> Hoping to highlight the elusive order in the distribution of the primes, he and his student Ge Zhang had modeled them as a one-dimensional sequence of particles — essentially, little spheres that can scatter light. In computer experiments, they bounced light off long prime sequences, such as the million-or-so primes starting from 10,000,000,019.
It sounds like they simulated shining light on particles that were distributed based on the interval between subsequent primes, then looked for patterns in the resulting diffraction. The title was worded that way for a pun (the chemist revealed interesting information about the pattern by literally shining light on it).
> There was a substantially greater increase in bicycle commuting in the bike-share cities, yet the total number of injuries decreased in bike-share (but not control) cities, again showing that more cycling means safer cycling [7].
... or that the cities built bike lanes next to the bike share stations.
> Individuals with documented helmet use had 2.2 times the odds of non–helmet users of being involved in an injury-related accident
... perhaps because cyclists are more likely to wear helmets in areas with unsafe biking conditions.
> Michigan Central Station stopped serving trains in 1988 with multiple plans to redevelop the building falling through since. The Morouns have owned the building since 2001.
> Facebook also failed to implement some sort of craigslist, which is something that would really serve a big purpose for people in general (advertise for any sort of stuff, jobs, dating, help needed, local announcements...). I don't understand why they don't do that.
That's good for most cases, but I don't think it works for groups of prime cardinality. In addition, the problem often allows each participant to have a different value function (e.g., one person wants lots of pepperoni but the others prefer mushrooms). In such a variant, a team might have problems agreeing on which piece is most desirable.
> Apple has transitioned from a small company with a narrow focus to a really big company with a much broader focus... Amazon, it seems, is more true to their brand.
Exactly. Amazon has always been regarded as a focused webhosting/video streaming/grocery/general store/digital device company. It's not like they started out as a bookstore or something.