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Moment of truth
The Voyager I spacecraft is the most distant man-made object in the universe. It was launched in 1977 and as in 2002, it was more than 8 billions miles from the Earth.


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tularemia Med.
Also known as rabbit fever. It is an infection caused by Francisella tularensis bacterium, a highly infectious organism. The disease can be transmitted to human through fly, mosquito or tick bites. It usually occur in North America and parts of Europe and Asia, especially in farm areas, where infected animals such as squirrels and rabbits have been living. The transmission occurs via inhalation or direct contact with animals.

Symptoms can occur few weeks after infection which include ulcer on skin, enlarged lymph nodes, muscle pains, fever, sweating, joint stifness, shortness of breath. Mortality rate is about 5% if untreated. Antibiotic such as Streptomycin and tetracycline are commonly used in the treatment for such infection. The bacterium has been considered as a potential bioterrorism agent, possibly in the form of aerosol release.

turgor pressure Bot.
The hydrostatic pressure of the contents of a plant cell. This pressure can be maintained by movement of water via osmosis into the cell. As a result, a positive pressure builds up at the cell wall and causes plants from drooping. Loss of turgor pressure (not enough water) will cause plants to wilt.

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