man-made radiation belt
71Terraforming — The terraforming (literally, Earth shaping ) of a planet, moon, or other body is the hypothetical process of deliberately modifying its atmosphere, temperature, surface topography or ecology to be similar to those of Earth to make it habitable by …
72Orders of magnitude (mass) — Iron weights up to 50 kilograms depicted in Dictionnaire encyclopédique de l épicerie et des industries annexes. To help compare different orders of magnitude, the following list describes various mass levels between 10−36 kg and 1060 kg …
73Sergey Korolyov — Infobox Person name = Sergey Pavlovich Korolyov Сергей Павлович Королёв Сергій Павлович Корольов residence = image size = 225px caption = Sergey Korolyov at the Kapustin Yar firing range in 1953. birth name = birth date = OldStyleDate|January… …
74Industrial Review — ▪ 1994 Introduction The period since 1990 was proving a difficult time for the older industrialized economies, which had suffered from prolonged recession at home, and also for the previously centrally planned economies of Eastern Europe… …
75Tanzania — Tanzanian, n., adj. /tan zeuh nee euh/; Swahili. /tahn zah nee ah/, n. a republic in E Africa formed in 1964 by the merger of the republic of Tanganyika and the former island sultanate of Zanzibar (including Pemba and adjacent small islands).… …
76Voyager program — This article is about the unmanned space probes of the 1970s. For other uses, see Voyager. The trajectories that enabled Voyager spacecraft to visit the outer planets and achieve velocity to escape our solar system The Voyager program is a U.S… …
77Earthquake — For other uses, see Earthquake (disambiguation). Global earthquake epicenters, 1963–1998 …
78Climate change in Australia — Climate change has become a major issue in Australia due to drastic climate events since the turn of the 21st century that have focused government and public attention.[1] Rainfall in Australia has increased slightly over the past century,… …
79Hannes Alfvén — Infobox Scientist name = Hannes Olof Gösta Alfvén imagesize = 180px birth date = birth date|1908|5|30|mf=y birth place = Norrköping,Sweden death date = death date and age|1995|4|2|1908|5|30 death place = Djursholm, Sweden field = Plasma physics… …
80Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… …
