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As the economists Ed Glaeser and Matt Kahn have written, while in 1940 most jobs were located close to the urban core, by 1996, only 16 percent of jobs were within three miles of a city’s central business district: “The dense, walking city of the 19th century has been replaced by the medium density, driving city of today.”
What’s Causing Black Flight?
theatlantic.com
In a murmuration, each bird sees, on average, the seven birds nearest it and adjusts its own behavior in response. If its nearest neighbors move left, the bird usually moves left. If they move right, the bird usually moves right. The bird does not know the flock’s ultimate destination and can make no radical change to the whole. But each of these birds’ small alterations, when occurring in rapid sequence, shift the course of the whole, creating mesmerizing patterns.
How Online Mobs Act Like Flocks of Birds | NOEMA
Renée DiResta
The result is that for the BEV, you have been able to use around 73% of your original electricity for propulsion, but just 23% for with the FCEV. In other words, you will need around three times as much electricity to propel your FCEV the same distance as your BEV.
Why Are We Still Talking About Hydrogen?
James Morris
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