwitz survivor and his training as a chemist, died today in Turin. He was 67 years old.

The authorities said they were treating the death as a suicide. Mr. Levi was found by members of his family and neighbors at the foot of a stairwell in the home where he was born, in the Crocetta neighborhood, and he was pronounced dead on arrival at a hospital.

Renzo Levi, the writer’s son, said by telephone from Turin that his father had had serious bouts of depression in recent months.

The elder Mr. Levi had undergone minor surgery recently, and friends suggested he was deeply troubled about the condition of his 92-year-old mother, who was partially paralyzed by a stroke last year.

Read more


1926 – American computer scientist Hilary Putnam is born.

800px Hilary Putnam

Putnam has contributed to scientific fields not directly related to his work in philosophy. As a mathematician, Putnam contributed to the resolution of Hilbert’s tenth problem in mathematics. This problem was settled by Yuri Matiyasevich in 1970, with a proof that relied heavily on previous research by Putnam, Julia Robinson and Martin Davis.

In computability theory, Putnam investigated the structure of the ramified analytical hierarchy, its connection with the constructible hierarchy and its Turing degrees. He showed that there exist many levels of the constructible hierarchy which do not add any subsets of the integers and later, with his student George Boolos, that the first such “non-index” is the ordinal {\displaystyle \beta _{0}} \beta _{0} of ramified analysis (this is the smallest {\displaystyle \beta } \beta such that {\displaystyle L_{\beta }} L_{\beta } is a model of full second-order comprehension), and also, together with a separate paper with Richard Boyd (another of Putnam’s students) and Gustav Hensel,[56] how the Davis–Mostowski–Kleene hyperarithmetical hierarchy of arithmetical degrees can be naturally extended up to {\displaystyle \beta _{0}} \beta _{0}.

In computer science, Putnam is known for the Davis–Putnam algorithm for the Boolean satisfiability problem (SAT), developed with Martin Davis in 1960. The algorithm finds if there is a set of true or false values that satisfies a given Boolean expression so that the entire expression becomes true. In 1962, they further refined the algorithm with the help of George Logemann and Donald W. Loveland. It became known as the DPLL algorithm. This algorithm is efficient and still forms the basis of most complete SAT solvers.

Read more


1964 – The American space probe Ranger 7 transmits pictures of the moon’s surface.

0731 big

via NYTimes archives:

Ranger 7 radioed to earth today the first close-up pictures of the moon- a historic collection of 4,000 pictures one thousand times as clear as anything ever seen through earth-bound telescopes.

Scientists here were hailing the achievement, which exceeded all expectations, as by far the greatest advance in lunar astronomy since Galileo.

They said the pictures not only represented a great leap in man’s knowledge of the moon, but also, on a more practical level, lent encouragement that the lunar surface was suitable for Project Apollo’s manned lunar landings.

Read more

Time Travel Tuesday #timetravel a look back at the Adafruit, maker, science, technology and engineering world

NewImage 59 1


781 – The earliest recorded eruption of Japan’s Mount Fuji takes place.

Red Fuji southern wind clear morning

Mount Fuji is an attractive volcanic cone and a frequent subject of Japanese art especially after 1600, when Edo (now Tokyo) became the capital and people saw the mountain while traveling on the Tōkaidō road. The mountain is mentioned in Japanese literature throughout the ages and is the subject of many poems.[15] One of the modern artists who depicted Fuji in almost all her works was Tamako Kataoka.

It is thought that the first recorded ascent was in 663 by an anonymous monk.[citation needed] The summit has been thought of as sacred since ancient times and was forbidden to women until the Meiji Era in the late 1860s. Ancient samurai used the base of the mountain as a remote training area, near the present-day town of Gotemba. The shōgun Minamoto no Yoritomo held yabusame in the area in the early Kamakura period.

Read more


1703 – English author Daniel Defoe is convicted of seditious libel after publishing a satire and placed in a pillory for punishment. He’s, however, pelted with flowers.

800px Daniel Defoe Kneller Style

Defoe was a natural target, and his pamphleteering and political activities resulted in his arrest and placement in a pillory on 31 July 1703, principally on account of his December 1702 pamphlet entitled The Shortest-Way with the Dissenters; Or, Proposals for the Establishment of the Church, purporting to argue for their extermination.[18] In it, he ruthlessly satirised both the High church Tories and those Dissenters who hypocritically practised so-called “occasional conformity”, such as his Stoke Newington neighbour Sir Thomas Abney. It was published anonymously, but the true authorship was quickly discovered and Defoe was arrested.[11] He was charged with seditious libel. Defoe was found guilty after a trial at the Old Bailey in front of the notoriously sadistic judge Salathiel Lovell. Lovell sentenced him to a punitive fine of 200 marks, to public humiliation in a pillory, and to an indeterminate length of imprisonment which would only end upon the discharge of the punitive fine.[7] According to legend, the publication of his poem Hymn to the Pillory caused his audience at the pillory to throw flowers instead of the customary harmful and noxious objects and to drink to his health. The truth of this story is questioned by most scholars, although John Robert Moore later said that “no man in England but Defoe ever stood in the pillory and later rose to eminence among his fellow men”.

Read more


1858 – Swiss-American educator Marion Talbot is born.

Talbot was born in Thun, Switzerland, while her parents were on a long European trip, but grew up in Boston. She was the eldest of six children born to Emily Fairbanks Talbot and Israel Talbot, who was dean of the Boston University School of Medicine. Her mother was an activist and former teacher; the paucity of college preparatory opportunities for her daughters led her to work to establish the Boston Latin Academy, the first all-girls’ college preparatory academy in the United States.

Talbot herself, however, was the eldest and did not benefit from that effort directly;[4] she attended the Chapel Hill – Chauncy Hall School near Boston, and subsequently attended Boston University, where her other had to work aggressively to secure her admission. Talbot earned an AB there in 1880 and an AM in 1882.[1] She additionally obtained an BS from MIT, where she studied under domestic science pioneer Ellen Swallow Richards, who had established her own laboratory there. Talbot initially dropped out due to poor conditions for women at MIT, but completed the degree in 1888.

Read more


1919 – Italian chemist and Holocaust writer Primo Levi is born.

Primo Levi

via NYTimes Archives:

Primo Levi, whose autobiographical writings drew on his experiences as an Auschwitz survivor and his training as a chemist, died today in Turin. He was 67 years old.

The authorities said they were treating the death as a suicide. Mr. Levi was found by members of his family and neighbors at the foot of a stairwell in the home where he was born, in the Crocetta neighborhood, and he was pronounced dead on arrival at a hospital.

Renzo Levi, the writer’s son, said by telephone from Turin that his father had had serious bouts of depression in recent months.

The elder Mr. Levi had undergone minor surgery recently, and friends suggested he was deeply troubled about the condition of his 92-year-old mother, who was partially paralyzed by a stroke last year.

Read more


1926 – American computer scientist Hilary Putnam is born.

800px Hilary Putnam

Putnam has contributed to scientific fields not directly related to his work in philosophy. As a mathematician, Putnam contributed to the resolution of Hilbert’s tenth problem in mathematics. This problem was settled by Yuri Matiyasevich in 1970, with a proof that relied heavily on previous research by Putnam, Julia Robinson and Martin Davis.

In computability theory, Putnam investigated the structure of the ramified analytical hierarchy, its connection with the constructible hierarchy and its Turing degrees. He showed that there exist many levels of the constructible hierarchy which do not add any subsets of the integers and later, with his student George Boolos, that the first such “non-index” is the ordinal {\displaystyle \beta _{0}} \beta _{0} of ramified analysis (this is the smallest {\displaystyle \beta } \beta such that {\displaystyle L_{\beta }} L_{\beta } is a model of full second-order comprehension), and also, together with a separate paper with Richard Boyd (another of Putnam’s students) and Gustav Hensel,[56] how the Davis–Mostowski–Kleene hyperarithmetical hierarchy of arithmetical degrees can be naturally extended up to {\displaystyle \beta _{0}} \beta _{0}.

In computer science, Putnam is known for the Davis–Putnam algorithm for the Boolean satisfiability problem (SAT), developed with Martin Davis in 1960. The algorithm finds if there is a set of true or false values that satisfies a given Boolean expression so that the entire expression becomes true. In 1962, they further refined the algorithm with the help of George Logemann and Donald W. Loveland. It became known as the DPLL algorithm. This algorithm is efficient and still forms the basis of most complete SAT solvers.

Read more


1964 – The American space probe Ranger 7 transmits pictures of the moon’s surface.

0731 big

via NYTimes archives:

Ranger 7 radioed to earth today the first close-up pictures of the moon- a historic collection of 4,000 pictures one thousand times as clear as anything ever seen through earth-bound telescopes.

Scientists here were hailing the achievement, which exceeded all expectations, as by far the greatest advance in lunar astronomy since Galileo.

They said the pictures not only represented a great leap in man’s knowledge of the moon, but also, on a more practical level, lent encouragement that the lunar surface was suitable for Project Apollo’s manned lunar landings.

Read more

How exactly does binary code work? #MakerEducation

Great new video that breaks down binary code from José Américo N L F de Freitas over at TED-Ed.

Imagine trying to use words to describe every scene in a film, every note in a song, or every street in your town. Now imagine trying to do it using only the numbers 1 and 0. Every time you use the Internet to watch a movie, listen to music, or check directions, that’s exactly what your device is doing, using the language of binary code. José Américo N L F de Freitas explains how binary works.

Read more.


Adafruit_Learning_SystemEach Tuesday is EducationTuesday here at Adafruit! Be sure to check out our posts about educators and all things STEM. Adafruit supports our educators and loves to spread the good word about educational STEM innovations!

Whimsical Cardboard Machines and an Art Deco-Inspired Stop Motion Film #ArtTuesday

via Colossal

Australian artist Daniel Agdag (previously) produces invented contraptions and antiquated flying machines from cardboard, timber, and trace paper, turning his whimsical fantasies into highly detailed sculptures. The works seek to connect his audience with the mechanics located beneath the exterior of modern machines, while emphasizing the complexity present in our everyday experiences.

New sculptural works include a flying caboose the combines the visual language of locomotives and hot air balloons, and a turbine-assisted car that moves horizontally along a raised track. In addition to these new pieces, Agdag has also released a short film with producer Liz Kearney titled Lost Property Office. The stop motion animation follows a custodian named Ed through his solitary work in a large city’s Lost Property Office, exploring the whimsical creations he builds from discarded objects and machines. Over 2,500 sheets of recycled cardboard were utilized over the course of film’s 18-month production, which translated into 1,258 hand-crafted and Art Deco-style set pieces and props.

See more!


3055 06Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

Marina Fridman’s Hand-Drawn Celestial Installation

via HiFructose

Handcrafted with charcoal pencils and sticks on white paper, Marina Fridman‘s massive installation “Omniscient Body” is actually a single, enormous drawing. The piece, at 74-feet-by-14-feet, is installed at the Fosdick-Nelson Gallery at Alfred University, as part of the artist’s MFA thesis exhibition. The celestial forms offer a chance “to approach the celestial body of Mars at their own scale, to be towered over by one of the rings of Saturn, and to look up at planet Earth and the Moon as though from a great distance.”

“My hand-drawn installation ‘Omniscient Body’ invites the audience to be enveloped in space, to approach the celestial body of Mars at their own scale, to be towered over by one of the rings of Saturn, and to look up at planet Earth and the Moon as though from a great distance,” she tells us. “Spanning 75 feet by 14 feet, this work is entirely hand-drawn using charcoal pencils and compressed charcoal sticks on white paper. From afar, the trompe l’oeil style drawings appear convincingly three-dimensional. Upon close examination, however, one can see the thousands of pencil marks that make up the images. Even from the seemingly empty space enveloping the planets emerge the gestural marks that make up the texture of the drawn void.”

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3055 06Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

Monday, July 30, 2018

How Stanford Is Training Socially Minded Programmers #MakerEducation

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Interesting read from The Atlantic.

Vicki Niu arrived at her freshman orientation at Stanford, in 2014, with dreams of changing the world with technology. At Stanford, professors consulted for Facebook and Google, and students took classes in buildings named for Gates, Hewlett, and Packard. Google, Yahoo, and Snapchat had been started by students while they were on campus. “I remember before coming here, I looked up a list of Stanford alumni, and was like, I can’t believe these people started all these companies,” Niu told me. “It had to be this place that made people so exceptional.”

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