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Issues
April 1993
ISSN 0031-9228
EISSN 1945-0699
Reference Frame
Letters
Negotiating the Tricky Border Between Quantum and Classical
James L. Anderson; GianCarlo Ghirardi; Renata Grassi; Philip Pearle; Nicolas Gisin; David Z. Albert; Gerald Feinberg; Peter R. Holland; Vinay Ambegaokar; Kenneth J. Epstein; Wojciech H. Zurek
Physics Today 46 (4), 13–90 (1993);
https://doi.org/10.1063/1.2808860
Search and Discovery
Articles
The Search for Forming Planetary Systems
Physics Today 46 (4), 22–29 (1993);
https://doi.org/10.1063/1.881387
Planet formation used to be a subject for speculative natural history. Now it is an active field of observational astronomy, and the evidence is that planetary systems are abundant.
The Introductory University Physics Project
Physics Today 46 (4), 32–37 (1993);
https://doi.org/10.1063/1.881388
Models are being developed for o new calculus‐based introductory physics course that would incorporate more 20th‐century physics.
Career Choices
Washington Reports
Physics Community
Opinion
Books
Single Charge Tunneling: Coulomb Blockade Phenomena in Nanostructures
Physics Today 46 (4), 62–63 (1993);
https://doi.org/10.1063/1.2808874
New Products
We Hear That
Obituaries
A health sensor powered by sweat
Alex Lopatka
Origami-inspired robot folds into more than 1000 shapes
Jennifer Sieben
Careers by the numbers
Richard J. Fitzgerald