Previous submission with some discussion: <a href="https://news.ycombinator.com/item?id=6867962" rel="nofollow">https://news.ycombinator.com/item?id=6867962</a> (over 20 comments)<p>More comments here: <a href="https://news.ycombinator.com/item?id=6858585" rel="nofollow">https://news.ycombinator.com/item?id=6858585</a> (a few comments)<p>Other submissions without comment:<p><a href="https://news.ycombinator.com/item?id=6879947" rel="nofollow">https://news.ycombinator.com/item?id=6879947</a><p><a href="https://news.ycombinator.com/item?id=6857995" rel="nofollow">https://news.ycombinator.com/item?id=6857995</a><p><a href="https://news.ycombinator.com/item?id=6857778" rel="nofollow">https://news.ycombinator.com/item?id=6857778</a><p><a href="https://news.ycombinator.com/item?id=6856892" rel="nofollow">https://news.ycombinator.com/item?id=6856892</a><p><a href="https://news.ycombinator.com/item?id=6603567" rel="nofollow">https://news.ycombinator.com/item?id=6603567</a><p>There will be more - these are just the ones I found with this search:<p><a href="https://www.hnsearch.com/search#request/all&q=title%3A%28copenhagen+wheel%29&sortby=create_ts+desc&start=0" rel="nofollow">https://www.hnsearch.com/search#request/all&q=title%3A%28cop...</a>