Princeton University offers a free online bitcoin course

A definitive guide to crypto and blockchain

The concept of cryptocurrency emerged more than a decade ago, with a famous whitepaper on bitcoin. To fully understand the rise of bitcoin, Bloomberg’s Matt Levine developed this comprehensive four-part series exploring the broader crypto and blockchain ecosystems, where they came from and how they work (subscription required).

Bitcoin explained and made simple

Bitcoin, the most popular and well-known example of a cryptocurrency, came on the scene around 2010, with its evangelists proclaiming it would eventually displace government-backed traditional cash. While the concept of a digital currency may seem straightforward, the details can be deceptively simple. This quick video overview provides the foundation for a deeper dive into the world of decentralized currency.

Bitcoin started as a .PDF

Have you ever wondered how bitcoin became, well, bitcoin? In this podcast episode, journalist PJ Vogt dives into what drove the bitcoin hype machine, explaining how it became the phenomenon it is today.

What is blockchain? A visual explanation from a Stanford professor

Stanford professor Dan Boneh teaches “Blockchain Primitives: Cryptography and Consensus,” providing an introduction to the cryptographic foundation of blockchains and how developers can use them to build new types of applications.

Four video explainers on quantum fundamentals

Ready to level up your working knowledge of quantum mechanics? Check out these four TED-Ed Lessons written by Chad Orzel, associate professor in the Department of Physics and Astronomy at Union College

Take Yale's free online course, 'The Science of Well-Being'

Considered Yale University's most popular free online course, this 10-module series offers insights into the science of well-being and practical ways to increase happiness and satisfaction. More than 5 million people have enrolled since its 2018 launch.

Since its introduction, the price of bitcoin has experienced significant volatility

Driven in large part by speculation and intense social media attention during the pandemic, along with the availability of capital during near-zero interest rate periods, the price has seen at least three major crashes despite steadily increasing over the long run since 2014.

When he first enrolled at Princeton University, Jeff Bezos wanted to study physics

He later changed his major to electrical engineering and computer science. He graduated Summa Cum Laude and received job offers at Intel, Nokia, and Accenture, but he declined those offers in favor of a job at a fintech startup.

Learn about the US opioid crisis in this free course

Where did the US opioid crisis come from, and how did it spread? Learn this and more in this free, online Harvard University course. Learn about the disease model of addiction treatment and management, and get up-to-date with public health and law enforcement's current harm reduction practices. This free resource gives users a greater understanding of opioid addiction and the epidemic still haunting the US.

Hear a finance professor answer questions about investing

From stocks and index funds to gold, a business professor at Duke University answers questions from the internet about investing.

There's a college course teaching influencing 101

A class at Duke University called Building Global Audiences promises to teach students how to grow their social media followings, master the art of content creation, and, of course, eventually monetize it all. One writer took the class and wrote about what it was like to be a student.

Bitcoin's founder has always remained anonymous

A pseudonym used by the person or group of people who created bitcoin—the first decentralized cryptocurrency—the real identity of Satoshi Nakamoto has baffled millions of enthusiasts for years.

Ride along on one coffee company’s journey through the stock market

From going public with an initial public offering, to struggling with how negative news coverage impacts a stock’s value, this video lets you put yourself in the shoes of a newly public company. This makes learning about the inner workings of the stock market much easier.

Albert Einstein taught courses in Davos

This silent video from the 1920s shows footage of Einstein at Davos. The famous scientist spent time there, delivering public lectures on his theory of relativity as part of the town’s university courses.

Explore 25 of the world's richest universities beyond the US

This article from The College Post highlights 25 of the wealthiest universities outside the United States. It showcases institutions like King Abdullah University of Science and Technology (KAUST), the University of Oxford, and the University of Hong Kong. Learn more about the global landscape of higher education funding.

Explore Anthropic Academy, which provides courses on using Claude

The online courses include Claude Code in Action, which teaches software developers how to integrate Claude Code into existing workflows; Claude 101, to learn how Claude can be used to complete everyday tasks; and an AI Fluency series to help educators, instructional designers, and students learn to apply AI in academic settings.

Watch a cybersecurity expert answers questions about hacking

From firewalls and VPNs to ransomware and viruses, IBM Distinguished Engineer Jeff Crume has seen many changes in cybersecurity during his 40 years of IT experience. In this video, he explores some of the most significant hacking events in history and provides advice on protecting yourself online.

Student debt is a trillion-dollar question

Former Purdue University president Mitch Daniels and others discuss the student debt crisis. This episode digs into how we got here, whether college is worth borrowing for, how to address the economic drag of student debt, and whether alternative routes to a four-year degree could be part of the solution.

A 12-minute crash course on Islam, its beliefs, and history

John Green's Crash Course World History episode overs Islam's core tenets, the Five Pillars, and the religions spread across continents in a jam-packed video under 15 minutes. The video is an efficient on-ramp for newcomers and is an ideal starting point to Islam.

There's a bitcoin mine in remote Zambia

In Zambia, a small hydropower plant draws water to power a town of 15,000 people—and a bitcoin mine. A shipping container containing 120 computers mining bitcoin—solving complex calculations to win the reward of several bitcoin—was set up near the plant to use its cheap electricity, and share its revenue.

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.

Fan fiction is now studied at universities, including Princeton and Harvard

Some professors approach the genre as a unique form of literature that expands the boundaries of art. Comparative literature courses read the source material as well as its fan fiction byproducts, asking students to analyze the conditions that might've produced such dramatic reinterpretations.

The Amazon Prime subscription service offers its members a variety of benefits, including free two-day shipping on eligible items

Prime also offers members access to streaming video and music, and exclusive deals. As of this writing, its annual price tag is $139. A CNBC article sets out to address whether the subscription is worth that price, outlining the service’s key perks and who’s likely to benefit from it the most.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

Master the banking basics

Before deciding on a credit union, it’s important that you understand the basics. That way you can know exactly what’s happening with your hard-earned money behind the scenes. Flip through these flashcards to make sure you understand key terms like “deposit” and “checking account.” Then, you can read up on top banking products and start to find a credit union that works for you. Click here, then scroll down the page to find the cards.

Donald Trump's Truth Social social media platform is launching a prediction market

Named "Truth Predict," the cryptocurrency-based prediction market will allow users of the Truth Social social media platform to place crypto bets on the outcome of certain events (think: sports games, the economy, and political races). Truth Social is primarily owned by President Donald Trump and his family.

Photos of Sam Bankman-Fried's $35M Bahamas home

Sam Bankman-Fried, the 31-year-old founder of the cryptocurrency exchange FTX, traded his luxury Bahamian penthouse for a courtroom and jailhouse. As part of his trial, the prosecution looked into his multimillion-dollar home in the Bahamas he...

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

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

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

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

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

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

Explore the known asteroids, comets, and spacecraft involved in asteroid studies within our solar system with 'Eyes on Asteroids,' a 3D visualization from NASA.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Watch contemporary footage covering the US-backed Shah of Iran fleeing the country in the face of the 1979 Iranian Revolution

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

In recent years a child anxiety expert has created and tested a novel phobia and anxiety treatment approach for children, focused on changing how parents respond to the fears.

Against his wishes, Albert Einstein's brain was removed before his cremation, and the pathologist responsible stored it for decades in mason jars within a beer cooler.

Watch how viruses like Ebola can spill over from animals to humans—and vice-versa.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

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

Prince's sexually explicit 1984 track 'Darling Nikki' attracted the ire of the Parents Music Resource Center, an advocacy group that inspired the Parental Advisory sticker, even though the song ends with a Christian message.