Mesh Mess

FEM, CFD, CAE, and all that.

Tag: Engineering

Prohibit the metric system!

Through Irreal I found this eloquent argument against metric system in favor of US system ( I don’t call it imperial since UK has officially adopted metric). 8 signatures have been gathered toward 25000 goal, astonishingly less than the ratio of nations endorsing the almighty US system (which is just US, essentially).

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A test station in the Caspian Sea

English Russia has this post about how a naval weapon test station was constructed in the Caspian Sea. Though impaired by the wavy sea (the wave height during a storm in Caspian sea could reach 7.5-8.0 m) and abandoned, the structure remains untoppled after over half a century. The construction of the foundation, is quite a engineering masterpiece even for today’s standard:

The entire underwater part of the gigantic construction, called “Massive”, was built on the shore in the foundation pit with a capacity of 530,000 cubic meters. Sometimes they even dug by hand, but more often dredgers were used.

On the bottom of the foundation pit a huge ferroconcrete “box” was built, measuring 14 meters high. Next, the plate separating the pit from the sea was destroyed and the surfaced “box” was dragged to the building site of the station. There, in 1935, the “box” was filled with water and placed on the specially site, which was made of quarry stone. Thereafter construction of the station was done in a usual way, with people and materials being delivered by ships.

Preparing for the Big One:Audio from the National Building Museum

Preparing for the Big One: Assessing American Building Codes

“The 2010 earthquakes in Haiti and Chile reinforced the importance of building codes. Are regions in the United States just as vulnerable to a catastrophic earthquake? David Applegate, Senior Science Advisor for Earthquake and Geologic Hazards at the U.S. Geological Survey; Michael J. Armstrong, Senior Vice President, International Code Council; and Michael Mahoney, Geophysicist, Federal Emergency Management Agency discuss the state of seismic building codes around the country. Tom Ichniowski, DC Bureau Chief for Engineering News-Record, moderates.”

Perception of time and its concequence

via Freakonomics

Zotero updated

Just got the zotero updated. Glad to see the long-waited sync is there now, plus with many other nice & clean new features. Really like two things, other than the sync:

1. Add item by identifier. Now only the input of ISBN or DOI would do the work. This comes handy when a series of reference needs to be put in from hardcopies.

2. A small but considerate move of the new version is to use double click of the item to open the (first item of) attachment, no need to hit the ‘attachment’ anymore.