Dediu Newsletter Vol. 3, N. 10 (34), 6 September 2019: Monthly news and reviews for a better and wiser world

August 2019 was mostly a vacation month, however, between many not so good events, there are also some good news: the American College of Cardiology and the American Heart Association no longer recommend daily low-dose aspirin therapy for the primary prevention of cardiovascular disease; scientists have discovered a way to generate electricity by combining saltwater with rust; Amazon, which has been using drones for U.K. deliveries since 2016, said in June that it expected to start doing so in the U.S. in months. gold has a better return than stocks year-to-date; an ant-sized robot from Georgia Tech harnesses the power of vibration; painless skin patch collects fluid to monitor biomarkers to speed up and simplify routine diagnostic testingIn this 10th newsletter of the third volume, the 34th in total, we included the most relevant news, in a balanced approach, usually directly from the source, to help the general public better understand the realities around us. We included also several nice photos - I thank my wife for her photo assistance. Being well and correctly informed is a sine qua non requirement for everybody, in order to make the right decisions for the future, which future begins to take shape in our new chapter The Future of People on Earth .This newsletter provides the information needed for making the best-informed decisions.Enjoy this newsletter and be optimist!