Using high-tech radar scans, archeologists in Norway recently detected the outline of one of the largest Viking ship graves ever found. The 66-foot-long vessel served as a giant coffin for a Viking king or queen buried more than 1,000 years ago, National Geographic reported.
The ship, which harbors at least seven other burial mounds, lies about 1.6 feet beneath a field near the Norwegian capital of Oslo. The hull is visible, and the keel and floor timbers appear well-preserved. It is only the third such Viking ship burial found so far.
The find especially excites researchers because recent advances in archeological technology will allow them to glean more information from this ship than ever before. They hope to avoid excavating the vessel, which would risk damage by open air exposure. —J.B.
Environmentalists often tout wind power as a clean alternative to burning fossil fuels. But, according to a recent study, large scale wind generation, which redistributes heat in the atmosphere, would warm the continental United States by 0.43 degrees Fahrenheit. “Wind turbines generate electricity but also alter the atmospheric flow,” Lee Miller, one of the researchers, said in a statement.
The scientists arrived at the warming figure by using a standard weather forecasting model and adding in the atmospheric effect of covering one-third of the continental United States with enough wind turbines to meet present-day electricity demands. They found that it would take about a century to offset the warming effect.
According to the researchers, more than 10 previous studies also observed warming caused by wind farms. —J.B