Undergraduate Shira Rubin gamely demonstrates the Gesundheit machine, which collects samples of virus from the breath that sick students exhale. Rubin helps Dr. Somayeh Youssefi (left) set up the machine before patients use it.
On March 1, 1954, the U.S. conducted its largest nuclear test with a yield of 15 megatons. The new Russian weapon would be up to 100 megatons, according to reports.
USAF Lookout Moutain Laboratory
Kenya's opposition leader Raila Odinga holds up a Bible as he swears himself in as the "people's president" on Tuesday in Nairobi. Authorities shut the top three independent TV channels ahead of the event. They remain closed.
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