Diseases, Conditions, Syndromes

Norovirus: What to know and how to avoid it

If you've been bit by a stomach bug lately, you're not alone. The Centers for Disease Control and Prevention (CDC) is reporting significant norovirus activity across the country, especially in the West and Northeast.

Diseases, Conditions, Syndromes

Norovirus: What to know and how to avoid it

Noroviruses are usually more widespread in the fall and winter, but you can get sick from the virus any time of the year. The Centers for Disease Control and Prevention (CDC) says norovirus is the leading cause of vomiting ...

Neuroscience

Scientists reveal structures of neurotransmitter transporter

Neurons talk to each other using chemical signals called neurotransmitters. Scientists at St. Jude Children's Research Hospital have drawn on structural biology expertise to determine structures of vesicular monoamine transporter ...

Diseases, Conditions, Syndromes

Portable laboratory device can detect SARS-CoV-2

A new study has demonstrated rapid and sensitive on-site detection of SARS-CoV-2 RNA from environmental surfaces using a portable laboratory device. The study was published in Microbiology Spectrum.

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Ship

A ship /ʃɪp/ Audio (US) (help·info) is a large vessel that floats on water. Ships are generally distinguished from boats based on size and passenger capacity. Ships may be found on lakes, seas, and rivers and they allow for a variety of activities, such as the transport of people or goods, fishing, entertainment, public safety, and warfare.

Ships and boats have developed alongside mankind. In major wars, and in day to day life, they have become an integral part of modern commercial and military systems. Fishing boats are used by millions of fishermen throughout the world. Military forces operate highly sophisticated vessels to transport and support forces ashore. Commercial vessels, nearly 35,000 in number, carried 7.4 billion tons of cargo in 2007.

These vessels were also key in history's great explorations and scientific and technological development. Navigators such as Zheng He spread such inventions as the compass and gunpowder. Ships have been used for such purposes as colonization and the slave trade, and have served scientific, cultural, and humanitarian needs.

As Thor Heyerdahl demonstrated with his tiny boat the Kon-Tiki, it is possible to navigate long distances upon a simple log raft. From Mesolithic canoes to today's powerful nuclear-powered aircraft carriers, ships tell the history of humankind.

This text uses material from Wikipedia, licensed under CC BY-SA