How Many Letters Are In The Answer?

Could identical twins commit the perfect crime?

The DNA in twins is (almost) exactly the same. So how could a team of forensic scientists tell which twin committed the crime? There is a way but it has some issues...

Audio Palindromes

The Ambitrope Coin

https://www.curiositybox.com/

How Many People Are In Space Right Now

One number, kept honest. Somebody is up there while you read this, and here is who.

Internet Roadtrip

Thousands of strangers vote on every turn, driving one shared car across Street View.

Neal.fun

The index — every one of Neal Agarwal’s toys and experiments in one place.

Bored Button

One button, one random toy or game, over and over until something sticks.

The Zoomquilt

A painting that falls into itself forever, hand-made by a dozen artists.

Internal Combustion Engine

Take an engine apart stroke by stroke and see what each part is actually for.

The Useless Web

Random journey through curated weird, wonderful, or pointless websites on the internet.

This Person Does Not Exist

AI-generated portrait of a person who doesn't exist, refreshed each reload.

Pointer Pointer

Playful experience where pointer cursor follows a dancing character around screen.

Sandspiel: A Falling-Sand World

Falling-sand simulation lets you build worlds with emergent physics and chemistry.

Windows 93: A Fever-Dream OS

Nostalgic operating system emulation blending retro Windows aesthetic with surreal interactive toys.

The Password Game

Create a password meeting increasingly absurd requirements.

Infinite Craft

Combine elements infinitely to discover new creations in this relaxing sandbox game.

The Museum of Failed Products

Gallery of real consumer products that failed spectacularly despite company investment.

The Size of Space

Immersive visualization comparing cosmic distances from atoms to universe scale.

The Deep Sea

Interactive journey exploring bizarre creatures and extreme conditions of ocean depths.

The Bizarre Behaviour of Rotating Bodies

Counterintuitive physics of spinning objects defying expectation through demonstration.

Learn to Pick a Lock

Techniques and practice strategies for opening locks without keys.

The Easiest Problem Everyone Gets Wrong

A probability puzzle that trips up most people despite seeming simple.

Prince Rupert's Drop Exploding in Epoxy

Slow-motion footage of Prince Rupert's Drops shattering inside hardened epoxy resin.