Dr Tom Crawford
@tomrocksmaths.bsky.social
Mathematician at Oxford and Cambridge. 225,000 on YouTube. Numberphile. Tom Rocks Maths. Countdown.
Are you even a tourist in Sri Lanka if you don’t take the train ride across the mountains to Ella? Simply breathtaking.
It took 7 hours and 20 minutes to travel from Nanu Oya to Colombo at an average speed of 28 kmph. How long is the railway?
Try it without a calculator for a challenge :)
It took 7 hours and 20 minutes to travel from Nanu Oya to Colombo at an average speed of 28 kmph. How long is the railway?
Try it without a calculator for a challenge :)
November 11, 2025 at 5:42 PM
Are you even a tourist in Sri Lanka if you don’t take the train ride across the mountains to Ella? Simply breathtaking.
It took 7 hours and 20 minutes to travel from Nanu Oya to Colombo at an average speed of 28 kmph. How long is the railway?
Try it without a calculator for a challenge :)
It took 7 hours and 20 minutes to travel from Nanu Oya to Colombo at an average speed of 28 kmph. How long is the railway?
Try it without a calculator for a challenge :)