Tar Balls From 1964 Valdez Spill Rewrite Sound’s History
Analyses show tar balls found after the Exxon Valdez spill match oil from wells off California and date to 1964 earthquake damage in Valdez. The 1964 release released petroleum into Prince William Sound, not the 1989 spill.
MENTIONED IN THIS ARTICLE
Alaska
Prince William Sound
Exxon
Environmental Science & Technology
Valdez
California
Snowflakes Form From Water Vapor Through Sublimation
Snow forms when water vapor bypasses liquid and changes directly to ice. Each flake starts as a tiny six sided hexagonal crystal and grows fastest at the six points exposed to vapor from all directions, creating intricate shapes.
Software firms rush into ACT and SAT prep market
A growing wave of educational software publishers targets ACT and SAT prep as millions of students prepare for college. Programs from Princeton Review, College Board and Kaplan use multimedia PC formats with feedback, simulations, and even humor to boost scores, while prices start around 300 dollars.
MENTIONED IN THIS ARTICLE
Vivian Marine
AP Business
York
College Board
American College Testing Program
James Reynolds
Electronic Publishing
Princeton Review
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