Nobody has attempted the Britlish Challenge Eratosthenes Challenge yet. Why not be the first to get your name on the leaderboard? Your results will be found in your Study Record if you have a free Britlish account.
I asked the OpenAI ChatGPT: “How did Eratosthenes calculate the size of the Earth and how accurate was he?” I put what it said in this challenge. Watch the video and do the lesson that goes with this challenge, then you should know enough about Eratosthenes and how he measured the world over two thousand years ago to get a perfect score in this challenge.
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The Britlish Library is a free online resource funded entirely by the creator, Richard, and Britlish Patrons. The Britlish Library is not a subscription-based service, and there is no intrusive advertising on site. All users, regardless of whether they become Patrons, have access to the same materials and resources on the site. I believe that the Britlish Library is a valuable resource that should be accessible to all, regardless of their ability to contribute financially. My goal is to provide a sustainable and free platform for language learners and teachers worldwide, and I hope that Britlish Patrons will continue to support me in this mission. A big thank you to the Britlish Patrons who have generously given €27.00 during the past 30 days in support of the Britlish Library.
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Create a FREE account to access the Study Record and track your progress in the hundreds of British English Activities in the Britlish Library. Whether you're a student, teacher of English as a second or foreign language, or simply want to improve your English skills or learn something interesting, the Britlish Library has interactive British English lessons for all levels, from beginners to advanced learners. With your Study Record, you can see how you're improving in different skill areas through the Challenge Tests you complete. Track your progress as you enhance your writing, speaking, listening, and reading skills today by creating a FREE account with the Britlish Library.