Uncategorized
- Chemistry
Questions of Origin
Two new studies renew controversy about the authenticity of a map that may be the first depiction of North America.
- Materials Science
Vision Quest
Increasing numbers of people with less-than-perfect vision can now wear contact lenses, thanks to innovations in lens design and materials.
- Animals
Bees log flight distances, train with maps
After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.
- Earth
DDT treatment turns male fish into mothers
Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.
