This week San Francisco International Airport turns over its new control tower to the Federal Aviation Administration. The FAA will spend a year outfitting the 221-foot, torch-like, flared cylinder with its systems, testing them and training controllers. The concrete spine of the tower is tied, with steel cables, to a 7-foot thick mat foundation, which is supported by 140-foot deep piers that reach the bedrock below. The tower contains two dampers, each 37,400 pounds, which help the shaft to remain still in high winds and to withstand a magnitude 8 earthquake. The FAA provided the majority of the $120 million dollars needed for project.
Five weeks after the terrible earthquake in Nepal which literally shook the Himalayas, researchers from the US claim that they have found the missing pieces of the puzzle on the formation of the highest mountain on Earth. As they mentioned, this creation is the result of a rare geological phenomenon.
Record setting rains that fell on Sunday in Texas and Oklahoma are still wreaking havoc as flooding continues in the region. The storms dumped enough water that the rivers and creek banks were not able to contain all of the wet weather flow. Runoff peaked as late as Monday in these areas causing the National Weather Service to advise of continued flooding threats.