Stanford News: Stanford scans storied Judah railroad map

Stanford News: Stanford scans storied Judah railroad map. “Stanford Libraries has scanned an 1861 map depicting a proposed route for the railroad that eventually connected California with the rest of the country, making the one-of-a-kind map available for online viewing by people around the world. The Central Pacific Railroad Proposed Alignment Map, which is 66 feet long and 2.5 feet wide, comprises four maps on one continuous roll. “

Daily Leader: New MDOT site shows road and bridge data

Daily Leader: New MDOT site shows road and bridge data. “A new Mississippi Department of Transportation data website can tell county residents something they already know — some state maintained roads are in lousy shape. The new website, MDOT Public Accountability Transportation Hub or PATH, provides an interactive visual analysis of historical and current statewide road and bridge conditions.”

Thames Water: New 150-year digital archive captures growth of London

Thames Water: New 150-year digital archive captures growth of London. “Thousands of never-before-seen images documenting Thames Water’s past and the growth of London are now available to the public after a mammoth archiving project. The historic photographs of iconic and critical sites, including Walthamstow reservoirs, Abbey Mills pumping station and Beckton sewage works, from across the capital span almost a century, from 1886 to 1976, and can be downloaded for free.”

US Army Corps of Engineers: USACE Opens Updated National Levee Database

US Army Corps of Engineers: USACE Opens Updated National Levee Database. “The database includes attributes of levees and floodwalls relevant to flood fighting, design, construction, operation, maintenance, repair and inspection. Because the location and characteristics of levee systems can be viewed on a map with real-time data from other sources, such as stream gauges and weather radar, it is a useful tool for a variety of public agencies and individuals including flood plain managers, emergency management agencies, levee system sponsors and citizens who live or work behind a levee. Currently the NLD includes information on approximately 33,000 miles of levee, which includes 14,500 miles of levees systems associated with USACE programs, 15,000 miles from the FEMA mid-term levee inventory and several other states and federal agencies.”

Phys .org: Know your cement, get greener concrete

Phys.org: Know your cement, get greener concrete. “An international team of scientists has created a new database of molecular dynamics models that simulate the properties of cement in all its varieties. It’s intended to help fine-tune this component of concrete and curtail emissions in its manufacturing process. Cement is used to bind concrete, the most-used construction material in the world and a significant source of atmospheric carbon dioxide. Its manufacturing contributes as much as 8 percent of the greenhouse gas to the atmosphere.”

Wolfram|Alpha: How to Use Your Smartphone for Vibration Analysis, Part 1: The Wolfram Language

From Wolfram|Alpha: How to Use Your Smartphone for Vibration Analysis, Part 1: The Wolfram Language. “Until now, it has been difficult for the average engineer to perform simple vibration analysis. The initial cost for simple equipment, including software, may be several thousand dollars—and it is not unusual for advanced equipment and software to cost ten times as much…. I’ve figured out how to use the Wolfram Language on my smartphone to sample and analyze machine vibration and noise, and to perform surprisingly good vibration analysis. I’ll show you how, and give you some simple Wolfram Language code to get you started.”

In Development: Database of Human-Induced Earthquakes

In development: a database of human-induced earthquakes. (From fracking, mining, damming, etc.) “How many earthquakes have human processes induced? Probably many more than we think, scientists indicated last week at American Geophysical Union’s Fall Meeting in San Francisco, Calif. Just in the United States, the number of earthquakes per year in the center of the country has jumped dramatically since the early 2000s. According to the U.S. Geological Survey (USGS), each year between 1973 and 2008, the central United States experienced about 21 earthquakes of magnitude 3 or higher. This number grew to almost 100 per year between 2009 and 2013. In 2014 alone, the region experienced more than 400 earthquakes.”