Archive: 07/5/2007

Prion propagates in foreign host

Prions -- infectious, oddly-folded proteins that are the main suspects in fatal neurodegenerative diseases such as Cruetzfeldt-Jakob and bovine spongiform encephalopathy, or "mad cow" -- remain mostly a mystery to scientists. ...

Jul 05, 2007
4.3 / 5 (4) 0

Kamchatka volcano blows its top

Klyuchevskoy (pronounced Kloo-shef-skoy), a stratovolcano located in the north central region of the Kamchatka Peninsula, is blasting ash up to 32,000 feet in the air, and has diverted air traffic headed toward ...

Jul 05, 2007
4.5 / 5 (15) 0

Holograms make for better vision tests

A new paper published in the July 1 issue of OSA's Optics Letters shows that researchers in Australia have created a new one-step test that uses holograms to diagnose the astigmatic error of the human eye, a key measurement in det ...

Jul 05, 2007
4.3 / 5 (4) 0

Chickens also orientate themselves by the Earth's magnetic field

40 years ago, Prof. Dr. Wolfgang Wiltschko was the first to prove that migrating robins use the Earth’s magnetic field to direct themselves during migration. Their magnetic sensor showed them the course of the field lines ...

Jul 05, 2007
4.8 / 5 (5) 0

Butterfly's DNA may alter Ice Age data

Discoveries of a butterfly species' DNA in the Far East and Western Europe may rewrite the known history of the Pleistocene Ice Age.

Jul 05, 2007
4.4 / 5 (10) 0
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