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It is called a tokamak—old Soviet shorthand for a more precise and geometrical name, toroidalnaya kamera s aksialnym magnitnym polem, or “toroidal chamber with an axial magnetic field.” Sakharov’s rough sketch depicted a doughnut-shaped vacuum chamber, or torus, ringed with electromagnets, and that is how iter’s core…
With Cosmos, Sagan sought to put an end to the fear and to inspire the kind of wonder Hubble's lectures had inspired in the 1930s and 1940s and the Moon landing had inspired in 1969. The series was enormously successful. For the first time since Hubble, a huge audience was engaged in exploring the grand questions of…
The rub, of course, is that everybody else thinks that science should provide the answers. Remember the Concorde? Back in the early 1970s, Congress was debating supersonic transport, trying to decide whether such aircraft would represent a danger when flown over the United States. Would their big engines flying high…
The study looked at the average pregnancy term, breast-feeding length and brain size of 128 species of mammals. They saw that between different species brain size at birth was determined by the length of pregnancy, while the brain growth after birth was determined by breast-feeding duration. [...] The extreme length…
"Children who had the greatest self-control in primary school and preschool ages were most likely to have fewer health problems when they reached their 30s," says Terrie Moffitt, a professor of psychology at Duke University and King's College London. Moffitt and a team of researchers studied a group of 1,000 people…