2 ms·
And then, there's the paternoster (no buttons and no stops): https://news.ycombinator.com/item?id=35158625 https://news.ycombinator.com/item?id=35158625
by mhb 4y ago
And then, there's the paternoster (no buttons and no stops):
https://news.ycombinator.com/item?id=35158625 https://news.ycombinator.com/item?id=35158625