Enigma: No. 827 Four squares HARRY, Tom and I were challenged to find four perfect squares, two consisting of three digits, one of two digits and one of one digit, such that each of the nine digits 1-9 was used once. We each produced a different valid solution, but each of their solution had one number in common with mine. … News
Robbing the poor? IN America's south east, the first crop is being gathered from Calgene's genetically engineered strain of a rapeseed plant – and along with it, the inevitable complaints that biotechnology threatens the economies of poor nations. The plant has been engineered to produce lauric acid, used in soaps and cosmetics, and currently produced from coconut or … Opinion
Fair shares for all SHARING has never been a human strong point, and working out how to divide up goods and land, benefits and hardships, can at times tax even the greatest diplomatic and legal minds. What is really needed to avoid conflict and heartache is a way to divide things between people that is proportional in the sense … Features
The paper chase extends to Asia UNIVERSITY researchers in Australia are steadily increasing the amount of research they do with collaborators overseas. But increasingly the name of the co-author is likely to be Li or Yamaha rather than Jones or Smith. In other words, there is a noticeable shift towards more collaborative research with the countries of East Asia, especially Japan … Forum
Feedback STUDENTS of the delicate art of putting the past into the best possible light should read "Legacy of the X-ray Laser Program" in Energy and Technology Review, the house magazine of the Lawrence Livermore National Laboratory in California. It describes the "legacy of new technologies for industrial and medical use" left by one of the … Regulars