[BLOG] Some Wednesday links

• Citizen Science Salon links to some ongoing crowdsourced experiments that non-scientists can take part in.
• The LRB Blog reports on the return of Newt Gingrich to the American political scene.
• The NYR Daily compares Donald Trump to a 19th century counterpart, Andrew Jackson.
• Roads and Kingdoms reports on the now rather different cocaine problem of Medellín, Colombia.
• Starts with a Bang’s Ethan Siegel reports on a paper suggesting potential problems with gravitational observatory LIGO.
• Towleroad notes a recent sharp drop in new HIV diagnoses in the United Kingdom, thanks to treatment and PrEP.
• Window on Eurasia reports on projected long-run economic decline in Russia, argues about the potential for instability in Tatarstan, and reports on Belarusianization.
• Arnold Zwicky describes Silver Age Rainbow Batman and his later pride appearances.