Raise the Bar: Where Lightning Strikes on Earth
An interactive map of sixteen years of NASA lightning data: raise the threshold yourself and watch the continents go dark until two places are left, the brighter one over water, Lake Maracaibo.
Something to discover, read or try
Explore original Coru publications for everyday life, curiosity and enjoyment. Find a useful idea, a fresh perspective or a good story.
Play something
Please Don’t Clap
Every clap produces another rabbit from the hat. You are the magician’s assistant, and the audience loves it. An interactive comedy with three endings.
Grandma Stole Her Own Cake
Grandma is eighty. Her family is preparing speeches. She is preparing an escape. Find the cake box, then decide what to tell the guests: a short story with a fair clue.
New on Coru
The greenhouses that outshine cities
NASA's 2024 night lights: the brightest points of Finland and the Russian plain are not cities but greenhouses under lamps. How much light a tomato needs, why a winter window is not enough and what a grow lamp really gives.
You don’t know this language. Which crate will you open?
A picture puzzle: work out an invented language from labelled crates and a storekeeper’s notes, then open the right crate. Three rounds, no dictionary.
Between
Five scenes about one question: is there someone inside? A drop on the glass, a blind neuron, a laboratory at night, a mother's hand, and the voice that generated this text. A story.
He Is Making Gold. Where Did the Money Go?
An empty purse, a coin above a crucible, a child wearing a cooking pot. Follow three clues through one engraving to find a family's future hiding in plain sight.
A bank arrived by mail. Ten bricks at a time
In 1916, 1,500 crates of bricks travelled by mail to face a bank in Vernal, Utah. Why was postage cheaper than freight, and what rule had to change?
I’d Like My Tuesday Back
Lida cannot return a day until the case is closed. The customer will not close the case until he gets his day back. A short absurdist comedy.
Explore a topic
Cities and places
Original place narratives and visual explanations grounded in historical records and observable urban details.
Art and culture
Original close-looking essays and cultural explorations grounded in the works and their sources.
Everyday documents
Tested ways to inspect, prepare and verify everyday documents, with original examples and clear limits.
Everyday life
Original examples, messages and practical ideas for everyday situations.
Food
Original practical cooking instructions, food observation guides, sensory vocabulary and printable activities for everyday readers.
Gardening
Original practical gardening materials and observation sheets grounded in horticultural sources, with local conditions and uncertainty made explicit.
Ideas to explore
Original accessible thought experiments and arguments that help readers articulate, test and reconsider their own criteria.
Languages
Original contextual language exercises, short conversations and clear explanations grounded in usage sources.
Learning
Original study exercises and reusable tools grounded in learning research, with worked examples and clear limits.
Nature
Original outdoor observation activities, field notes and explanations of natural-history mechanisms grounded in natural-history sources, separating observations from uncertain identifications and respecting wildlife.
Play and imagination
Original complete games, playful stories and imaginative activities that can be tried immediately, with clear rules and no required purchase.
Practical spreadsheets and data
Practical worked examples for preserving data, checking imports and understanding spreadsheet results.
Building useful websites
Practical guides to readable pages, clear links and reliable website features.
Everyday science
Original explanations, diagrams and simple observation activities grounded in primary scientific sources, with clear limits on what observations show.
Everyday shopping
Original worked comparisons and practical exercises for understanding purchases and choosing what fits a concrete need.
Sports
Original visual explanations, small decision exercises and practical ways to understand sports.
Short stories
Original short stories for a spare moment: comedy, memorable characters and complete endings.
Working together
Original worked examples and reusable templates for clear communication, shared decisions and practical coordination.
Contact
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