STORY HIGHLIGHTS
- Hear some students pay tribute to veterans of the U.S. Armed Forces
- See how a program connects veterans with the government that they've served
- Find out what happens to items that are left at the Vietnam Memorial
→WORD LIST:
※
◆ 60-Second Science│ ScientificAmerican
Judging a Book by Its Odor
A study in the journal Analytical Chemistry identifies various organic compounds that old books give off and that can be analyzed noninvasively, offering important clues to an historic work's condition and prognosis. Steve Mirsky reports →WORD LIST:
※
沒有留言:
張貼留言