According to NASA, the new Earth Gravity Model EGM2020, although not yet released, has been completed, .It will be based on a great deal of new data and will be a valuable addition for regional studies. But, like its predecessors, there is a danger that it will be misused.
Ayn Rand is often credited with having made predictions that later came true, but all she ever did was follow generations of better and wiser people in deploring corruption. When it came to suggesting realistic measures to counter corruption, she failed completely.
Perhaps the most determined of all the women who travelled during the 19th Century was a Viennese widow called Ida Pfeiffer. One of her most dangerous undertakings was to enter, unaccompanied by any other Europeans, into the lands of the Bataks of Sumatra
Plots of earthquake hypocentres on north-south swathes across the Banda Sea show that the northern and southern Wadati-Benioff Zones zones involve the same slab of subducted lithosphere. But can that scoop-shaped slab hang together?
During her 77 year lifetime Ayn Rand experienced disaster in many forms. She knew earthquakes happened. Did she have anything to say about them?
Just as Rose was about to leave Réunion, the French frigate Cybèle anchored in the roads a few cable lengths away and collided with the Uranie, breaking loose an anchor and nearly breaking the bowsprit. Who was this careless and incompetent captain, and why was he in the Indian Ocean?