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How to make an EV tire that won’t pollute the environment
(www.theverge.com)
This is a most excellent place for technology news and articles.
Same was in Moscow until Moscow Central Ring was opened and people said "wait, so trains can arrive at 2 minutes interval? Why suburban trains doesn't do same?". And that is how D1-D4 were born with 5m peak hours interval instead of few hours of lunch break.