3D printing has made musical instruments more accessible

3D printers can create nearly any object that can be digitally designed

Limited only by the size of the printer and the properties of the materials used for printing, fabrications, including household items, toys, props, cases, prototypes, and models, can take anywhere from fractions of an hour to several days to make, depending on design complexity, size, color changes, and printer settings.

Software subscriptions, licenses, and climate control systems add to 3D printing costs

Although the sharing of designs and reduced manual labor suggested the fabrication of prosthetics would be facilitated by 3D printing, particularly in developing regions, software and hardware requirements have posed hurdles to achieving this goal. While some insurance companies have refused to cover 3D-printed limbs, they are covered by Medicare.

Prosthetics and orthotics have been 3D printed to improve the lives of animals

Shells for hermit crabs, wheelchairs for guinea pigs and dogs, and horseshoes for improved running performance have been created using 3D printers. Other artificial body parts made using this technology include a jaw for a loggerhead turtle, a beak for a toucan, and a tail for an American alligator.

The benefits of 3D printing batteries, from safety to sustainability

Rather than using the liquid electrolyte commonly found in lithium-ion batteries, 3D-printed batteries would use a solid layer, which can be custom-built into different shapes, deliver higher energy density by building thinner layers, and be fabricated with fewer raw materials compared to injection molding.

Most custom earmolds for in-ear hearing aids are made using 3D printing

The technology has also been utilized for behind-the-ear and receiver-in-canal hearing aids, allowing for the creation of structures tailored to the patient's anatomy for enhanced effectiveness. 3D printing has also been used to print retinal eye cells and custom eyeglass frames.

Massive 3D printers have been used to build homes by stacking layers of 'concrete toothpaste,' a fire-resistant material that effectively insulates against outside noise.

Chip-based 3D printers can be pocket-sized and involve no moving parts

Researchers have demonstrated a proof-of-concept version of a chip-based 3D printer that emits visible light onto light-sensitive resin to construct solid shapes. The technology may provide a portable, low-cost solution for future, small-scale fabrication needs.

View a timeline of 3D printing technology through 2019

The first working 3D printing device was invented in 1983 and utilized stereolithography, a process in which a laser triggers a chemical reaction that hardens liquid resin. Powder-based laser sintering technology was patented in 1987, with metal-based powders first being used for 3D printing in 1997.

Components of the 'ghost gun' allegedly used by Luigi Mangione were 3D printed

Although some "ghost guns" are firearms whose serial numbers have been removed, many others are built from pieces that can be printed using readily available online data files. Federal laws and some states do not prohibit the construction of these DIY firearms for personal use.

View a gallery of 3D printed clothing

Many 3D printed garments represent wearable art where technology meets couture. Despite their appearances on runways since Iris van Herpen's pioneering top at Amsterdam Fashion Week in 2010, mainstream adoption has been limited due to high costs and reduced comfort when compared to fabric-based apparel.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

In 2015, the FDA approved the first 3D-printed prescription tablet

Spritam, an epilepsy medication, had been too large and difficult to swallow, particularly due to its inability to dissolve easily. The new pill was designed with porous layers to enhance its dissolvability, paving the way for future 3D printing of drugs.

Playing music enhances the creation, storage, and retrieval of memories

Scans of the brains of individuals who play instruments have shown enhanced connectivity between multiple brain regions—visual, auditory, and motor cortices—and the corpus callosum, which connects the two brain hemispheres. These complex connections are strengthened through practice and then used in other activities that involve both logic and creativity. The brains of musicians also appear to give experiences multiple types of memory tags, such as audio, emotional, and conceptual, improving their processing.

Tone Transfer recreates any piece of audio into instrumental recreations

Using machine learning models and Differentiable Digital Signal Processing, this tool can transform any 15-second sound clip into a flute, saxophone, trumpet, or violin reproduction. Researchers behind the open-source experiment hope the technology will enable musical creation through creative sound combinations.

Meta's Quest and other mixed reality devices can make learning new skills easier

PianoVision utilizes the passthrough visibility of a headset to illuminate which keys to play on a real piano or keyboard, providing an immersive, software-based learning alternative to human instruction. Similar apps also offer virtual model replacements for physical devices, such as a virtual piano, to practice with.

Turning trash into music

In a town built on a landfill, a music teacher and young musicians created an orchestra using instruments made entirely from trash. From oil cans to bottle caps, they turned waste into music.

One classical musician arranged a work specifically for yoga

In the middle of a yoga class, Ellen Fishman noticed that sitting closer to a speaker allowed her to feel the music in her body, enhancing her overall experience. She arranged music for a string ensemble with a yoga session in mind. The group, StringFlo, now performs the work live in yoga classes.

How billiard balls catalyzed the 'Plastics Century'

For centuries, billiard balls were made of ivory from elephant tusks. But when excessive hunting caused elephant populations to decline, they began to look for alternatives: celluloid, which would become known as the first plastic.

The mass of a cell can be measured using hollow, vibrating beams

In 2010, scientists at MIT constructed a U-shaped device that vibrates like a guitar string with an internal fluid channel. As cells and bacteria pass through the device, its rate of vibration shifts, with greater mass creating larger shifts.

Musicians are 57% more likely to have tinnitus compared to the general public

Musicians have four times the risk of developing hearing loss, and their risk of developing tinnitus is increased by more than half.

Although no longer the dominant format, CDs are increasingly popular with younger people

The compact disc now only accounts for about 3% of all music industry revenue, but those who still purchase CDs are, generally, much younger than most would expect. A 2023 YouGov poll found that 53% of Americans were willing to pay for music on CDs. When broken down by generation, those under 45-years-old were more likely to express interest in CDs and vinyl.

A 19-month-old boy went viral for his natural drumming skills

A mother gifted her husband a drum set for Christmas, but was surprised to find their young child take a liking to the instrument. The musician couple noticed that over time the young boy taught himself proper form and how to keep up with the beat of the music. TikToks they filmed of their son went viral and amassed millions of views.

How Apple's GarageBand changed music

Apple's preinstalled, easy-to-use software GarageBand was first released in 2004. Since then, it's changed the way artists write and record music. The program's accessibility and ease of use have allowed beginner artists to experiment and find their voice, while major artists like Rihanna, Grimes, and Bjork have used the program to record hit singles and perform live. This article from the Red Bull Music Academy explains how the basic interface reshaped an industry.

Old credit cards can be made into guitar picks, phone stands and more

Experts recommend always cutting through the chip and the card number when disposing of expired credit cards, as the magnetic strip, the chip, and the card number all contain information that thieves might be interested in.

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

What is a harpsichord?

The harpsichord is the precursor to today's piano, an accompanying instrument first developed in the Early Middle Ages. Rather than struck with hammers (like a piano), the strings of a harpsichord are plucked, producing a bright, consistent tone. The instrument provided harmony in ensemble music during the Renaissance and Baroque periods and featured prominently in opera.

The printing press spread novels widely

Johannes Gutenberg's invention of the printing press in 1440 changed how writing was reproduced. It allowed multiple manuscripts to be copied via movable type rather than by hand, making more literature more widely available. Over time, that change caused literacy rates to rise, creating a market for even more literature.

Squeaky toys mimic prey sounds, appealing to dogs' hunting instincts

Squeaky toys provide instant feedback and gratification, and they can also prevent boredom and improve canine dental health. Some toys contain seemingly silent squeakers that use ultrasonic technology to emit sounds only audible to dogs.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

'Silent' fireworks have gained more interest in recent years as a quieter celebratory option.

A century of Billboard issues documenting the evolution of popular music.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Watch this video that uses Lego bricks to explain how venture capital works.

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

Art theft is the third-largest source of criminal revenues worldwide, thanks in part to the subjective nature of valuing a work of art.

Play the role of a student in a game where you try to navigate college and remain debt-free, selecting different income levels, high school experience, race, ethnicity, and more.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.