Newton the Alchemist

1 http://webapp1.dlib.indiana.edu/newton/.

The Many Errors of Einstein

1 The direct observation of gravitational waves was achieved on 14 September 2015, five months after the publication of this article. It was followed in 2017 by the Nobel Prize for physics.

Black Holes I: The Fatal Attraction of Stars

1 Five years after the writing of this article, the network of radio antennae did indeed succeed in capturing the first image of a galactic black hole. The image has since become famous all over the world.

Traditional Medicine and UNESCO

1 In 2018, Tibetan medicine was added by UNESCO to the list of the Intangible Cultural Heritage of Humanity.