How the GNU General Public License ensures software remains free and open

Explaining how open source systems like Linux can be secure, despite their public source code

While no computer system is immune to all cyberattacks and malware, the transparency of open-source technology means many thousands of developers can review and oversee the underlying code powering the software on an ongoing basis. This increases the likelihood of catching and patching vulnerabilities more quickly than smaller groups of cybercriminals looking to exploit them.

The history of the Linux Foundation, a technology consortium supporting open-source projects

The nonprofit, founded in 2000 by IBM, HP, Intel, and others as the Open Source Development Labs, was established to build the infrastructure needed to scale with the growing development of Linux. Upon merging with the Free Standards Group in 2007, it rebranded as the Linux Foundation and, as of 2024, provides a "neutral home for code and collaboration" to almost 1,000 projects.

The origin of Linux-based operating systems and why calling them 'Linux' is controversial

When Linus Torvalds developed the Linux kernel—the foundational layer of an operating system—developers incorporated it into other readily available components of the GNU Project to create complete systems. Although these OSes have been colloquially referred to as "Linux" for simplicity for decades, the GNU Project has long argued that they should be called "GNU/Linux" to honor the project's contributions.

How a crisis over managing Linux versions led to the foundational software behind GitHub

In 2005, after enduring several challenges with BitKeeper—the system then used to manage the Linux source code—Linus Torvalds spent about 10 days writing code for Git, a new system to organize and track versions throughout kernel development. Git provides distributed version control for GitHub, which, as of 2023, is the world's largest host of software development projects.

Microsoft paid $50k for the foundation of the OS they licensed to IBM

Rather than write MS-DOS from scratch, Bill Gates purchased the full rights to QDOS—Quick and Dirty Operating System—from Seattle Computer Products only weeks before IBM's PC hit the market. The IBM deal allowed Microsoft to license its OS to other manufacturers, ensuring it was not dependent on IBM's long-term success.

Mark Zuckerberg has been a huge advocate for open source technology

Open source technology is software, hardware, or code that's publicly accessible for viewing or editing. Zuckerberg has been an advocate for open source since 2003 and said he wouldn't have been able to build Facebook without open source code.

Modern fan fiction exists in a legal gray area

Modern copyright law prohibits using someone's intellectual property (like a character) without their permission. By and large, fan fiction is tacitly condoned by copyright holders because it's commonly distributed for free. If anything, the copyright holders often benefit by allowing passionate fan communities to flourish.

The theory behind public art

Proponents of public art, including graffiti, argue that its free access and visibility breaks down the elitism and financial barriers of galleries and museums, allowing people to interact or ignore the work as they see fit.

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.

Explore how free speech and justice coexist and sometimes clash

From the abolition of slavery to South African apartheid, this podcast explores how censorship has historically been used to suppress racial justice movements—and to promote them—and asks whether free speech is a foundation for, or a threat to, equality.

Computational and biological systems share fundamental principles, like randomness

Proposed by Alan Turing and John von Neumann, the concept originates from how DNA and computers run by executing encoded instructions in parallel. The advent of AI and the temperature parameter has seen neural networks mimic the randomness of protein encoding.

What is free verse?

Free verse is a style of poetry that does not conform to any set meter or rhyme scheme. In essence, it’s poetry whose form has been created by the poet.

Public libraries are funded by a mix of local taxes, state grants, and federal programs

Property taxes form the backbone of most library budgets, covering staff and operations. State grants expand access to literacy and technology programs, while federal funding helps libraries in rural and low-income communities.

Tesla open-sourced all its patents to speed up industry adoption of electric vehicles

The company employed a disruptive strategy to transform the transportation market, but early struggles, including leadership shifts and near bankruptcy in 2008, threatened its efforts to bring electric vehicles to the mainstream.

A breakdown of net neutrality, including its benefits and disadvantages

The principle dictates that all internet traffic should be treated equally by internet service providers and that they cannot block, slow, or charge more fees for access to specific webpages. This would help ensure equal access to the internet and prevent larger companies from paying to prioritize access to their content, but it would require greater government intervention.

The ancient Greeks laid the foundation of Western culture, from ideas to sports

The Latin alphabet is the most used in the world and stems from the Greek language. The greatest sporting event in the world, the Olympics, originated among the Greeks. The way many countries decide on policy is via forms of democracy, an innovation of the ancient Greeks.

Learn how the US tax code works and why it's important

First published in 1926, the US Code is the official codification of federal statutes in the US. Title 26 of the US Code, for instance, lists all of the federal tax laws of the United States. A new edition is published every six years.

Trademarks protect the branding of a service or product, while patents protect the product or service itself

Trademark protections cover the branding of a service or product, like its logo, its smell, or even its shape. However, patent protections give inventors exclusive control over a new product—as long as those inventors disclose how the product works and how they made it.

Read the books of Henry David Thoreau

Thoreau's books are all in the public domain, which means they're free from copyright—and free for you. Project Gutenberg has the landmark text "Walden," as well as lesser-known works such as "A Week on the Concord and Merrimack Rivers" and "The Maine Woods."

The Ninth Amendment clarifies that people hold additional rights, not granted by the Constitution

The Founders worried that listing specific rights might imply that others didn't exist. The Ninth clarifies that unenumerated rights are retained by the people, making it one of the most philosophical and least litigated amendments.

Open-end and closed-end funds differ in how they create and distribute shares

Open-end funds are able to create new shares on a daily basis, while closed-end funds have a set number of shares. This impacts the way shares are traded on the open market, and the way they’re priced.

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.

How ChatGPT learns to read

The introduction of ChatGPT last fall jumpstarted public interest in the future capabilities of artificial intelligence and what it means for society. Of many somewhat "jargony" terms thrown around, the phrase "Large Language Model" is commonly seen—but also incredibly unclear as to what it means. In the simplest sense, the programs comb through mountains of internet data in response to a question and guess at what should come next (subscription needed).

What exactly is a GMO?

A GMO, or genetically modified organism, is an organism whose DNA has been altered for specific improvement such as longer shelf life, disease resistance, or enhanced nutrition—which can benefit both farmers and consumers. While humans have used...

Free agency dramatically changed player compensation

When team owners created the reserve clause in 1879, the idea was that each team would control player salaries rather than the open market. After the 1975 elimination of the reserve clause, players became eligible for free agency after a contract expired, increasing wages across the league.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Radioactive elements can introduce software errors because the ionizing radiation they produce can detach electrons from atoms, and computer code relies on the distribution of electrons.

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.

Hedge funds, the private investment firms that trade a wide swath of financial assets, make money by imposing steep fees on investors and from the fund's investment performance.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

While the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

The Brothers Grimm were lawyers before they were storytellers, and became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.

The USPS spent $3.97B in 2024, accounting for .058% of the federal budget.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

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

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

Ebola is a filovirus, meaning it resembles a thread under a microscope, though it sometimes twists and can resemble a bowl of spaghetti.