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Innovation

What Is Bitcoin, Exactly?

A new book tells the backstory and provides an easy-to-understand explanation of the much buzzed-about cryptocurrency

Graphophone, recorded in October 1881. "There are more things in heaven and earth, Horatio, than are dreamt of in our philosophy. I am a graphophone and my mother was a phonograph." Voice of Alexander Graham Bell's father.

Until Now, There Was No Play Button for the Recordings Bell and Edison Made in their Lab

An exhibition on sound kicks off the American History Museum’s Year of Innovation, enabling visitors to hear some of the earliest recordings

The chart is less a literal representation of the sea, but more an abstract illustration of the ways that ocean swells interact with land.

The Innovative Spirit - OLD

How Sticks and Shell Charts Became a Sophisticated System for Navigation

Sailors navigating with sextant, compass and maps found in the Marshall Islands that curved sticks and cowry shells were far more sophisticated

A windowless cabin design concept by Spike Aerospace.

Craziest Airplane Cabins of the Future

These airplane cabin designs—both real and conceptual—show what might await us on flights in the near future

A multihued aurora ripples across the night sky over Tromsø, Norway, on January 19. Auroras happen when high-energy particles from the sun slam into Earth's atmosphere, exciting gas molecules in the air and causing them to emit light. The colors seen depend on the type of molecules involved and the altitude at which the most interactions are happening. Green is the most common shade for auroras and is produced by oxygen molecules at relatively low altitudes—between 62 and 186 miles.

Best Space Photos of the Week

These Celestial Highlights Include Flowing Auroras and a Cracked Comet

Catch up on the week’s best space images, from a cyclone’s glowing eye to a surreal Martian vista

WÜF’s dog collar keeps owners connected to their canine companions at all times by offering two-way communication, GPS tracking and exercise monitoring

Five Wild Ideas That Just Got Funded

Five Wild Ideas That Just Got Funded: From A Fitbit for Dogs to Soap Jewelry

Not to mention, a bizarre bike-treadmill hybrid meant to reduce the strain on runners’ joints

The scales on Fragment C divide the year by days and signs of the zodiac.

Decoding the Antikythera Mechanism, the First Computer

Hidden inscriptions offer new clues to the origins of a mysterious astronomical mechanism

The International Space Station Will Soon Be Able to Measure Forest Density Using Lasers

Strengthening the planet’s forests is one critical way to combat climate change

A closeup of a Herculaneum papyrus scroll used in an international scanning project.

Ancient Scrolls Blackened by Vesuvius Are Readable at Last

X-ray scans can just tease out letters on the warped documents from a library at Herculaneum

The Eko Core Bluetooth-enabled stethoscope accessory will let doctors share heart sounds for virtual consultations.

Tech Watch

This Smart Stethoscope Attachment Could Lead to More Accurate Diagnoses

Eko Core clips on to existing stethoscopes and lets physicians share heart sounds through their smartphones and the Web

Ten years ago this week, the Huygens probe gave scientists a first look at the icy surface beneath the haze of Saturn's moon Titan.

Best Space Photos of the Week

Best Space Photos of the Week: From Solar Flares to Saturn’s Moons

A spitting sun, a well-loved lake and a happy accident on Mars star in this week’s best space images

Cholera Belt, Dodd & Monk, Albert Mill, Canal Street, Congleton, Cheshire, 1882. With little understood about the disease, there were many bogus treatments and preventative measures against cholera. "The cholera belt seems like the most unlikely protection," writes Halls. "However, it was believed that a chilled body could cause disease, and that keeping the stomach and abdomen warm could protect against bowel complaints."

10 Victorian Inventions That Never Quite Took Off

Flops from a “knife and fork cleaner” to a “cholera belt” provide a curious look at life in 19th century England

United States Internal Revenue Service "bottle stamp"

Museums Are Now Able to Digitize Thousands of Artifacts in Just Hours

At the American History Museum, a collection of rarely seen historic currency proofs are being made ready for a public debut

Here is the artist's rendition of what a Tree of 40 Fruit will look like at 10 years.

Art Meets Science

A Tree Grows 40 Different Types of Fruit

What started as an art project has become a mission to reintroduce Americans to native fruits that have faded from popularity

A startup called Roost is developing a WiFi-enabled battery that listens for an alarm and sends a message to your phone when your smoke detector blares.

Tech Watch

This Smart Battery Sends a Message to Your Phone When Your Smoke Detector Sounds

It also alerts you weeks in advance of dying—sparing you from that annoying chirp

The dark black lacquered center of the Ming Dynasty tray, surrounded by an elegant basket weave design, made it seem almost modern.

How Curators Found a Ghostly Image Lurking Beneath Layers of Lacquer

Work in the conservation lab revealed there was more to this Ming Dynasty tray than meets the eye

An Asian tiger mosquito in action.

New Research

Could GM Mosquitoes Pave the Way for a Tropical Virus to Spread?

Modified insects designed to stop dengue fever could make it easier for another disease-carrying species to take root

Dale A. Gardner, Space Shuttle Mission 51-A, George D. Guzzi Jr. This watercolor shows Dale Gardner tethered to the exterior of Space Shuttle Discovery. During that mission, Gardner and Joseph Allen donned jet-propelled maneuvering units on spacewalks to recover two malfunctioning satellites.

Space Exploration Would Be Nothing If We Didn’t Know How to Spacewalk

The Air and Space Museum brings the privileged experience to the public in an exhibit that chronicles 50 years of technology

Bradesco Bank ATM, Rio de Janeiro.

The ATM is Dead. Long Live the ATM!

Usage is on the decline – so why are banks looking to the machines to save them?

Tony Award winner Geoffrey Holder's ingenious design used a skillet to complete the Tin Man’s hat in the 1975 Broadway production of The Wiz.

Breaking Ground

The Tin Man’s Hat From “The Wiz” Offers Just a Hint of the Musical’s Beating Heart

When the all-black musical production opened on Broadway 40 years ago, critics scoffed, but audiences embraced it

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