11 / Tools
Interactive Stephen Hawking Tools
Play with the physics that defined Hawking's career: a black hole calculator, a time-dilation explorer, a black hole size comparison, and quizzes to test your knowledge and find your next book.
The best way to understand Stephen Hawking's universe is to play with it. These free interactive tools turn his ideas into something you can explore for yourself, from the equation carved on his memorial stone to the warping of time near a black hole.
Try the black hole calculator to see how mass sets a black hole's size, temperature and lifetime; explore time dilation to feel the Interstellar effect; compare the sizes of black holes from stellar to supermassive; find your ideal starting book with the book quiz; or test your knowledge of his life and science.
Black Hole Calculator: Size, Temperature & Lifetime
A free interactive black hole calculator. Set the mass and instantly see the Schwarzschild radius, the Hawking temperature, and how long the black hole would take to evaporate.
Read →Time Dilation Calculator: The Interstellar Effect
A free interactive time-dilation calculator. See how time slows down when you travel near the speed of light, or sit close to a black hole, the real physics behind Interstellar.
Read →Black Hole Size Comparison
How big are black holes really? Compare the sizes of a stellar black hole, Sagittarius A*, Interstellar's Gargantua and the giant M87*, against the Earth and the Sun.
Read →Which Stephen Hawking Book Should You Read? (Quiz)
Take this quick quiz to find the perfect Stephen Hawking book for you. Answer a few questions about what you enjoy, and get a personalised recommendation from his eight books.
Read →Penrose Diagrams Explained (Interactive)
What is a Penrose diagram? An interactive, visual explainer of the spacetime diagrams Hawking and Penrose used to map black holes, from flat space to a collapsing star.
Read →The Stephen Hawking Quiz: Test Your Knowledge
How well do you know Stephen Hawking? Take this free quiz on his life, his science and his ideas, with explanations for every answer, and see how you score.
Read →- Paid tool
The Stephen Hawking Claude Skill
Install Stephen Hawking's way of thinking into your AI. His mental models, heuristics and signature questions, engineered as a native Claude Skill and a plain .md for any LLM.
A paid Claude Skill on a third-party site (authority.md). Proceeds support MND research.
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